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Pigment 750 sensitized photo oxidations in anacystis nidulans

Kleinen-Hammans, J.W.

Plant and Cell Physiology 19(8): 1457-1464

1978

ISSN/ISBN: 0032-0781
Accession: 006122071
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Endogenous reductants in Anacystis are photooxidized in a P750-sensitized reaction. These reductants do not serve as electron donors to photosystem I, nor are they oxidized in simpler chlorophyll-sensitized reactions. There are indications that excitation of both P750 and chlorophyll causes formation of singlet oxygen, but that chlorophyll-sensitized oxidations via the 1O2 mechanism are inhibited in Anacystis by the quenching effect of .beta.-carotene.

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Related References

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