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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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