hypocotyl

Summary

Summary: The region of the stem beneath the stalks of the seed leaves (cotyledons) and directly above the young root of the embryo plant. It grows rapidly in seedlings showing epigeal germination and lifts the cotyledons above the soil surface. In this region (the transition zone) the arrangement of vascular bundles in the root changes to that of the stem. (From Concise Dictionary of Biology, 1990)

Top Publications

  1. pmc The ELF4-ELF3-LUX complex links the circadian clock to diurnal control of hypocotyl growth
    Dmitri A Nusinow
    Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego 9500 Gilman Drive, La Jolla, California 92093 0130, USA
    Nature 475:398-402. 2011
  2. ncbi A molecular framework for light and gibberellin control of cell elongation
    Miguel de Lucas
    Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnologia CSIC, Campus Univ Autónoma de Madrid, Cantoblanco c Darwin 3, 28049 Madrid, Spain
    Nature 451:480-4. 2008
  3. pmc Coordinated regulation of Arabidopsis thaliana development by light and gibberellins
    Suhua Feng
    Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520 8104, USA
    Nature 451:475-9. 2008
  4. pmc PIF4-mediated activation of YUCCA8 expression integrates temperature into the auxin pathway in regulating arabidopsis hypocotyl growth
    Jiaqiang Sun
    State Key Laboratory of Plant Genomics, National Centre for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
    PLoS Genet 8:e1002594. 2012
  5. ncbi Lateral relocation of auxin efflux regulator PIN3 mediates tropism in Arabidopsis
    Jiri Friml
    Max Delbruck Laboratorium in der Max Planck Gesellschaft, 50829 Köln, Germany
    Nature 415:806-9. 2002
  6. ncbi Rhythmic growth explained by coincidence between internal and external cues
    Kazunari Nozue
    Section of Plant Biology, College of Biological Sciences, University of California, Davis, One Shields Avenue, Davis, California 95616, USA
    Nature 448:358-61. 2007
  7. pmc A morning-specific phytohormone gene expression program underlying rhythmic plant growth
    Todd P Michael
    Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California, USA
    PLoS Biol 6:e225. 2008
  8. pmc Functional genomic analysis of the AUXIN RESPONSE FACTOR gene family members in Arabidopsis thaliana: unique and overlapping functions of ARF7 and ARF19
    Yoko Okushima
    Plant Gene Expression Center, Albany, California 94710, USA
    Plant Cell 17:444-63. 2005
  9. pmc Interdependency of brassinosteroid and auxin signaling in Arabidopsis
    Jennifer L Nemhauser
    Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, California, USA
    PLoS Biol 2:E258. 2004
  10. pmc A plasma membrane-bound putative endo-1,4-beta-D-glucanase is required for normal wall assembly and cell elongation in Arabidopsis
    F Nicol
    Laboratoire de Biologie Cellulaire, Institut National de Recherche Agronomique, Route de Saint Cyr, F 78026 Versailles Cedex, France
    EMBO J 17:5563-76. 1998

Research Grants

Detail Information

Publications335 found, 100 shown here

  1. pmc The ELF4-ELF3-LUX complex links the circadian clock to diurnal control of hypocotyl growth
    Dmitri A Nusinow
    Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego 9500 Gilman Drive, La Jolla, California 92093 0130, USA
    Nature 475:398-402. 2011
    ..Light and the circadian clock interact to consolidate the phase of hypocotyl cell elongation to peak at dawn under diurnal cycles in Arabidopsis thaliana...
  2. ncbi A molecular framework for light and gibberellin control of cell elongation
    Miguel de Lucas
    Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnologia CSIC, Campus Univ Autónoma de Madrid, Cantoblanco c Darwin 3, 28049 Madrid, Spain
    Nature 451:480-4. 2008
    ..Light induces photomorphogenesis, leading to inhibition of hypocotyl growth, whereas GAs promote etiolated growth, characterized by increased hypocotyl elongation...
  3. pmc Coordinated regulation of Arabidopsis thaliana development by light and gibberellins
    Suhua Feng
    Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520 8104, USA
    Nature 451:475-9. 2008
    ..its target gene promoters and regulating gene expression, and therefore abrogate PIF3-mediated light control of hypocotyl elongation...
  4. pmc PIF4-mediated activation of YUCCA8 expression integrates temperature into the auxin pathway in regulating arabidopsis hypocotyl growth
    Jiaqiang Sun
    State Key Laboratory of Plant Genomics, National Centre for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
    PLoS Genet 8:e1002594. 2012
    ..factor 4 (PIF4) and the phytohormone auxin are involved in the regulation of high temperature-induced hypocotyl elongation in Arabidopsis...
  5. ncbi Lateral relocation of auxin efflux regulator PIN3 mediates tropism in Arabidopsis
    Jiri Friml
    Max Delbruck Laboratorium in der Max Planck Gesellschaft, 50829 Köln, Germany
    Nature 415:806-9. 2002
    ..In addition, actin-dependent relocalization of PIN3 in response to gravity provides a mechanism for redirecting auxin flux to trigger asymmetric growth...
  6. ncbi Rhythmic growth explained by coincidence between internal and external cues
    Kazunari Nozue
    Section of Plant Biology, College of Biological Sciences, University of California, Davis, One Shields Avenue, Davis, California 95616, USA
    Nature 448:358-61. 2007
    ..This interaction may serve as a paradigm for understanding how endogenous and environmental signals cooperate to control other processes...
  7. pmc A morning-specific phytohormone gene expression program underlying rhythmic plant growth
    Todd P Michael
    Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California, USA
    PLoS Biol 6:e225. 2008
    ..In plants, growth rates of the embryonic stem (hypocotyl) are maximal at different times of day, depending on external photoperiod and the internal circadian clock...
  8. pmc Functional genomic analysis of the AUXIN RESPONSE FACTOR gene family members in Arabidopsis thaliana: unique and overlapping functions of ARF7 and ARF19
    Yoko Okushima
    Plant Gene Expression Center, Albany, California 94710, USA
    Plant Cell 17:444-63. 2005
    ..and arf19 single mutants, including severely impaired lateral root formation and abnormal gravitropism in both hypocotyl and root...
