Red Light-Independent Instability of Oat Phytochrome mRNA in Vivo.
AUTOR(ES)
Seeley, KA
RESUMO
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.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=160103Documentos Relacionados
- Initial characterization of a pea mutant with light-independent photomorphogenesis.
- Light-independent developmental regulation of cab gene expression in Arabidopsis thaliana seedlings.
- Light-independent chlorophyll biosynthesis: involvement of the chloroplast gene chlL (frxC).
- A chloroplast gene is required for the light-independent accumulation of chlorophyll in Chlamydomonas reinhardtii.
- yellow-in-the-dark Mutants of Chlamydomonas Lack the CHLL Subunit of Light-Independent Protochlorophyllide Reductase
