BACTERIOCHLOROPHYLL-A(G)G AND BACTERIOPHEOPHYTIN-A(P) IN PHOTOSYNTHETIC REACTION CENTERS FROM RHODOSPIRILLUM-RUBRUM G-9+

Bacteriochlorophyll aGg and Bacteriopheophytin ap in Photosynthetic Reaction Centers from Rhodospirillum rubrum G‐9+ In photosynthetically active reaction centers from Rhodospirillum rubrum G‐9+, the magnesium complex bacteriochlorophyll a contains geranylgeraniol as the alcohol component, while the metal‐free bacteriopheophytin a contains phytol instead. These pigments bacteriochlorophyll aGg (4) and bacteriopheophytin aP (1) were isolated from reaction center preparations in a ratio of 2:1 and (after demetallation of 4) identified as bacteriopheophytin aGg (2), and aP (1) by comparison with authentic samples (UV./VIS., CD. and mass spectra as well as mixed HPLC.). Copyright © 1979 Verlag GmbH & Co. KGaA, Weinheim