Abstract
NaCl stress (200 mM) inhibited the electron transport activity of photosystem 2 (PS2) more than that of PS1. The degree of electron transport activity inhibition was lower in the salt-tolerant cultivar Pokkali than in the salt-sensitive cultivar Peta. The polypeptide composition of the thylakoid membrane and PS2 particles did not change after NaCl treatment but there was a difference in polypeptide compositions of thylakoid membrane and PS2 particles between the two cultivars. PS2 particles of cv. Pokkali contained more 33-kDa and 43-kDa polypeptides than cv. Peta. Additionally, PS2 particles after NaCl treatment showed deficiency of 23-kDa outside polypeptides of PS2.
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Abbreviations
- Chl:
-
chlorophyll
- DCMU:
-
3-(3,4-dichlorophenyl)-1,1-dimethylurea
- DCPIP:
-
dichlorophenol indophenol
- MV:
-
methyl viologen
- PS:
-
photosystem
- SDS-PAGE:
-
sodium dodecyl sulphate polyacrylamide gel electrophoresis
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Wang, R.L., Hua, C., Zhou, F. et al. Effects of NaCl stress on photochemical activity and thylakoid membrane polypeptide composition of a salt-tolerant and a salt-sensitive rice cultivar. Photosynthetica 47, 125–127 (2009). https://doi.org/10.1007/s11099-009-0019-2
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DOI: https://doi.org/10.1007/s11099-009-0019-2