NDLI: A potential role for RNA turnover in the light regulation of plant gene expression: ribulose-1,5-bisphosphate carboxylase small subunit in soybean.

Content Provider	PubMed Central
Author	Shirley, B. W. Meagher, R. B.
Abstract	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.
Starting Page	3377
File Format	PDF
ISSN	13624962
e-ISSN	13624962
Journal	Nucleic Acids Research
Issue Number	11
Volume Number	18
Language	English
Publisher Date	1990-06-11
Access Restriction	Open
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Genetics

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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.