+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Genetic Evidence That the Red-Absorbing Form of Phytochrome B Modulates Gravitropism in Arabidopsis thaliana



Genetic Evidence That the Red-Absorbing Form of Phytochrome B Modulates Gravitropism in Arabidopsis thaliana



Plant Physiology 103(1): 15-19



Hypocotyls of dark-grown Arabidopsis seedlings exhibit strong negative gravitropism, whereas in red light, gravitropism is strongly reduced. Red/far-red light-pulse experiments and analysis of specific phytochrome-deficient mutants indicate that the red-absorbing (Pr) form of phytochrome B regulates normal hypocotyl gravitropism in darkness, and depletion of Pr by photoconversion to the far-red-absorbing form attenuates hypocotyl gravitropism. These studies provide genetic evidence that the Pr form of phytochrome has an active function in plant development.

(PDF emailed within 0-6 h: $19.90)

Accession: 002390900

Download citation: RISBibTeXText

PMID: 12231913

DOI: 10.2307/4275350


Related references

Evidence that a mustard seedling sinapis alba responds to the amount of far red absorbing form of phytochrome and not the far red absorbing form of phytochrome to total phytochrome ratio. Plant Cell & Environment 5(6): 495-500, 1982

Phytochrome A enhances the promotion of hypocotyl growth caused by reductions in levels of phytochrome B in its far-red-light-absorbing form in light-grown Arabidopsis thaliana. Plant Physiology 112(3): 965-973, 1996

Genetic evidence that the endodermis is essential for shoot gravitropism in Arabidopsis thaliana. Plant Journal 14(4): 425-430, 1998

The role of phytochrome C in gravitropism and phototropism in Arabidopsis thaliana. Functional Plant Biology 35(4): 298-305, 2008

Thermal induction of high sensitivity to phytochrome far red absorbing form in lettuce lactuca sativa cultivar grand rapids seed germination may involve loss of phytochrome red absorbing form receptor site interactions. Plant Physiology (Rockville) 65(6SUPPL): 3, 1980

Creation of symmetric and asymmetric phytochrome for red absorbing form gradients in mougeotia cells and the effect of these phytochrome for red absorbing form gradients on chloroplast orientation. Berichte der Deutschen Botanischen Gesellschaft 92(2-3): 297-304, 1980

Evidence that far red absorbing phytochrome is not the active form of phytochrome in light grown maize zea mays cultivar john innes. Nature (London) 293(5828): 163-165, 1981

The capacity of the red absorbing form of phytochrome in vitro to photo convert to the long wavelength far red absorbing form a survey of 10 plant species. Photochemistry & Photobiology 36(1): 79-82, 1982

Laser flash photolysis study on photo transformation of undegraded pea phytochrome from far red absorbing form to red absorbing form. Plant Physiology (Rockville) 67(4 SUPPL): 132, 1981

SGR1, SGR2, and SGR3: Novel genetic loci involved in shoot gravitropism in Arabidopsis thaliana. Plant Physiology (Rockville) 110(3): 945-955, 1996

SGR1, SGR2, SGR3: novel genetic loci involved in shoot gravitropism in Arabidopsis thaliana. Plant Physiology 110(3): 945-955, 1996

Phototransformation of oat avena sativa phytochrome with millisecond and submillisecond flashes the level of the photostationary far red absorbing form of phytochrome to total amount of phytochrome ratio is modified by photoreversible intermediates. Physiologia Plantarum 65(4): 513-519, 1985

Phototransformation of the red light absorbing form to the far red light absorbing form of phytochrome in pea pisum sativum epicotyl tissue measured by a multichannel transient spectrum analyzer. Plant & Cell Physiology 26(5): 813-820, 1985

Orientation of the chromophore transition moment in the 4-leaved shape model for pea phytochrome molecule in the red-light absorbing form and its rotation induced by the phototransformation to the far-red-light absorbing form. FEBS Letters 255(2): 350-353, 1989

Phototransformation of the red-light-absorbing form to the far-red-light-absorbing form of phytochrome in pea epicotyl tissue measured by a multichannel transient spectrum analyser. Plant and Cell Physiology 26(5): 813-819, 1985