  9. pmc Interdependency of brassinosteroid and auxin signaling in Arabidopsis
    Jennifer L Nemhauser
    Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, California, USA
    PLoS Biol 2:E258. 2004
    ..This work fundamentally alters our view of BR and auxin signaling and describes a powerful new approach to identify regulatory elements required for response to specific stimuli...
  10. pmc A plasma membrane-bound putative endo-1,4-beta-D-glucanase is required for normal wall assembly and cell elongation in Arabidopsis
    F Nicol
    Laboratoire de Biologie Cellulaire, Institut National de Recherche Agronomique, Route de Saint Cyr, F 78026 Versailles Cedex, France
    EMBO J 17:5563-76. 1998
    ..KOR mRNA was found in all organs examined, and in the developing dark-grown hypocotyl, mRNA levels were correlated with rapid cell elongation...
  11. ncbi Arabidopsis SMALL AUXIN UP RNA63 promotes hypocotyl and stamen filament elongation
    Keun Chae
    Department of Biology, University of North Carolina, Chapel Hill, NC 27599 3280, USA
    Plant J 71:684-97. 2012
    ..constructs (aMIR-SAUR-A or -B) that target a SAUR subfamily (SAUR61-SAUR68 and SAUR75) had slightly reduced hypocotyl and stamen filament elongation...
  12. pmc Phytochrome-imposed oscillations in PIF3 protein abundance regulate hypocotyl growth under diurnal light/dark conditions in Arabidopsis
    Judit Soy
    Departament de Genetica Molecular, Center for Research in Agricultural Genomics, CSIC IRTA UAB UB, Campus Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
    Plant J 71:390-401. 2012
    ..To assess the possible role of PIF3 in this process, we have analyzed hypocotyl responses and marker gene expression in pif single- and higher-order mutants...
  13. ncbi Nuclear-localized BZR1 mediates brassinosteroid-induced growth and feedback suppression of brassinosteroid biosynthesis
    Zhi Yong Wang
    Howard Hughes Medical Institute and Plant Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
    Dev Cell 2:505-13. 2002
    ..Our results demonstrate that BZR1 is a positive regulator of the BR signaling pathway that mediates both downstream BR responses and feedback regulation of BR biosynthesis...
  14. ncbi Constitutive expression of the CIRCADIAN CLOCK ASSOCIATED 1 (CCA1) gene disrupts circadian rhythms and suppresses its own expression
    Z Y Wang
    Department of Molecular, Cell, and Developmental Biology, UCLA, Los Angeles, California 90095 1606, USA
    Cell 93:1207-17. 1998
    ..Furthermore, the expression of both endogenous CCA1 and the related LHY gene was suppressed. Our results suggest that CCA1 is a part of a feedback loop that is closely associated with the circadian clock in Arabidopsis...
  15. ncbi Polarization of PIN3-dependent auxin transport for hypocotyl gravitropic response in Arabidopsis thaliana
    Hana Rakusová
    Department of Plant Systems Biology, VIB, 9052 Gent, Belgium
    Plant J 67:817-26. 2011
    ..Here we provide insights into the mechanism for hypocotyl gravitropic growth...
  16. pmc Differential regulation of cellulose orientation at the inner and outer face of epidermal cells in the Arabidopsis hypocotyl
    Elizabeth Faris Crowell
    Institut Jean Pierre Bourgin, Unité Mixte de Recherche 1318, INRA AgroParisTech, Institut National de la Recherche Agronomique Centre de Versailles Grignon, 78000 Versailles, France
    Plant Cell 23:2592-605. 2011
    ..Our study highlights the previously underestimated complexity of cortical microtubule organization in the shoot epidermis and underscores a role for the inner tissues in the regulation of growth anisotropy...
  17. pmc Arabidopsis chromatin remodeling factor PICKLE interacts with transcription factor HY5 to regulate hypocotyl cell elongation
    Yanjun Jing
    Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
    Plant Cell 25:242-56. 2013
    ..process that involves light-mediated transcriptome changes, histone modifications, and inhibition of hypocotyl growth. However, the chromatin-based regulatory mechanism underlying this process remains largely unknown...
  18. pmc An endogenous carbon-sensing pathway triggers increased auxin flux and hypocotyl elongation
    Jodi L Stewart Lilley
    Department of Biology, University of Washington, Seattle, Washington 98195, USA
    Plant Physiol 160:2261-70. 2012
    ..Thus, PIF transcription factors integrate growth with metabolic demands and thereby facilitate functional equilibrium during photomorphogenesis...
  19. pmc Auxin transport is required for hypocotyl elongation in light-grown but not dark-grown Arabidopsis
    P J Jensen
    Department of Biology, Indiana University, Bloomington 47405, USA
    Plant Physiol 116:455-62. 1998
    ..When Arabidopsis thaliana seedlings were grown in the light on medium containing 1.0 microM NPA, hypocotyl and root elongation and gravitropism were strongly inhibited...
  20. ncbi Gating of the rapid shade-avoidance response by the circadian clock in plants
    Michael G Salter
    Department of Biology, University of Leicester, Leicester LE1 7RH, UK
    Nature 426:680-3. 2003
    ..4). Furthermore PIL1 and TOC1 are both required for the accelerated growth associated with the shade-avoidance response...
  21. ncbi The circadian clock regulates the photoperiodic response of hypocotyl elongation through a coincidence mechanism in Arabidopsis thaliana
    Yusuke Niwa
    Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University, Chikusa ku, Nagoya 464 8601, Japan
    Plant Cell Physiol 50:838-54. 2009
    ..Here, we report that the promotion of hypocotyl elongation is in fact dependent on changes in photoperiods in such a way that an accelerated hypocotyl ..
  22. pmc Interactions among PIN-FORMED and P-glycoprotein auxin transporters in Arabidopsis
    Joshua J Blakeslee
    Department of Horticulture, Purdue University, West Lafayette, Indiana 47907 2010, USA
    Plant Cell 19:131-47. 2007
    ..These results suggest that PINs and PGPs characterize coordinated, independent auxin transport mechanisms but also function interactively in a tissue-specific manner...
  23. ncbi A conditionally fertile coi1 allele indicates cross-talk between plant hormone signalling pathways in Arabidopsis thaliana seeds and young seedlings
    Christine Ellis
    School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
    Planta 215:549-56. 2002
    ..We have used coi1-16 seeds to define novel interactions between JA and other hormone signalling pathways in seed germination and in the development of young seedlings...
