Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Más filtros

Bases de datos
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Microbiol Res ; 212-213: 94-102, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29853172

RESUMEN

The development of alternatives for the use of chemical pesticides for plant disease control is the present-day and ongoing challenge for achieving sustainable agriculture. Pseudomonas fluorescens SF4c, native strain from wheat, produces tailocins (phage-tail-like bacteriocins) with antimicrobial activity against several phytopathogenic strains. We thus investigated the efficacy of foliar application of these bacteriocins to control the bacterial-spot disease in tomato caused by Xanthomonas vesicatoria Xcv Bv5-4a. The disease severity and incidence index were reduced by 44 and 36%, respectively; while the number of viable cells of X. vesicatoria Xcv Bv5-4a decreased after bacteriocin treatment. Furthermore, bacteriocin was effective in reducing bacterial-spot-disease symptoms on tomato fruits even when applied 12 h after infection. Tailocin activity was not affected by abiotic influences such as adjuvant, light and temperature and, biotic factors such as apoplastic-fluids. In contrast, no antibacterial activity of these tailocins was observed when the bacteriocin was exposed to extremely dry conditions. Finally, that no cytotoxic effects on mammalian cells were observed with this representative tailocins is highly significant and demonstrates the safety of such compounds in humans. All these findings indicate that the SF4c tailocins represent an attractive alternative to copper-containing bactericides for use in the control of bacterial spot.


Asunto(s)
Infecciones Bacterianas/tratamiento farmacológico , Bacteriocinas/farmacología , Enfermedades de las Plantas/microbiología , Enfermedades de las Plantas/terapia , Pseudomonas fluorescens/metabolismo , Solanum lycopersicum/microbiología , Xanthomonas vesicatoria/efectos de los fármacos , Animales , Antibacterianos/biosíntesis , Antibacterianos/farmacología , Antibiosis , Bacteriocinas/química , Bacteriocinas/aislamiento & purificación , Bacteriocinas/metabolismo , Agentes de Control Biológico/metabolismo , Agentes de Control Biológico/farmacología , Chlorocebus aethiops , Eritrocitos/efectos de los fármacos , Luz , Solanum lycopersicum/crecimiento & desarrollo , Hojas de la Planta/citología , Hojas de la Planta/efectos de los fármacos , Hojas de la Planta/microbiología , Ovinos , Temperatura , Células Vero/efectos de los fármacos , Xanthomonas vesicatoria/patogenicidad
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA