Linked Life Data

14988482

Source:http://linkedlifedata.com/resource/pubmed/id/14988482

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-2-27
pubmed:abstractText
Allene oxide synthase (AOS) is a key enzyme for the biosynthesis of jasmonic acid (JA). We identified four AOS gene homologs, named OsAOS1-4, in the database of a japonica rice genome and cloned a full-length cDNA of OsAOS1. The analysis of deduced amino acid sequences indicated that only OsAOS1 has a chloroplast transit peptide among all the identified monocot AOSs including OsAOSs. We found that the transcripts of OsAOS1 and OsAOS4 are up-regulated by red and far-red light in seedling shoots. The response in OsAOS1 transcripts occurred rapidly and transiently, while the response in OsAOS4 transcripts was slower and more sustainable; the maximal enhancement was greater in OsAOS1 transcripts than in OsAOS4 transcripts. The transcript of OsAOS1 was also up-regulated transiently in response to wounding, as reported for dicot AOSs. No wound-induced enhancement occurred, however, in OsAOS4 transcripts. Our results also indicated that OsAOS1, responding to both light and wounding, is the most highly expressed of all the OsAOSs in seedling shoots. By using phyA mutants of rice, it was demonstrated that the photoregulation of the AOS transcript level is mediated by phytochrome. It is suggested that this transcriptional photoregulation participates in the phytochrome-mediated inhibition of rice coleoptile growth.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0032-0781
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
119-28
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Phytochrome-mediated transcriptional up-regulation of ALLENE OXIDE SYNTHASE in rice seedlings.
pubmed:affiliation
Botanical Gardens, Research School of Science, Osaka City University, Kisaichi, Katano-shi, Osaka, 576-0004 Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't