  24. pmc DELLAs contribute to plant photomorphogenesis
    Patrick Achard
    John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom
    Plant Physiol 143:1163-72. 2007
    ..For example, light inhibits seedling hypocotyl growth via activation of phytochromes and additional photoreceptors...
  25. ncbi DELLA protein function in growth responses to canopy signals
    Tanja Djakovic-Petrovic
    Plant Ecophysiology, Institute of Environmental Biology, Utrecht University, Sorbonnelaan 16, 3584 CA, Utrecht, The Netherlands
    Plant J 51:117-26. 2007
    ..These data provide novel information on the regulation of shade-avoidance under ecologically important conditions, defining the importance of DELLA proteins and GA and unravelling the existence of GA- and DELLA-independent mechanisms...
  26. ncbi Of light and length: regulation of hypocotyl growth in Arabidopsis
    Filip Vandenbussche
    Unit Plant Hormone Signalling and Bio imaging, Department of Molecular Genetics, Ghent University, Belgium
    Bioessays 27:275-84. 2005
    ..The embryonic and postembryonic seedling stem, called the hypocotyl, of the model species Arabidopsis (thale cress) has proved to be an excellent system for studying such signal ..
  27. pmc Mobile gibberellin directly stimulates Arabidopsis hypocotyl xylem expansion
    Laura Ragni
    Department of Plant Molecular Biology, University of Lausane, CH 1015 Lausane, Switzerland
    Plant Cell 23:1322-36. 2011
    ..We found that flowering-dependent hypocotyl xylem expansion is a general feature of herbaceous plants with a rosette growth habit...
  28. pmc FAR-RED ELONGATED HYPOCOTYL1 and FHY1-LIKE associate with the Arabidopsis transcription factors LAF1 and HFR1 to transmit phytochrome A signals for inhibition of hypocotyl elongation
    Seong Wook Yang
    Laboratory of Plant Molecular Biology, Rockefeller University, New York, New York 10065, USA
    Plant Cell 21:1341-59. 2009
    ..Mutant analyses have identified more than 10 positive components acting downstream of phyA to inhibit hypocotyl elongation. However, their sites of action and their hierarchical relationships are poorly understood...
  29. pmc Light-regulated hypocotyl elongation involves proteasome-dependent degradation of the microtubule regulatory protein WDL3 in Arabidopsis
    Xiaomin Liu
    State Key Laboratory of Plant Physiology and Biochemistry, Department of Plant Sciences, College of Biological Sciences, China Agricultural University, Beijing 100193, China
    Plant Cell 25:1740-55. 2013
    Light significantly inhibits hypocotyl cell elongation, and dark-grown seedlings exhibit elongated, etiolated hypocotyls...
  30. pmc Root-localized phytochrome chromophore synthesis is required for photoregulation of root elongation and impacts root sensitivity to jasmonic acid in Arabidopsis
    Stephanie E Costigan
    Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, Michigan 48824 1312, USA
    Plant Physiol 157:1138-50. 2011
    ....
  31. pmc CCA1 and ELF3 Interact in the control of hypocotyl length and flowering time in Arabidopsis
    Sheen X Lu
    University of California, Department of Molecular, Cell, and Developmental Biology, Los Angeles, California 90095, USA
    Plant Physiol 158:1079-88. 2012
    ..Arabidopsis thaliana), the circadian clock regulates a wide variety of physiological processes, including hypocotyl elongation and flowering time...
  32. pmc MDP25, a novel calcium regulatory protein, mediates hypocotyl cell elongation by destabilizing cortical microtubules in Arabidopsis
    Jiejie Li
    State Key Laboratory of Plant Physiology and Biochemistry, Department of Plant Sciences, College of Biological Sciences, China Agricultural University, Beijing, China
    Plant Cell 23:4411-27. 2011
    The regulation of hypocotyl elongation is important for plant growth. Microtubules play a crucial role during hypocotyl cell elongation. However, the molecular mechanism underlying this process is not well understood...
  33. pmc The influence of light on microtubule dynamics and alignment in the Arabidopsis hypocotyl
    Adrian Sambade
    Department of Cell and Developmental Biology, John Ines Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
    Plant Cell 24:192-201. 2012
    ..This suggests a mechanism in which the light-signaling pathway modifies the dynamics of microtubules and their ability to switch between orthogonal axes...
  34. ncbi Auxin, ethylene and brassinosteroids: tripartite control of growth in the Arabidopsis hypocotyl
    Liesbeth De Grauwe
    Unit Plant Hormone Signaling and Bio Imaging, Department of Molecular Genetics, Ghent University, Ledeganckstraat 35, B 9000 Gent, Belgium
    Plant Cell Physiol 46:827-36. 2005
    ..In the light, a similar complexity of hormonal regulation has been revealed at the level of hypocotyl elongation...
  35. pmc SHORT HYPOCOTYL UNDER BLUE1 truncations and mutations alter its association with a signaling protein complex in Arabidopsis
    Yun Zhou
    Department of Plant Biology, University of Minesota, St Paul, Minesota 55108, USA
    Plant Cell 22:703-15. 2010
    ..We previously isolated SHORT HYPOCOTYL UNDER BLUE1 (SHB1), a putative transcriptional coactivator in light signaling...
  36. ncbi Hypocotyl-based Agrobacterium-mediated transformation of soybean (Glycine max) and application for RNA interference
    Geliang Wang
    Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, 100093 Beijing, China
    Plant Cell Rep 27:1177-84. 2008
    ..5 to 81.9%. Our study demonstrates that this transgenic approach could be efficiently used to improve soybean quality and productivity through functional genomics...
  37. pmc Restoration of mature etiolated cucumber hypocotyl cell wall susceptibility to expansin by pretreatment with fungal pectinases and EGTA in vitro
    Qingxin Zhao
    Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing 210046, People s Republic of China
    Plant Physiol 147:1874-85. 2008
    ..cannot restore the mature wall's extensibility, we can conclude that the pectin network, especially calcium-pectate bridges, may be the primary factor that determines cucumber hypocotyl mature cell walls' unresponsiveness to expansin.
