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A potential role for RNA turnover in the light regulation of plant gene expression: ribulose-1,5-bisphosphate carboxylase small subunit in soybean.
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MedLine Citation:
PMID:  2356127     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Post-transcriptional regulation of the genes encoding the small subunit (rbcS) of ribulose-1,5-bisphosphate carboxylase was examined in soybean seedlings. Substantial discrepancies were detected between relative in vitro transcription rates and steady-state RNA levels in light- and dark-grown seedling leaves, indicating that rbcS RNA may be degraded more rapidly in light than in darkness. Additional data imply that the turnover mechanism is rapidly induced by light, maintained for some time in darkness, and that it may be negatively controlled by far-red light. The proposed RNA turnover system does not affect all RNAs equally since a soybean actin gene showed equivalent in vitro transcription rates and RNA levels in light and darkness. Soybean rbcS genes may be subject to a novel mode of control in which light-induced expression is accompanied by an increased rate of RNA degradation. Models for the specific regulation of rbcS RNA stability in response to light are presented.
Authors:
B W Shirley; R B Meagher
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Nucleic acids research     Volume:  18     ISSN:  0305-1048     ISO Abbreviation:  Nucleic Acids Res.     Publication Date:  1990 Jun 
Date Detail:
Created Date:  1990-07-25     Completed Date:  1990-07-25     Revised Date:  2010-09-10    
Medline Journal Info:
Nlm Unique ID:  0411011     Medline TA:  Nucleic Acids Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  3377-85     Citation Subset:  IM    
Affiliation:
Department of Genetics, University of Georgia, Athens 30602.
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MeSH Terms
Descriptor/Qualifier:
Blotting, Western
Gene Expression Regulation, Enzymologic*
Genes, Plant
Kinetics
Light*
RNA Processing, Post-Transcriptional*
Ribulose-Bisphosphate Carboxylase / genetics*
Soybeans / enzymology,  genetics*
Transcription, Genetic
Chemical
Reg. No./Substance:
EC 4.1.1.39/Ribulose-Bisphosphate Carboxylase
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Full Text
Journal Information
Journal ID (nlm-ta): Nucleic Acids Res
ISSN: 0305-1048
ISSN: 1362-4962
Article Information
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Print publication date: Day: 11 Month: 6 Year: 1990
Volume: 18 Issue: 11
First Page: 3377 Last Page: 3385
ID: 330947
PubMed Id: 2356127

A potential role for RNA turnover in the light regulation of plant gene expression: ribulose-1,5-bisphosphate carboxylase small subunit in soybean.
B W Shirley
R B Meagher
Department of Genetics, University of Georgia, Athens 30602.



Article Categories:
  • Research Article


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