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Oxygen-Evolving Extracts from a Thermophilic Cyanobacterium Synechococcus sp.

Miyairi, Sachio; Schatz, Günther H.

Spheroplast membranes of a thermophilic cyanobacterium Synechococcus sp. have been treated with the detergent lauryldim ethylam ine oxide (LDAO). The resulting extracts show (1) light-induced O2 evolution with artificial electron acceptors, (2) four-fold enhancement of the O2 evolution relative to chlorophyll, (3) parallel increase of both the molar ratios of PS 2/C hl and cyt b559/Chl in the extract, (4) dissociation of the auxiliary pigment phycocyanin upon treatment with LDAO, but still tight association of allophycocyanin to the photosystem 2 preparation.
Published in: Zeitschrift für Naturforschung C, 10.1515/znc-1983-1-210, De Gruyter