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- Title
Coordinate expression of light-harvesting chlorophyll a/ b gene family of photosystem II and chlorophyll a oxygenase gene regulated by salt-induced phosphorylation in Dunaliella salina.
- Authors
Chen, W.; Jin, N.; Shi, Y.; Su, Y.; Fei, B.; Li, W.; Qiao, D.; Cao, Y.
- Abstract
a stress factor, salt induces the phosphorylation of light-harvesting chlorophyll (Chl) a/b proteins (LHCII) in Dunaliella salina. In this study, we found that the salt-induced phosphorylation of LHCII was not affected by phosphatase, and that salt simultaneously regulated both the phosphorylation of LHCII and the expression of genes encoding light-harvesting Chl a/b proteins of photosystem II ( lhcb) and the gene encoding Chl a oxygenase ( cao) in dark-adapted D. salina. The mRNA accumulation patterns of lhcb and cao were similar, which further affected the size of LHCII and the ratio of Chl a to Chl b. Therefore, we inferred this simultaneous regulation is one of the mechanisms of D. salina to adapt to the high-salinity environment.
- Subjects
CHLOROPHYLL; OXYGENASES; PLANT phosphorylation; EFFECT of solar radiation on plants; PLANT proteins; SOIL salinity; PHOSPHATASES
- Publication
Photosynthetica, 2010, Vol 48, Issue 3, p355
- ISSN
0300-3604
- Publication type
Article
- DOI
10.1007/s11099-010-0046-z