(from the article `bacteria`) ...OxyphotobacteriaGram-negative bacteria that carry out oxygen-evolving photosynthesis. Includes the cyanobacteria and the order Prochlorales; ...
An order of gram-negative oxygenic photosynthetic bacteria containing both chlorophylls a and b, but lacking phycobilins. There are two genera: prochloron and prochlorothrix. ... (12 Dec 1998) ...