Photosystem 2-activity and thylakoid membrane polypeptides of in vitro cultured chrysanthemum as affected by NaCl

被引:9
|
作者
Pandey, D. M. [1 ]
Choi, I. [2 ]
Yeo, U. -D. [1 ]
机构
[1] Chonbuk Natl Univ, Fac Biol Sci, Jeonju 561756, South Korea
[2] Jeollabukdo Agr Res & Extens Serv, Iksan 570704, South Korea
关键词
Dendranthema grandiflorum; D1; protein; electron transport rate; low irradiance; salt stress; INDUCED INACTIVATION; EXTRINSIC PROTEINS; SALINITY-STRESS; CHLOROPHYLL-A; II COMPLEXES; SALT STRESS; PHOTOSYNTHESIS; GROWTH; REPAIR; LEAVES;
D O I
10.1007/s10535-009-0060-9
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Long-term (30 d) effects of 100, 200, 300, and 400 mM NaCl on photosystem 2 (PS 2)-mediated electron transport activity and content of D1 protein in the thylakoid membranes of chrysanthemum (Dendranthema grandiflorum) cultured in vitro at low irradiance 20 A mu mol(photon) m(-2) s(-1) were investigated. 100 mM NaCl increased contents of chlorophylls (Chl) a and b, carotenoids (Car; xanthophylls + carotenes), and the ratio of Chl a/b, and Car/Chl a+b. However, further increase in NaCl concentration led to the significant reduction in the contents of Chl a, and Chl b, and increase in the ratio of Chl a/b and Car/Chl a+b. NaCl treatment decreased the PS 2-mediated electron transport activity and contents of various thylakoid membrane polypeptides including D1 protein.
引用
收藏
页码:329 / 333
页数:5
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