Linked Life Data

14634161

Source:http://linkedlifedata.com/resource/pubmed/id/14634161

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2003-11-24
pubmed:abstractText
In Arabidopsis thaliana, a number of circadian-associated factors have been identified, including TOC1 (TIMING OF CAB EXPRESSION 1) that is believed to be a component of the central oscillator. TOC1 is a member of a small family of proteins, designated as ARABIDOPSIS PSEUDO-RESPONSE REGULATORS (APRR1/TOC1, APRR3, APRR5, APRR7, and APRR9). As demonstrated previously, these APRR1/TOC1 quintet members are crucial for a better understanding of the molecular links between circadian rhythms, control of flowering time through photoperiodic pathways, and also photosensory signal transduction in this dicotyledonous plant. In this respect, both the dicotyledonous (e.g. A. thaliana) and monocotyledonous (e.g. Oryza sativa) plants might share the evolutionarily conserved molecular mechanism underlying the circadian rhythm. Based on such an assumption, and as the main objective of this study, we asked the question of whether rice also has a set of pseudo-response regulators, and if so, whether or not they are associated with the circadian rhythm. Here we showed that rice has five members of the OsPRR family (Oryza sativa Pseudo-Response Regulator), and also that the expressions of these OsPRR genes are under the control of circadian rhythm. They are expressed in a diurnal and sequential manner in the order of OsPRR73 (OsPRR37)-->OsPRR95 (OsPRR59)-->OsPRR1, which is reminiscent of the circadian waves of the APRR1/TOC1 quintet in A. thaliana. These and other results of this study suggested that the OsPRR quintet, including the ortholog of APRR1/TOC1, might play important roles within, or close to, the circadian clock of rice.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0032-0781
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1229-36
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
The evolutionarily conserved OsPRR quintet: rice pseudo-response regulators implicated in circadian rhythm.
pubmed:affiliation
Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University, Chikusa-ku, Nagoya, 464-8601 Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't