Red Light-Independent Instability of Oat Phytochrome mRNA in Vivo.
- 1 January 1992
- journal article
- Published by Oxford University Press (OUP) in Plant Cell
- Vol. 4 (1) , 29-38
- https://doi.org/10.1105/tpc.4.1.29
Abstract
Phytochrome A (phyA) mRNA abundance decreased rapidly in total RNA samples isolated from 4-day-old etiolated oat seedlings following a red light pulse. Putative in vivo phyA mRNA degradation products were detectable both before and after red light treatment. Cordycepin-treated coleoptiles were unable to accumulate the chlorophyll a/b-binding protein mRNA in response to red light, indicating that cordycepin effectively inhibited mRNA synthesis. In cordycepin-treated coleoptiles, phyA mRNA rapidly decreased in abundance, consistent with the hypothesis that phyA mRNA is inherently unstable, rather than being destabilized after red light treatment of etiolated oat seedlings.Keywords
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