Effects of NaCl stress on photochemical activity and thylakoid membrane polypeptide composition of a salt-tolerant and a salt-sensitive rice cultivar |
| |
Authors: | R. L. Wang C. Hua F. Zhou Q.-C. Zhou |
| |
Affiliation: | (1) Jiangsu Food Science College, Huaian, 223003, P. R. China;(2) Life Science Department of Nanjing Xiaozhuang College, Nanjing, 211171, P. R. China |
| |
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. |
| |
Keywords: | KeywordHeading" >Additional electron transport activity Oryza polypeptides photosystems 1 and 2 |
本文献已被 SpringerLink 等数据库收录! |