Fig. 3.
Photosystem functionality and pigment characterization of strain AP64. (A) In vivo absorption spectrum. (Inset) The 77K fluorescence emission spectrum. (B) Fluorescence induction and relaxation kinetics recorded by infrared fluorometry. (C) HPLC elution profile of pigment extracts from strains Gemmatimonas sp. AP64 and G. aurantiaca T-27 at 480 nm for carotenoids and 770 nm for BChl a. Note that traces are shifted vertically. Numbers above peaks indicate main pigments: 1 and 2, putative (2S,2’S)-oscillol 2,2’-di-(α-l-rhamnoside) (29); 3–6, unknown carotenoids; 7, BChl aGG (geranlylgeranyl); 8, spirilloxanthin; 9, BChl aP (phytol); 10, bacteriophaeophytin aP.