  38. ncbi Transcriptional responses to flooding stress in roots including hypocotyl of soybean seedlings
    Yohei Nanjo
    National Institute of Crop Science, Tsukuba 305 8518, Japan
    Plant Mol Biol 77:129-44. 2011
    To understand the transcriptional responses to flooding stress in roots including hypocotyl of soybean seedlings, genome-wide changes in gene expression were analyzed using a soybean microarray chip containing 42,034 60-mer ..
  39. pmc HYPOTrace: image analysis software for measuring hypocotyl growth and shape demonstrated on Arabidopsis seedlings undergoing photomorphogenesis
    Liya Wang
    Department of Botany, University of Wisconsin, Madison, Wisconsin 53706, USA
    Plant Physiol 149:1632-7. 2009
    ..components analysis to extract a set of ordered midline points (medial axis) from images of the seedling hypocotyl. Pixel intensity is weighted to avoid the medial axis being diverted by the cotyledons in areas where the two ..
  40. ncbi Phototropin LOV domains exhibit distinct roles in regulating photoreceptor function
    John M Christie
    Department of Plant Biology, Carnegie Institution of Washington, Stanford, California 94305, USA
    Plant J 32:205-19. 2002
    ..Moreover, photochemically active LOV2 alone in full-length phot1 is sufficient to elicit hypocotyl phototropism in transgenic Arabidopsis, whereas photochemically active LOV1 alone is not...
  41. ncbi Light-mediated polarization of the PIN3 auxin transporter for the phototropic response in Arabidopsis
    Zhaojun Ding
    Department of Plant Systems Biology, VIB, Universiteit Gent, Technologiepark 927, B 9052 Gent, Belgium
    Nat Cell Biol 13:447-52. 2011
    ..We show that light polarizes the cellular localization of the auxin efflux carrier PIN3 in hypocotyl endodermis cells, resulting in changes in auxin distribution and differential growth...
  42. pmc The Arabidopsis histidine phosphotransfer proteins are redundant positive regulators of cytokinin signaling
    Claire E Hutchison
    Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599 3280, USA
    Plant Cell 18:3073-87. 2006
    ..These data indicate that most of the AHPs are redundant, positive regulators of cytokinin signaling and affect multiple aspects of plant development...
  43. ncbi Proteome analysis of soybean hypocotyl and root under salt stress
    K Aghaei
    National Institute of Crop Science, Kannondai 2 1 18, Tsukuba, 305 8518, Japan
    Amino Acids 36:91-8. 2009
    ..Especially at 200 mM, the length and fresh weight of the hypocotyl and root reduced under salt stress, while the proline content increased...
  44. ncbi Protein targets of tyrosine nitration in sunflower (Helianthus annuus L.) hypocotyls
    Mounira Chaki
    Grupo de Señalización Molecular y Sistemas Antioxidantes en Plantas, Unidad Asociada al CSIC EEZ, Departamento de Bioquimica y Biologia Molecular, Universidad de Jaen, Spain
    J Exp Bot 60:4221-34. 2009
    ..When the hypocotyl extracts were exposed to 0...
  45. ncbi HY5 is a point of convergence between cryptochrome and cytokinin signalling pathways in Arabidopsis thaliana
    Filip Vandenbussche
    Department of Molecular Genetics, Unit Plant Hormone Signalling and Bio imaging, Ghent University, Ledeganckstraat 35, B 9000 Gent, Belgium
    Plant J 49:428-41. 2007
    ..in Arabidopsis is regulated principally by the cryptochrome flavin-type photoreceptors, which control hypocotyl growth inhibition, cotyledon and leaf expansion, and the expression of light-regulated genes...
  46. ncbi The ABC subfamily B auxin transporter AtABCB19 is involved in the inhibitory effects of N-1-naphthyphthalamic acid on the phototropic and gravitropic responses of Arabidopsis hypocotyls
    Akitomo Nagashima
    Genetic Regulatory Systems Research Team, RIKEN Plant Science Center, 1 7 22 Suehiro cho, Tsurumi ku, Yokohama, Kanagawa, 230 0045 Japan
    Plant Cell Physiol 49:1250-5. 2008
    ..show that a defect in the ABC subfamily B auxin transporter AtABCB19 suppresses the inhibitory effects of NPA on hypocotyl phototropism and gravitropism, but not on hypocotyl elongation...
  47. pmc The Arabidopsis eer1 mutant has enhanced ethylene responses in the hypocotyl and stem
    P B Larsen
    Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland 20742, USA
    Plant Physiol 125:1061-73. 2001
    ..in Arabidopsis, we isolated a novel recessive mutant, eer1, which displays increased ethylene sensitivity in the hypocotyl and stem. Dark-grown eer1 seedlings have short and thick hypocotyls even in the absence of added ethylene...
  48. pmc Cellular and subcellular localization of phototropin 1
    Koji Sakamoto
    Department of Plant Biology, Carnegie Institution of Washington, 260 Panama Street, Stanford, CA 94305, USA
    Plant Cell 14:1723-35. 2002
    ..largely to the plasma membrane region of the transverse cell walls in the cortical cells of both root and hypocotyl. It is found at both apical and basal ends of these cortical cells...
  49. ncbi Blue-light-mediated shade avoidance requires combined auxin and brassinosteroid action in Arabidopsis seedlings
    Diederik H Keuskamp
    Plant Ecophysiology, Institute of Environmental Biology, Utrecht University, Padualaan 8, Utrecht, The Netherlands
    Plant J 67:208-17. 2011
    ..Here we show that both auxin and brassinosteroids (BR) play an important role in the regulation of enhanced hypocotyl elongation of Arabidopsis seedlings in response to blue light depletion...
  50. ncbi Over-expression of an AT-hook gene, AHL22, delays flowering and inhibits the elongation of the hypocotyl in Arabidopsis thaliana
    Chaowen Xiao
    Institute of Crop Sciences, The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Nandajie 12, Zhongguancun, Haidian District, Beijing, People s Republic of China
    Plant Mol Biol 71:39-50. 2009
    ..Further analysis showed that AHL22 controlled flowering and hypocotyl elongation might result from primarily the regulation of FT and PIF4 expression, respectively.
