Production,by filamentous,nitrogen-fixing cyanobacteria,of a bacteriocin and of other antibiotics that kill related strains |
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| Authors: | Enrique Flores C Peter Wolk |
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| Institution: | (1) MSU-DOE Plant Research Laboratory, Michigan State University, 48824 East Lansing, Michigan, USA;(2) Present address: Departamento de Bioquímica, Facultad de Biología y C.S.I.C., Apartado 1095, E-41080 Sevilla, Spain |
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| Abstract: | Colonies of sixty-five filamentous cyanobacteria were screened for the production of temperate phages and/or antibiotics on solid medium. None of them was observed to release phages. However, seven N2-fixing strains were found to produce antibiotics very active against other cyanobacteria. The antibiotic produced by Nostoc sp. 78-11 A-E represents a bacteriocin of low molecular weight. Nostoc sp. ATCC 29132 appears to secrete, together with an antibiotic, a protein that inhibits its action. |
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| Keywords: | Antibiotics Bacteriocin Cyanobacteria Nostoc |
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