Source:http://linkedlifedata.com/resource/pubmed/id/18838801
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
10
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| pubmed:dateCreated |
2008-10-23
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| pubmed:abstractText |
More than 1,600 genes encoding transcription factors have been identified in the Arabidopsis genome sequence, but their physiological functions are not yet fully understood. In this study, a small subfamily of single-MYB transcription factor genes, designated RSM1, RSM2, RSM3 and RSM4 (RADIALIS-LIKE SANT/MYB 1-4), was characterized. Here, we mainly examined the RSM1 gene, and found that it appears to play a role in close connection with the HLS1 (HOOKLESS 1) gene during early morphogenesis. Etiolated seedlings overexpressing RSM1 showed several phenotypes similar to those of hls1-1, viz., lack of apical hooks with short hypocotyls, and a defect in gravitropism. Furthermore, both RSM1-ox and hls1-1 seedlings were hypersensitive to red light during early photomorphogenesis, displaying shorter hypocotyls than wild-type seedlings. The histochemical profile of the DR5::GUS auxin-reporter in the RMS1-ox seedlings was considerably different from that in the wild-type seedlings. These results are discussed in the context of the possibility that RSM1 is implicated in HLS1-mediated auxin signaling, which is responsible for regulation of the early photomorphogenesis of Arabidopsis thaliana.
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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/Arabidopsis Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/DNA, Bacterial,
http://linkedlifedata.com/resource/pubmed/chemical/DNA, Plant,
http://linkedlifedata.com/resource/pubmed/chemical/Indoleacetic Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Phytochrome,
http://linkedlifedata.com/resource/pubmed/chemical/T-DNA,
http://linkedlifedata.com/resource/pubmed/chemical/Trans-Activators,
http://linkedlifedata.com/resource/pubmed/chemical/hookless1 protein, Arabidopsis
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| pubmed:status |
MEDLINE
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| pubmed:month |
Oct
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| pubmed:issn |
1347-6947
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| pubmed:author | |
| pubmed:issnType |
Electronic
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| pubmed:volume |
72
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
2687-96
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| pubmed:meshHeading |
pubmed-meshheading:18838801-Amino Acid Sequence,
pubmed-meshheading:18838801-Arabidopsis,
pubmed-meshheading:18838801-Arabidopsis Proteins,
pubmed-meshheading:18838801-DNA, Bacterial,
pubmed-meshheading:18838801-DNA, Plant,
pubmed-meshheading:18838801-Gene Expression,
pubmed-meshheading:18838801-Indoleacetic Acids,
pubmed-meshheading:18838801-Molecular Sequence Data,
pubmed-meshheading:18838801-Morphogenesis,
pubmed-meshheading:18838801-Mutation,
pubmed-meshheading:18838801-Phylogeny,
pubmed-meshheading:18838801-Phytochrome,
pubmed-meshheading:18838801-Seedling,
pubmed-meshheading:18838801-Sequence Alignment,
pubmed-meshheading:18838801-Sequence Homology, Amino Acid,
pubmed-meshheading:18838801-Signal Transduction,
pubmed-meshheading:18838801-Time Factors,
pubmed-meshheading:18838801-Trans-Activators
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| pubmed:year |
2008
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| pubmed:articleTitle |
A small subfamily of Arabidopsis RADIALIS-LIKE SANT/MYB genes: a link to HOOKLESS1-mediated signal transduction during early morphogenesis.
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| pubmed:affiliation |
Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University, Nagoya, Japan.
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| pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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