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Xanthomonas campestris pv. campestris is a pathogen of cruciferous plants. We studied the survival of the wild type strain and mutant derivatives which are deficient in exopolysaccharide (EPS) or in extracellular protease synthesis in soil microcosms in order to test the hypothesis that, in this environment, adherence to soil particles and scavenging of nutrients are very important strategies for bacterial survival. In sterile soil microcosms, differences in survival were only observed betsveen the EPS producer and its mutant. In non-sterile soil experiments, survival of Prf mutant was similar to EPS mutant, suggesting that both characteristics have a strong influence in survival in the presence of the natural bacterial community. Bacterial decrease represented by the slope of regression lines was higher in nonsterile soil microcosms due to the influence of biotic interactions. © Springer-Verlag 1999.


Documento: Artículo
Título:Evaluation of Xanthomonas campestris survival in a soil microcosm system
Autor:López, N.I.; Haedo, A.S.; Méndez, B.S.
Filiación:Department of Biological Sciences, Faculty of Sciences, University of Buenos Aires, Argentina
Department of Biological Chemistry, Faculty of Sciences, University of Buenos Aires, Argentina
Departamento de qui'Mica Biolôgica, Facultad de Ciencias Exaclas Y Naturales, Ciudad Universitaria, Pabellön 2, 1428 Buenos Aires, Argentina
Palabras clave:Bacterial survival; Exopolysaccharides; Extracellular proteases; Soil microcosms; Xanthomonas campestris; bacterial polysaccharide; bacterial protein; proteinase; article; ecology; genetics; microbiology; physiology; Xanthomonas campestris; Bacterial Proteins; Ecology; Endopeptidases; Polysaccharides, Bacterial; Soil Microbiology; Xanthomonas campestris
Página de inicio:111
Página de fin:114
Título revista:International Microbiology
Título revista abreviado:Int. Microbiol.
CAS:Bacterial Proteins; Endopeptidases, EC 3.4.-; Polysaccharides, Bacterial


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---------- APA ----------
López, N.I., Haedo, A.S. & Méndez, B.S. (1999) . Evaluation of Xanthomonas campestris survival in a soil microcosm system. International Microbiology, 2(2), 111-114.
Recuperado de [ ]
---------- CHICAGO ----------
López, N.I., Haedo, A.S., Méndez, B.S. "Evaluation of Xanthomonas campestris survival in a soil microcosm system" . International Microbiology 2, no. 2 (1999) : 111-114.
Recuperado de [ ]
---------- MLA ----------
López, N.I., Haedo, A.S., Méndez, B.S. "Evaluation of Xanthomonas campestris survival in a soil microcosm system" . International Microbiology, vol. 2, no. 2, 1999, pp. 111-114.
Recuperado de [ ]
---------- VANCOUVER ----------
López, N.I., Haedo, A.S., Méndez, B.S. Evaluation of Xanthomonas campestris survival in a soil microcosm system. Int. Microbiol. 1999;2(2):111-114.
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