  51. ncbi Flowering as a condition for xylem expansion in Arabidopsis hypocotyl and root
    Richard Sibout
    Department of Plant Molecular Biology, University of Lausanne, CH 1015 Lausanne, Switzerland
    Curr Biol 18:458-63. 2008
    ..The factors that control this transition are unknown. We observed natural variation in Arabidopsis hypocotyl secondary growth and its coordination with root secondary growth...
  52. ncbi BFA effects are tissue and not just plant specific
    David G Robinson
    Department of Cell Biology, Heidelberg Institute for Plant Sciences, University of Heidelberg, 69120 Heidelberg, Germany
    Trends Plant Sci 13:405-8. 2008
    ..Due to its range of morphological effects on the Golgi apparatus in a variety of plant tissues, we believe that there is more to the BFA response than the primary molecular targets so far identified...
  53. pmc Receptor signal output mediated by the ETR1 N terminus is primarily subfamily I receptor dependent
    Fang Xie
    National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
    Plant Physiol 142:492-508. 2006
    ..Possible roles of subfamily I receptors and disulfide linkages in ETR1 receptor signal output mediated through the N terminus are discussed...
  54. pmc KOBITO1 encodes a novel plasma membrane protein necessary for normal synthesis of cellulose during cell expansion in Arabidopsis
    Silvere Pagant
    Laboratoire de Biologie Cellulaire, Institut National de la Recherche Agronomique, Route de Saint Cyr, 78026 Versailles Cedex, France
    Plant Cell 14:2001-13. 2002
    ..KOB1 may be part of the cellulose synthesis machinery in elongating cells, or it may play a role in the coordination between cell elongation and cellulose synthesis...
  55. pmc Restricted cell elongation in Arabidopsis hypocotyls is associated with a reduced average pectin esterification level
    Paul Derbyshire
    Department of Metabolic Biology, John Innes Centre, Norwich, UK
    BMC Plant Biol 7:31. 2007
    ..Dicotyledonous primary (growing) cell walls contain cellulose, xyloglucan, pectin and proteins, but little is known about how each polymer class contributes to the cell wall mechanical properties that control extensibility...
  56. ncbi Unexpected roles for cryptochrome 2 and phototropin revealed by high-resolution analysis of blue light-mediated hypocotyl growth inhibition
    K M Folta
    Department of Botany, University of Wisconsin, 430 Lincoln Drive, Madison, WI 53706, USA
    Plant J 26:471-8. 2001
    Blue light (BL) rapidly and strongly inhibits hypocotyl elongation during the photomorphogenic response known as de-etiolation, the transformation of a dark-grown seedling into a pigmented, photoautotrophic organism...
  57. pmc Nonmotile cellulose synthase subunits repeatedly accumulate within localized regions at the plasma membrane in Arabidopsis hypocotyl cells following 2,6-dichlorobenzonitrile treatment
    Seth DeBolt
    Department of Plant Biology, Carnegie Institution for Science, Stanford, California 94305, USA
    Plant Physiol 145:334-8. 2007
  58. ncbi Phytochrome in cotyledons regulates the expression of genes in the hypocotyl through auxin-dependent and -independent pathways
    Shin ichiro Tanaka
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo ku, Kyoto, 606 8502 Japan
    Plant Cell Physiol 43:1171-81. 2002
    ..we identified three promoter/enhancer trap lines (M812, J53, J59) that exhibited reporter expression in the hypocotyl in response to the end-of-day far-red light treatment...
  59. pmc SHORT HYPOCOTYL IN WHITE LIGHT1, a serine-arginine-aspartate-rich protein in Arabidopsis, acts as a negative regulator of photomorphogenic growth
    Shikha Bhatia
    National Institute for Plant Genome Research, New Delhi 110067, India
    Plant Physiol 147:169-78. 2008
    ..We have identified and functionally characterized a regulatory gene SHORT HYPOCOTYL IN WHITE LIGHT1 (SHW1) involved in Arabidopsis (Arabidopsis thaliana) seedling development...
  60. ncbi DFL2, a new member of the Arabidopsis GH3 gene family, is involved in red light-specific hypocotyl elongation
    Tomoyuki Takase
    Graduate School of Integrated Science, Yokohama City University 22 2 Seto, Kanazawaku, Yokohama, 236 0027 Japan
    Plant Cell Physiol 44:1071-80. 2003
    A new GH3-related gene, designated DFL2, causes a short hypocotyl phenotype when overexpressed under red and blue light and a long hypocotyl when antisensed under red light conditions...
  61. ncbi Overexpression of soybean GmCBL1 enhances abiotic stress tolerance and promotes hypocotyl elongation in Arabidopsis
    Zhi Yong Li
    The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Chinese National Center of Plant Gene Research Wuhan HUST Part, College of Life Science and Technology, Huazhong University of Science and Technology HUST, Wuhan 430074, China
    Biochem Biophys Res Commun 427:731-6. 2012
    ..Overexpression of GmCBL1 also promoted hypocotyl elongation under light conditions...
  62. ncbi Transient gibberellin application promotes Arabidopsis thaliana hypocotyl cell elongation without maintaining transverse orientation of microtubules on the outer tangential wall of epidermal cells
    Susanna Sauret-Güeto
    John Innes Centre, Colney, Norwich NR4 7UH, UK
    Plant J 69:628-39. 2012
    ..that pulsed application of GA to the relatively slowly growing cells of the unexpanded light-grown Arabidopsis hypocotyl results in a transient burst of anisotropic cellular growth...
  63. pmc PIL5, a phytochrome-interacting basic helix-loop-helix protein, is a key negative regulator of seed germination in Arabidopsis thaliana
    Eunkyoo Oh
    Department of Biological Sciences, KAIST, Daejeon 305 701, Korea
    Plant Cell 16:3045-58. 2004
    ..lines indicate that PIL5 is a negative factor in Phy-mediated promotion of seed germination, inhibition of hypocotyl negative gravitropism, and inhibition of hypocotyl elongation...
  64. pmc Mutant analyses define multiple roles for phytochrome C in Arabidopsis photomorphogenesis
    Keara A Franklin
    Department of Biology, University of Leicester, Leicester LE1 7RH, United Kingdom
    Plant Cell 15:1981-9. 2003
    ..phyA and phyC appear to act redundantly to modulate the phyB-mediated inhibition of hypocotyl elongation in red light and to function together to regulate rosette leaf morphology...
