rdf:type |
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lifeskim:mentions |
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pubmed:issue |
3
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pubmed:dateCreated |
2002-3-13
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pubmed:abstractText |
EID1 (empfindlicher im dunkelroten Licht) and SPA1 (suppressor of phytochrome A[phyA]-105) function as negatively acting components in phyA-specific light signaling. Mutants in the respective genes led to very similar phenotypes under weak-light conditions. To examine whether both genes are functionally redundant, detailed physiological and genetic analyses were performed with eid1 and spa1 mutants isolated from the same wild-type background. Measurements of hypocotyl elongation, anthocyanin accumulation, and Lhcb1-transcript accumulation under different light treatments demonstrated that SPA1 has a strong influence on the regulation of very low fluence responses and a weaker influence on high-irradiance responses. In contrast, EID1 severely altered high-irradiance responses and caused almost no change on very low fluence responses. Analyses on eid1 phyA-105 double mutants demonstrated that EID1 could not suppress the phenotype of the weak phyA allele under continuous far-red light. Measurements on eid1 spa1 double mutants exhibited a strong interference of both genes in the regulation of hypocotyl elongation. These results indicate that EID1 and SPA1 are involved in different but interacting phyA-dependent signal transduction chains.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10205059,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10417700,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10444599,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10673498,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10760243,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10806240,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10817761,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10849336,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10899984,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10921909,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-10995393,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-11090209,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-11115873,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-11148292,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-11260499,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-11316788,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-11457980,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-11711433,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-8106085,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-8364355,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-8589627,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-9351250,
http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-9477570,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/11891264-9881161
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Anthocyanins,
http://linkedlifedata.com/resource/pubmed/chemical/Arabidopsis Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/CAB1 protein, Arabidopsis,
http://linkedlifedata.com/resource/pubmed/chemical/Carrier Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Cell Cycle Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Chlorophyll,
http://linkedlifedata.com/resource/pubmed/chemical/DNA-Binding Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/EID1 protein, Arabidopsis,
http://linkedlifedata.com/resource/pubmed/chemical/F-Box Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Light-Harvesting Protein Complexes,
http://linkedlifedata.com/resource/pubmed/chemical/Nuclear Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/PHYA protein, Arabidopsis,
http://linkedlifedata.com/resource/pubmed/chemical/Photosynthetic Reaction Center...,
http://linkedlifedata.com/resource/pubmed/chemical/Photosystem II Protein Complex,
http://linkedlifedata.com/resource/pubmed/chemical/Phytochrome,
http://linkedlifedata.com/resource/pubmed/chemical/Phytochrome A,
http://linkedlifedata.com/resource/pubmed/chemical/Plant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/SPA1 protein, Arabidopsis
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0032-0889
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:volume |
128
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1098-108
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
pubmed-meshheading:11891264-Alleles,
pubmed-meshheading:11891264-Anthocyanins,
pubmed-meshheading:11891264-Arabidopsis,
pubmed-meshheading:11891264-Arabidopsis Proteins,
pubmed-meshheading:11891264-Carrier Proteins,
pubmed-meshheading:11891264-Cell Cycle Proteins,
pubmed-meshheading:11891264-Chlorophyll,
pubmed-meshheading:11891264-Crosses, Genetic,
pubmed-meshheading:11891264-DNA-Binding Proteins,
pubmed-meshheading:11891264-F-Box Proteins,
pubmed-meshheading:11891264-Hypocotyl,
pubmed-meshheading:11891264-Light,
pubmed-meshheading:11891264-Light-Harvesting Protein Complexes,
pubmed-meshheading:11891264-Mutation,
pubmed-meshheading:11891264-Nuclear Proteins,
pubmed-meshheading:11891264-Photosynthetic Reaction Center Complex Proteins,
pubmed-meshheading:11891264-Photosystem II Protein Complex,
pubmed-meshheading:11891264-Phytochrome,
pubmed-meshheading:11891264-Phytochrome A,
pubmed-meshheading:11891264-Plant Proteins,
pubmed-meshheading:11891264-Signal Transduction
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pubmed:year |
2002
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pubmed:articleTitle |
The negatively acting factors EID1 and SPA1 have distinct functions in phytochrome A-specific light signaling.
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pubmed:affiliation |
Albert-Ludwigs-Universität Freiburg, Institut für Biologie 2/Botanik, Schänzlestrasse 1, D-79104 Freiburg, Germany.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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