蛋白核小球藻光驯化的快速光曲线变化  

Photoacclimation of Chlorella pyrenoidosa:changes in rapid light curves

作　　者：韩志国[1] 欧阳昊[1] 林娴[1] 雷腊梅[1] 韩博平[1] 

机构地区：[1]暨南大学水生生物研究所,广州510632

出　　处：《生态科学》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

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.

关 键 词：光驯化 快速光曲线 蛋白核小球藻 

分 类 号：Q945.11[生物学—植物学]