RESUMEN
The polyphasic taxonomic analysis of strain Bacillus sp. UCM B-7404 active against phytopathogenic fungi and producing extracellular phytohormones, lytic enzymes and lipopeptide antifungal compounds has been carried out. The basic cell wall fatty acids presented by branched iso- and anteiso- C15:0 and C17:0 acids, contained 65-77% of the average pool. Phylogenetic assay of 16S rRNA gene nucleotide sequence, phenotypic and chemotaxonomic characteristics proved the attachment of strain Bacillus sp. UCM B-7404 to Bacillus amyloliquefaciens subsp. plantarum.
Asunto(s)
Bacillus/clasificación , ADN Bacteriano/genética , Filogenia , ARN Ribosómico 16S/genética , Antibiosis , Péptidos Catiónicos Antimicrobianos/biosíntesis , Péptidos Catiónicos Antimicrobianos/farmacología , Bacillus/química , Bacillus/genética , Bacillus/metabolismo , Pared Celular/química , Ácidos Grasos/análisis , Fusarium/efectos de los fármacos , Fusarium/crecimiento & desarrollo , Reguladores del Crecimiento de las Plantas/biosíntesis , Reguladores del Crecimiento de las Plantas/farmacologíaRESUMEN
The antagonistic activity of strains Bacillus amyloliquefaciens YKM B-7243 and YKM B-7404 against bacterial and fungal agents of winter wheat diseases was demonstrated. Low antagonistic level against bacterial agents of plant diseases was shown. Antifungal activity of strains against agents of winter wheat was on the low level. High biological efficiency was shown under binary compositions of the studied strains. It was concluded that the enhancing of fungicide and growth-stimulation effects in binary compositions were found.