Journal
PHOTOSYNTHESIS RESEARCH
Volume 98, Issue 1-3, Pages 415-425Publisher
SPRINGER
DOI: 10.1007/s11120-008-9378-y
Keywords
Alexandrium; Chlorophyll fluorescence; Hydropathy plot; psbA/D; Symbiodinium; Synechocystis sp PCC6803
Categories
Funding
- Japan Society for the Promotion of Science [17GS0314]
- Kurita Water and Environment Foundation
Ask authors/readers for more resources
Plastid encoded genes of the dinoflagellates are rapidly evolving and most divergent. The importance of unusually accumulated mutations on structure of PSII core protein and photosynthetic function was examined in the dinoflagellates, Symbiodinium sp. and Alexandrium tamarense. Full-length cDNA sequences of psbA (D1 protein) and psbD (D2 protein) were obtained and compared with the other oxygen-evolving photoautotrophs. Twenty-three amino acid positions (7%) for the D1 protein and 34 positions (10%) for the D2 were mutated in the dinoflagellates, although amino acid residues at these positions were conserved in cyanobacteria, the other algae, and plant. Many mutations were likely to distribute in the N-terminus and the D-E interhelical loop of the D1 protein and helix B of D2 protein, while the remaining regions were well conserved. The different structural properties in these mutated regions were supported by hydropathy profiles. The chlorophyll fluorescence kinetics of the dinoflagellates was compared with Synechocystis sp. PCC6803 in relation to the altered protein structure.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available