VAN NIEL, C B Studies on the pigments of the purple bacteria; the yellow and red pigments of Rhodopseudomonas spheroides. [electronic resource] - Antonie van Leeuwenhoek - 156-66 p. digital Publication Type: Journal Article ISSN: 0003-6072 Standard No.: 10.1007/BF02272662 doi Subjects--Topical Terms: BacteriaProteobacteriaRhodobacter sphaeroides