Predicting the extent of photosystem II photoinactivation using chlorophyll a fluorescence parameters measured during illumination

被引：21

作者：

Kornyeyev, D

Holaday, S

Logan, B ^{[1
]}

机构：

[1] Bowdoin Coll, Dept Biol, Brunswick, ME 04011 USA

[2] Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA

[3] Inst Plant Physiol & Genet, UA-03022 Kiev, Ukraine

来源：

PLANT AND CELL PHYSIOLOGY | 2003年 / 44卷 / 10期

关键词：

cotton; Gossypium hirsutum L; photoinhibition; photosystem II; repair;

D O I：

10.1093/pcp/pcg129

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The temperature dependence of the relationship between the decline in activity of photosystem II (PSII) and a chlorophyll a fluorescence parameter combining the excitation pressure (1-q(p)) and efficiency of excitation energy capture by open PSII reaction centers in the light-acclimated state (F-v'/F-m') was investigated in cotton leaves. A formula for the prediction of PSII inactivation is proposed on the basis of the results obtained. By comparison of the predicted and actual levels of PSII photoinactivation, the rate of PSII recovery was estimated from chlorophyll a fluorescence parameters measured during the day for attached cotton leaves exposed to suboptimal morning temperatures in a greenhouse.

引用

页码：1064 / 1070

页数：7

共 45 条

[1] Rapid changes in xanthophyll cycle-dependent energy dissipation and photosystem II efficiency in two vines, Stephania japonica and Smilax australis, growing in the understory of an open Eucalyptus forest [J].