Genetic separation of phototropism from blue light inhibition of hypocotyl elongation on Arabidopsis

Liscum, E; Young, J C; Hangarter, R P; Poff, K L

Title: Genetic separation of phototropism from blue light inhibition of hypocotyl elongation on Arabidopsis

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Abstract

Phototropism and inhibition of stem elongation occur in response to blue light-induced inhibition of cell elongation. However, phototropism is a low fluence response and inhibition of hypocotyl elongation is a high irradiance response. The authors have isolated several mutant lines of Arabidopsis which lack blue light-induced inhibition of hypocotyl elongation but retain normal phototropic functions. In addition, a mutant line which completely lacks the phototropic response retains normal blue light-induced inhibition of hypocotyl elongation. F1 progeny of crosses between these two mutant classes exhibited wild-type phototropism and inhibition of hypocotyl elongation in response to blue light stimuli. In the F2 generation, one in sixteen seedlings were double mutants lacking both phototropism and blue light-induced hypocotyl growth inhibition. These studies conclusively show that blue light-induced phototropism and hypocotyl growth inhibition function through genetically distinct signal transduction or response systems.

Authors:

Liscum, E; Young, J C; Hangarter, R P ^[1]; Poff, K L ^[2]

Ohio State Univ., Columbus (United States)
Michigan State Univ. Plant Research Lab., East Lansing (United States)

Publication Date:: Wed May 01 00:00:00 EDT 1991

OSTI Identifier:: 5401701

Report Number(s):: CONF-9107184-
Journal ID: ISSN 0079-2241; CODEN: PPYSA

Resource Type:: Conference

Journal Name:: Plant Physiology, Supplement; (United States)

Additional Journal Information:: Journal Volume: 96:1; Conference: Annual meeting of the American Society of Plant Physiology, Albuquerque, NM (United States), 28 Jul - 1 Aug 1991; Journal ID: ISSN 0079-2241

Country of Publication:: United States

Language:: English

Subject:: 59 BASIC BIOLOGICAL SCIENCES; ARABIDOPSIS; PHYSIOLOGY; GENETICS; MUTANTS; PHOTOCHEMICAL REACTIONS; PLANT GROWTH; VISIBLE RADIATION; BIOLOGY; CHEMICAL REACTIONS; ELECTROMAGNETIC RADIATION; GROWTH; MAGNOLIOPHYTA; MAGNOLIOPSIDA; PLANTS; RADIATIONS; 551000* - Physiological Systems

Citation Formats


                    Liscum, E, Young, J C, Hangarter, R P, and Poff, K L. Genetic separation of phototropism from blue light inhibition of hypocotyl elongation on Arabidopsis.  United States: N. p., 1991. 
        Web.

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                    Liscum, E, Young, J C, Hangarter, R P, & Poff, K L. Genetic separation of phototropism from blue light inhibition of hypocotyl elongation on Arabidopsis.  United States.

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                    Liscum, E, Young, J C, Hangarter, R P, and Poff, K L. 1991.  
        "Genetic separation of phototropism from blue light inhibition of hypocotyl elongation on Arabidopsis".  United States.

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@article{osti_5401701,

  title        = {Genetic separation of phototropism from blue light inhibition of hypocotyl elongation on Arabidopsis},

  author       = {Liscum, E and Young, J C and Hangarter, R P and Poff, K L},

  abstractNote = {Phototropism and inhibition of stem elongation occur in response to blue light-induced inhibition of cell elongation. However, phototropism is a low fluence response and inhibition of hypocotyl elongation is a high irradiance response. The authors have isolated several mutant lines of Arabidopsis which lack blue light-induced inhibition of hypocotyl elongation but retain normal phototropic functions. In addition, a mutant line which completely lacks the phototropic response retains normal blue light-induced inhibition of hypocotyl elongation. F1 progeny of crosses between these two mutant classes exhibited wild-type phototropism and inhibition of hypocotyl elongation in response to blue light stimuli. In the F2 generation, one in sixteen seedlings were double mutants lacking both phototropism and blue light-induced hypocotyl growth inhibition. These studies conclusively show that blue light-induced phototropism and hypocotyl growth inhibition function through genetically distinct signal transduction or response systems.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/5401701},
  journal      = {Plant Physiology, Supplement; (United States)},

  issn         = {0079-2241},

  number       = ,

  volume       = 96:1,

  place        = {United States},

  year         = {Wed May 01 00:00:00 EDT 1991},

  month        = {Wed May 01 00:00:00 EDT 1991}

}

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