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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
10
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pubmed:dateCreated |
2008-12-5
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pubmed:abstractText |
It has been known for decades that red light pretreatment has complex effects on subsequent phototropic sensitivity of etiolated seedlings. Here, we demonstrate that brief pulses of red light given 2 h prior to phototropic induction by low fluence rates of blue light prevent the blue light-induced loss of green fluorescent protein-tagged phototropin 1 (PHOT1-GFP) from the plasma membrane of cortical cells of transgenic seedlings of Arabidopsis thaliana expressing PHOT1-GFP in a phot1-5 null mutant background. This red light effect is mediated by phytochrome A and requires approximately 2 h in the dark at room temperature to go to completion. It is fully far red reversible and shows escape from photoreversibility following 30 min of subsequent darkness. Red light-induced inhibition of blue light-inducible changes in the subcellular distribution of PHOT1-GFP is only observed in rapidly elongating regions of the hypocotyl. It is absent in hook tissues and in mature cells below the elongation zone. We hypothesize that red light-induced retention of the PHOT1-GFP on the plasma membrane may account for the red light-induced increase in phototropic sensitivity to low fluence rates of blue light.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-10348744,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-11371609,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-11537487,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-11537724,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-11537887,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-12172018,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-12857830,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-14615593,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-16507089,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-16655780,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-16656463,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-16661745,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-16777956,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-17085510,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-18257712,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-7773019,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-8453299,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-8587979,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-9085579,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-9405347,
http://linkedlifedata.com/resource/pubmed/commentcorrection/18952772-9831559
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
1040-4651
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
20
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2835-47
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pubmed:dateRevised |
2010-9-22
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pubmed:meshHeading |
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pubmed:year |
2008
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pubmed:articleTitle |
Phytochrome A regulates the intracellular distribution of phototropin 1-green fluorescent protein in Arabidopsis thaliana.
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pubmed:affiliation |
Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Korea.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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