  65. pmc MASSUGU2 encodes Aux/IAA19, an auxin-regulated protein that functions together with the transcriptional activator NPH4/ARF7 to regulate differential growth responses of hypocotyl and formation of lateral roots in Arabidopsis thaliana
    Kiyoshi Tatematsu
    Division of Biological Sciences, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060 0810, Japan
    Plant Cell 16:379-93. 2004
    ..isolated a dominant, auxin-insensitive mutant of Arabidopsis thaliana, massugu2 (msg2), that displays neither hypocotyl gravitropism nor phototropism, fails to maintain an apical hook as an etiolated seedling, and is defective in ..
  66. ncbi Overexpression of the non-canonical Aux/IAA genes causes auxin-related aberrant phenotypes in Arabidopsis
    Atsuko Sato
    Division of Biological Sciences, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060 0810, Japan
    Physiol Plant 133:397-405. 2008
    ..severe defects: Some of them showed a semi-dwarf phenotype; gravitropic growth orientation was often affected in hypocotyl and root; vasculature of cotyledons was malformed; the primary root stopped growing soon after germination ..
  67. ncbi Involvement of COP1 in ethylene- and light-regulated hypocotyl elongation
    Xiaolei Liang
    School of Life Sciences, Lanzhou University, Lanzhou, 730000, People s Republic of China
    Planta 236:1791-802. 2012
    ..Application of 1-aminocyclopropane-1-carboxylic acid (ACC, an ethylene precursor) suppresses the hypocotyl elongation of Arabidopsis seedlings in dark, but stimulates it in light...
  68. pmc Progressive transverse microtubule array organization in hormone-induced Arabidopsis hypocotyl cells
    Laura Vineyard
    Department of Biology, Indiana University, Bloomington, Indiana 47405, USA
    Plant Cell 25:662-76. 2013
    The acentriolar cortical microtubule arrays in dark-grown hypocotyl cells organize into a transverse coaligned pattern that is critical for axial plant growth...
  69. pmc Arabidopsis microtubule destabilizing protein40 is involved in brassinosteroid regulation of hypocotyl elongation
    Xianling Wang
    State Key Laboratory of Plant Physiology and Biochemistry, Department of Plant Sciences, College of Biological Sciences, China Agricultural University, Beijing 100193, China
    Plant Cell 24:4012-25. 2012
    ..BR) phytohormones play crucial roles in regulating plant cell growth and morphogenesis, particularly in hypocotyl cell elongation...
  70. ncbi Change in XET activities, cell wall extensibility and hypocotyl elongation of soybean seedlings at low water potential
    Yajun Wu
    College of Marine Studies, University of Delaware, 700 Pilottown Road, Lewes, DE 19958 1298, USA
    Planta 220:593-601. 2005
    ..Merr.) seedlings, exposing the roots to water-deficient vermiculite (psi(w)=-0.36 MPa) inhibited hypocotyl (stem) elongation...
  71. ncbi Glucosamine causes overproduction of reactive oxygen species, leading to repression of hypocotyl elongation through a hexokinase-mediated mechanism in Arabidopsis
    Hyun Woo Ju
    Department of Plant Biotechnology, Agricultural Plant Stress Research Center and Biotechnology Research Institute, College of Agriculture and Life Science, Chonnam National University, Gwangju, Korea
    J Plant Physiol 166:203-12. 2009
    ..In this study, we have shown that exogenous GlcN inhibits hypocotyl elongation in Arabidopsis, whereas glucose and its analogs alleviate this inhibitory effect...
  72. pmc Automated analysis of hypocotyl growth dynamics during shade avoidance in Arabidopsis
    Benjamin Cole
    Plant Biology Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
    Plant J 65:991-1000. 2011
    ..Here, we report the development of a new software-based tool, called HyDE (Hypocotyl Determining Engine) to measure hypocotyl lengths of time-resolved image stacks of Arabidopsis wild-type and ..
  73. ncbi Phytochrome interacting factors (PIFs) are essential regulators for sucrose-induced hypocotyl elongation in Arabidopsis
    Zhongjuan Liu
    Key Laboratory of Arid and Grassland Agroecology Ministry of Education, School of Life Sciences, Lanzhou University, Lanzhou Gansu 730000, People s Republic of China
    J Plant Physiol 168:1771-9. 2011
    ..a subfamily of basic helix-loop-helix transcript factors and have been proposed to act as positive regulators of hypocotyl elongation under normal condition...
  74. pmc Detection of spatial-specific phytochrome responses using targeted expression of biliverdin reductase in Arabidopsis
    Sankalpi N Warnasooriya
    Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, Michigan 48824 1312, USA
    Plant Physiol 149:424-33. 2009
    ..A number of FR high irradiance responses were disrupted in CAB::pBVR lines, including FR-dependent inhibition of hypocotyl elongation and stimulation of anthocyanin accumulation...
  75. ncbi Germination of Arabidopsis thaliana seeds is not completed as a result of elongation of the radicle but of the adjacent transition zone and lower hypocotyl
    Elwira Sliwinska
    Department of Genetics and Plant Breeding, University of Technology and Life Sciences, 85 789 Bydgoszcz, Poland
    J Exp Bot 60:3587-94. 2009
    ..This region, identifiable as the lower hypocotyl and hypocotyl-radicle transition zone, is also definable by accumulation of carbohydrate-containing bodies ..
  76. pmc The Arabidopsis EIN3 binding F-Box proteins EBF1 and EBF2 have distinct but overlapping roles in ethylene signaling
    Brad M Binder
    Department of Botany, University of Wisconsin, Madison, Wisconsin 53706, USA
    Plant Cell 19:509-23. 2007
    ..Kinetic analyses of hypocotyl growth inhibition in response to ethylene and growth recovery after removal of the hormone revealed that EBF1 ..
  77. pmc Genetic mapping of natural variation in a shade avoidance response: ELF3 is the candidate gene for a QTL in hypocotyl growth regulation
    M Paula Coluccio
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires y Consejo Nacional de Investigaciones Científicas y Técnicas, Av San Martin 4453, C1417DSE, Ciudad de Buenos Aires, Argentina
    J Exp Bot 62:167-76. 2011
    ..This study demonstrates that a wide range of genetic variation for hypocotyl elongation in response to an FR pulse at the end of day (EOD), a light signal that simulates natural shade, ..
