摘要
通过测量快速光曲线研究了强光和弱光驯化对蛋白核小球藻(Chlorellapyrenoidosa)光合作用的影响。弱光驯化后的初始斜率α高于强光驯化后,而半饱和光强Ik明显低于强光驯化后,表明弱光驯化提高了蛋白核小球藻的捕光能力。强光驯化后最大光合速率Pm高于弱光驯化后,而光抑制参数β小于弱光驯化后,表明强光驯化提高了蛋白核小球藻的光合能力和对强光的耐受性。
Effects of high light （HL） acclimation and low light （LL） acclimation on photosynthesis of Chlorella pyrenoidosa were investigated by measuring rapid light curves with Pulse-Amplitude Modulation Fluorometer. After LL acclimation, α increased while Ik decreased, which indicated the light-harvesting rate increased after LL acclimation. After HL acclimation, Pm increased while [3 decreased, which suggested maximal photosynthetic rate and high light tolerance can be improved after HL acclimation.
出处
《生态科学》
CSCD
2006年第1期32-33,共2页
Ecological Science
基金
国家"863"计划项目(2002AA515030)
广东省科技攻关项目(2004B33401002)
暨南大学博士学位论文创新项目
关键词
光驯化
快速光曲线
蛋白核小球藻
Photoacclimation
Rapid light curves
Chlorellapyrenoidos
