Photostimulation of H2 production in the green alga Chlamydomonas reinhardtii upon photoinhibition of its O2-evolving system

被引:34
|
作者
Markov, S. A. [1 ]
Eivazova, E. R. [1 ]
Greenwood, J. [1 ]
机构
[1] Depauw Univ, Dept Biol, Greencastle, IN 46135 USA
基金
美国国家航空航天局;
关键词
biological hydrogen production; Chlamydomonas; photoinhibition;
D O I
10.1016/j.ijhydene.2005.11.017
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A brief exposure (15-30 min) of green alga Chlamydomonas reinhardtii cells to high-intensity light (2000 mu mol m(-2) s(-1)) was accompanied by rapid suppression of photosynthetic O-2 evolution. The decline in the rate of O-2 evolution was followed by stimulation of H-2 production under light of 15 mu mol m(-2) s(-1). The effect was dependent on light intensity and cell suspension density. It appears that photoinhibition of photosynthetic O-2 evolution led to anaerobiosis that is favorable for H-2 production. (c) 2005 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
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页码:1314 / 1317
页数:4
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