Gluconacetobacter diazotrophicus, a sugar cane endosymbiont, produces a bacteriocin against Xanthomonas albilineans, a sugar cane pathogen
2002; Elsevier BV; Volume: 153; Issue: 6 Linguagem: Inglês
10.1016/s0923-2508(02)01336-0
ISSN1769-7123
AutoresDolores Piñón, M. Casas, Marı́a Blanch, Blanca Fontaniella, Yolanda Blanco, Carlos Vicente, Marı́a-Teresa Solas, Marı́a-Estrella Legaz,
Tópico(s)Plant Pathogenic Bacteria Studies
ResumoGluconacetobacter diazotrophicus in liquid culture secretes proteins into the medium. Both medium containing Gluconacetobacter protein and a solution of this protein after acetone precipitation appeared to inhibit the growth of Xanthomonas albilineans in solid culture. This apparent inhibition of bacterial growth has, in fact, been revealed to be lysis of bacterial cells, as demonstrated by transmission electron microscopy. Fractionation of the Gluconacetobacter protein mixture in size-exclusion chromatography reveals a main fraction with lysozyme-like activity which produces lysis of both living bacteria and isolated cell walls.
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