  78. ncbi HYPOSENSITIVE TO LIGHT, an alpha/beta fold protein, acts downstream of ELONGATED HYPOCOTYL 5 to regulate seedling de-etiolation
    Xiao Dong Sun
    Department of Plant Biology, University of Minnesota, St Paul, MN 55108, USA
    Mol Plant 4:116-26. 2011
    ..Both htl-1 and htl-2 alleles displayed a long hypocotyl phenotype under red, far-red, and blue light, whereas overexpression of HTL caused a short hypocotyl phenotype ..
  79. pmc FAR-RED INSENSITIVE219 modulates CONSTITUTIVE PHOTOMORPHOGENIC1 activity via physical interaction to regulate hypocotyl elongation in Arabidopsis
    Jhy Gong Wang
    Institute of Plant Biology, College of Life Science, National Taiwan University, Taipei 106, Taiwan
    Plant Physiol 156:631-46. 2011
    ..coiled-coil domain and NTox for the N-terminal 300-amino acid region) exhibited a dominant-negative long-hypocotyl phenotype under FR light, reflected as reduced photomorphogenic responses and altered levels of COP1 and ..
  80. pmc Reduced V-ATPase activity in the trans-Golgi network causes oxylipin-dependent hypocotyl growth Inhibition in Arabidopsis
    Angela Brüx
    Center for Plant Molecular Biology, University of Tubingen, 72076 Tubingen, Germany
    Plant Cell 20:1088-100. 2008
    ..Furthermore, we provide evidence that the reduced hypocotyl cell expansion in det3 is conditional and due to active, hormone-mediated growth inhibition caused by a cell ..
  81. pmc C-23 hydroxylation by Arabidopsis CYP90C1 and CYP90D1 reveals a novel shortcut in brassinosteroid biosynthesis
    Toshiyuki Ohnishi
    Institute for Chemical Research, Kyoto University, Uji, Kyoto 611 0011, Japan
    Plant Cell 18:3275-88. 2006
    ....
  82. ncbi DBB1a, involved in gibberellin homeostasis, functions as a negative regulator of blue light-mediated hypocotyl elongation in Arabidopsis
    Qiming Wang
    College of Biology, State Key Laboratory of Chemo Biosensing and Chemometrics, Hunan University, Changsha, China
    Planta 233:13-23. 2011
    ..Analysis of hypocotyl growth of these lines indicated that DBB1a promoted hypocotyl elongation under blue light condition...
  83. ncbi FERONIA is a key modulator of brassinosteroid and ethylene responsiveness in Arabidopsis hypocotyls
    Stephen D Deslauriers
    Department of Biochemistry, University of California Riverside, Riverside, CA 92521, USA
    Mol Plant 3:626-40. 2010
    ..From this, a mutant was identified as having a dark-grown hypocotyl that is indistinguishable from Col-0 wt in the presence of the ethylene perception inhibitor AgNO₃, yet has ..
  84. pmc Auxin activates the plasma membrane H+-ATPase by phosphorylation during hypocotyl elongation in Arabidopsis
    Koji Takahashi
    Division of Biological Science, Graduate School of Science, Nagoya University, Nagoya, Aichi, Japan
    Plant Physiol 159:632-41. 2012
    ..Early-phase auxin-induced hypocotyl elongation, on the other hand, has long been explained by the acid-growth theory, for which proton extrusion by ..
  85. pmc Hypocotyl transcriptome reveals auxin regulation of growth-promoting genes through GA-dependent and -independent pathways
    Elisabeth J Chapman
    Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, California, United States of America
    PLoS ONE 7:e36210. 2012
    ..To begin to address this question, we have focused on auxin regulation of cell expansion in the Arabidopsis hypocotyl. We show that auxin-mediated hypocotyl elongation is dependent upon the TIR1/AFB family of auxin receptors and ..
  86. pmc Tensile properties of Arabidopsis cell walls depend on both a xyloglucan cross-linked microfibrillar network and rhamnogalacturonan II-borate complexes
    Peter Ryden
    Department of Food Materials Science, Institute of Food Research, Norwich Research Park, Colney, United Kingdom
    Plant Physiol 132:1033-40. 2003
    ..We conclude that borate-complexed rhamnogalacturonan II and galactosylated xyloglucan contribute to the tensile strength of cell walls...
  87. pmc Cell wall biogenesis of Arabidopsis thaliana elongating cells: transcriptomics complements proteomics
    Elisabeth Jamet
    Surfaces Cellulaires et Signalisation chez les Végétaux, UMR 5546 CNRS UPS Université de Toulouse, Pole de Biotechnologie Vegetale, 24 Chemin de Borde Rouge, BP 42617 Auzeville, 31326 Castanet Tolosan, France
    BMC Genomics 10:505. 2009
    ..In order to understand cell wall biogenesis during cell elongation, mRNA profiling was made on half- (active elongation) and fully-grown (after growth arrest) etiolated hypocotyls...
  88. ncbi The AFB4 auxin receptor is a negative regulator of auxin signaling in seedlings
    Katie Greenham
    Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA 92093, USA
    Curr Biol 21:520-5. 2011
    ..AFB4 results in a range of growth defects that are consistent with auxin hypersensitivity, including increased hypocotyl and petiole elongation and increased numbers of lateral roots...
  89. pmc SGR1, SGR2, SGR3: novel genetic loci involved in shoot gravitropism in Arabidopsis thaliana
    H Fukaki
    Department of Botany, Faculty of Science, Kyoto University, Japan
    Plant Physiol 110:945-55. 1996
    ..We conclude that SGR1, SGR2, and SGR3 are novel genetic loci specifically involved in the regulatory mechanisms of shoot gravitropism in A. thaliana...
  90. pmc A role for the TOC complex in Arabidopsis root gravitropism
    John P Stanga
    Laboratory of Genetics, Department of Botany, University of Wisconsin, Madison, Wisconsin 53706, USA
    Plant Physiol 149:1896-905. 2009
    ..They saltate like the wild type and sediment at wild-type rates upon gravistimulation. These data point to a role for the plastidic TOC complex in gravity signal transduction within the statocytes...
