Archives of Microbiology

, Volume 145, Issue 3, pp 215–219 | Cite as

Production, by filamentous, nitrogen-fixing cyanobacteria, of a bacteriocin and of other antibiotics that kill related strains

  • Enrique Flores
  • C. Peter Wolk
Original Papers


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.

Key words

Antibiotics Bacteriocin Cyanobacteria Nostoc 


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Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • Enrique Flores
    • 1
  • C. Peter Wolk
    • 1
  1. 1.MSU-DOE Plant Research LaboratoryMichigan State UniversityEast LansingUSA

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