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  • Title: R-type pyocin is required for competitive growth advantage between Pseudomonas aeruginosa strains.
    Author: Heo YJ, Chung IY, Choi KB, Cho YH.
    Journal: J Microbiol Biotechnol; 2007 Jan; 17(1):180-5. PubMed ID: 18051371.
    Abstract:
    R-type pyocin is a bacteriophage tail-shaped bacteriocin produced by Pseudomonas aeruginosa, but its physiological roles are relatively unknown. Here we describe a role of R-type pyocin in the competitive growth advantages between P. aeruginosa strains. Partial purification and gene disruption revealed that the major killing activity from the culture supernatant of PA14 is attributed to R-type pyocin, neither F-type nor S-type pyocins. These findings may provide insight into the forces governing P. aeruginosa population dynamics to promote and maintain its biodiversity.
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