Verification of the Z-scheme in Chlamydomonas mutants with Photosystem I deficiency

被引:8
作者
Boichenko, VA [1 ]
Bader, KP
机构
[1] Russian Acad Sci, Inst Soil Sci & Photosynth, Pushchino 142292, Moscow Region, Russia
[2] Univ Bielefeld, Dept Biol, D-33501 Bielefeld, Germany
基金
俄罗斯基础研究基金会;
关键词
CO2; fixation; H-2; photoproduction; O-2; evolution; Photosystem II;
D O I
10.1023/A:1005949128345
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
In conflict with the Z-scheme of photosynthesis, it has recently been reported [Greenbaum et al. Nature (1995) 376: 438-441; Lee et al. Science (1996) 273: 364-367] that Photosystem II can drive ferredoxin reduction and photoautotrophic growth in some mutants of Chlamydomonas lacking detectable Photosystem I reaction centre, P700. Using the same mutants, B4 and F8, here we report that action spectra and parameters of flash yields of different photoreactions show the operation in ferredoxin-dependent H-2 photoproduction and CO2 fixation of a fraction (at least 5% compared to wild- type) of the only Photosystem I complexes.
引用
收藏
页码:113 / 115
页数:3
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