Abstract
Heterocysts of the filamentous blue-green alga Anabaena cylindrica have a high concentration of the System 1 reaction center P700 and are able to photooxidize a cytochrome. They have a low yield of chlorophyll a fluorescence, do not show light-induced changes in fluorescence yield, show a very low intensity of delayed light emission and do not show Hill-reaction activity. It is concluded that heterocysts contain Photosystem 1 only.
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Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - Bioenergetics
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