Transient Down-Regulation of Phytochrome mRNA Abundance in Etiolated Cucumber Cotyledons in Response to Continuous White Light 1

Phytochrome mRNA abundance decreased to 20% of the initial level in etiolated cucumber ( Cucumis sativus L.) cotyledons exposed to continuous white light. Unexpectedly, by 12 hours of continuous white light, phytochrome mRNA had reaccumulated to 60% of the control level. High stringency RNA blot ana...

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Bibliographic Details
Published in:Plant physiology (Bethesda) 1991-12, Vol.97 (4), p.1581-1584
Main Authors: Tirimanne, T. Shamala, Colbert, James T.
Format: Article
Language:English
Subjects:
Molecular Biology and Gene Regulation
Online Access:Get full text
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Summary:Phytochrome mRNA abundance decreased to 20% of the initial level in etiolated cucumber ( Cucumis sativus L.) cotyledons exposed to continuous white light. Unexpectedly, by 12 hours of continuous white light, phytochrome mRNA had reaccumulated to 60% of the control level. High stringency RNA blot analyses suggest that it is the mRNA encoding type I phytochrome that reaccumulates.
ISSN:0032-0889
1532-2548