You are here:
EFFECTS OF CYANOPHAGE SAM-1 UPON 'MICROCYSTIS AERUGINOSA'
Citation:
Parker, D., G. Jansen, AND L. Corbett. EFFECTS OF CYANOPHAGE SAM-1 UPON 'MICROCYSTIS AERUGINOSA'. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/3-77/079 (NTIS PB272078), 1977.
Description:
Cyanophage SAM-1, which infects Synechoccus cedrorum, Anacystis nidulans and certain strains of Microcystis aeruginosa has been isolated from sewage. The host range of cyanophage SAM-1 differs from those of other reported cyanophages. Phage SAM-1 stocks are rapidly inactivated at temperatures above 45 C or at pH values below 4 or above 10. The simultaneous application of chloroform and of agitation reduces viral infectivity to 20% of the original infectivity. The SAM-1 multiplication cycle has a latent period of 10 hours, a rise period of an additional 6 hours, and eclipse period of 6 hours, and an average burst size of 90 plaque-forming units per infected cell. Electron micrographs show SAM-1 virions consisting of polyhedral head and a contractile tail with a distinctive terminal structure. The properties of cyanophage SAM-1 are compared with those of other cyanophages.