Photosynthetic pigments: perplexing persistent prevalence of 'superfluous' pigment production.
Phycobilins function as light-harvesting pigments in most cyanobacteria and red algae. Although green cyanobacteria of the genus Prochlorococcus express genes encoding enzymes that direct the synthesis of phycobilins, these pigments do not appear to play a role in light harvesting in Prochlorococcus. Now, it is shown that cyanophages infecting Prochlorococcus also contain genes for phycobilin-synthesizing enzymes, and these are expressed in Prochlorococcus, raising further questions as to the role of phycobilins in the host and the virus.
Beale
Samuel I
SI
Division of Biology and Medicine, Brown University, Providence, Rhode Island 02912, USA. sib@brown.edu
D005814:Genes, Viral; D010788:Photosynthesis / Q000502:physiology; D052980:Phycobilins / Q000096:biosynthesis* / Q000235:genetics; D048929:Prochlorococcus / Q000235:genetics / Q000378:metabolism* / Q000821:virology
D052980:Phycobilins