  91. pmc A hormonal regulatory module that provides flexibility to tropic responses
    Javier Gallego-Bartolome
    Instituto de Biologia Molecular y Celular de Plantas, 46022 Valencia, Spain
    Plant Physiol 156:1819-25. 2011
    ..This suggests that the interplay between auxin and GAs may be particularly important for plant orientation under competing tropic stimuli...
  92. ncbi The eer5 mutation, which affects a novel proteasome-related subunit, indicates a prominent role for the COP9 signalosome in resetting the ethylene-signaling pathway in Arabidopsis
    Matthew J Christians
    Department of Biochemistry, University of California, Riverside, CA 92521, USA
    Plant J 55:467-77. 2008
    ....
  93. ncbi The role of wall Ca2+ in the regulation of wall extensibility during the acid-induced extension of soybean hypocotyl cell walls
    Naofumi Ezaki
    Division of Biological Science, Graduate School of Science, Nagoya University, Furo cho, Chikusa ku, Japan
    Plant Cell Physiol 46:1831-8. 2005
    ..These findings suggest that wall Ca(2+) plays an important role in the regulation of wall extensibility during the acid-induced wall extension by reacting with carboxyl groups of wall pectin...
  94. ncbi LHY and CCA1 are partially redundant genes required to maintain circadian rhythms in Arabidopsis
    Tsuyoshi Mizoguchi
    John Innes Centre, Colney Lane, Norwich NR4 7UH, United Kingdom
    Dev Cell 2:629-41. 2002
    ..We conclude that LHY and CCA1 appear to be negative regulatory elements required for central oscillator function...
  95. ncbi The Arabidopsis ELF3 gene regulates vegetative photomorphogenesis and the photoperiodic induction of flowering
    M T Zagotta
    Institute of Molecular Biology, University of Oregon, Eugene 97403, USA
    Plant J 10:691-702. 1996
    ..been characterized elf3 mutants are also altered in several aspects of vegetative photomorphogenesis, including hypocotyl elongation...
  96. ncbi Circadian-controlled basic/helix-loop-helix factor, PIL6, implicated in light-signal transduction in Arabidopsis thaliana
    Toru Fujimori
    Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University, Chikusa ku, Nagoya, 464 8601 Japan
    Plant Cell Physiol 45:1078-86. 2004
    ..g., elongation of hypocotyls in de-etiolation). Taken together, PIL6 might function at an interface between the circadian clock and red light-signal transduction pathways...
  97. ncbi Identification of flooding stress responsible cascades in root and hypocotyl of soybean using proteome analysis
    Setsuko Komatsu
    National Institute of Crop Science, Kannondai 2 1 18, Tsukuba 305 8518, Japan
    Amino Acids 38:729-38. 2010
    ..Proteins were extracted from root and hypocotyl, separated by two-dimensional polyacrylamide gel electrophoresis, stained by Coomassie brilliant blue, and ..
  98. ncbi Dimers of the N-terminal domain of phytochrome B are functional in the nucleus
    Tomonao Matsushita
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo ku, Kyoto 606 8502, Japan
    Nature 424:571-4. 2003
    ..These findings indicate that the C-terminal domain attenuates the activity of phyB rather than positively transducing the signal...
  99. pmc Auxin transport through PIN-FORMED 3 (PIN3) controls shade avoidance and fitness during competition
    Diederik H Keuskamp
    Plant Ecophysiology, Institute of Environmental Biology, Utrecht University, 3584 CH, Utrecht, The Netherlands
    Proc Natl Acad Sci U S A 107:22740-4. 2010
    ..Seedlings of the pin3-3 mutant lack this low R:FR-induced increase of endogenous auxin in the hypocotyl and, accordingly, have no elongation response to low R:FR...
  100. ncbi ydk1-D, an auxin-responsive GH3 mutant that is involved in hypocotyl and root elongation
    Tomoyuki Takase
    Graduate School of Integrated Science, Yokohama City University, 22 2 Seto, Kanazawaku, Yokohama, Kanagawa 236 0027, Japan
    Plant J 37:471-83. 2004
    ..ydk1-D is dominant and has a short hypocotyl not only in light but also in darkness...
  101. ncbi Hormonal regulation of temperature-induced growth in Arabidopsis
    Jon A Stavang
    Department of Plant and Environmental Sciences, Norwegian University of Life Sciences, N1432 As, Norway
    Plant J 60:589-601. 2009
    ..We have investigated the interplay between ambient temperature and hormone action during the regulation of hypocotyl elongation, and we have found that gibberellins (GAs) and auxin are quickly and independently recruited by ..

Research Grants7

  1. Auxin Biosynthesis and Signaling Mechanisms
    Yunde Zhao; Fiscal Year: 2012
    ..NPY1 belongs to a large family and is homologous to non-phototropic hypocotyl 3 (NPH3), a BTB protein regulating phototropism along with the AGC kinase PHOT1...
  2. GENETIC DISSECTION OF PHYTOCHROME B SIGNALLING
    Jason Reed; Fiscal Year: 1999
    ..Screens for mutations that suppress or enhance the long hypocotyl phenotype of a phyB mutant will identify genes whose products function downstream in phytochrome B signal ..
  3. SHY2/IAA3 in auxin regulation of plant development
    Jason Reed; Fiscal Year: 2006
    ..These experiments will help us understand how auxin regulates development in a model system, and will in the future allow manipulation of morphology of crop plants in ways beneficial to human health. ..
  4. Roles of the SKU genes in directional cell expansion
    JOHN SEDBROOK; Fiscal Year: 2003
    ..They should also provide insights into mechanisms that control microtubule assembly and stability. ..
  5. Molecular Targets of Novel Antifungal Compounds
    Ameeta Agarwal; Fiscal Year: 2008
    ..This work will provide a starting point in the development of new antifungal therapies. [unreadable] [unreadable] [unreadable]..
  6. Molecular Mechanisms of Natural Variation in Arabidopsis
    Joanne Chory; Fiscal Year: 2008
    ..thaliana. These studies will set the stage for future, larger-scale investigations. ..
  7. Activation of Maternal mRNA in Early Development
    Keith Hutchison; Fiscal Year: 2004
    ..In addition, we will exam the role of a novel form of a major translation control protein, elF4E, in this process. ..