In vitro Antimicrobial Assay of Actinomycetes in Rice Against Xanthomonas oryzae pv. oryzicola and as Potential Plant Growth Promoter
Título del documento: In vitro Antimicrobial Assay of Actinomycetes in Rice Against Xanthomonas oryzae pv. oryzicola and as Potential Plant Growth Promoter
Revista: Brazilian archives of biology and technology
Base de datos: PERIÓDICA
Número de sistema: 000392818
ISSN: 1516-8913
Autores: 1
1
1
2
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Instituciones: 1Universiti Putra Malaysia, Faculty of Agriculture, Serdang, Selangor. Malasia
2Universiti Putra Malaysia, Faculty of Biotechnology and Biomolecular Sciences, Serdang, Selangor. Malasia
Año:
Periodo: Nov-Dic
Volumen: 58
Número: 6
Paginación: 821-832
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés The aim of this work was to in vitro assay the antimicrobial activity of actinomycetes in rice against Xanthomonas oryzae pv. oryzicola and as potential plant growth promoter. A total of 92 actinomycete strains were isolated from different rice plant components and field locations. Of these, only 21.74% showed antagonistic activity against the Xoc pathogen. Molecular identification via 16s rRNA amplification revealed that 60% of the active antagonistics trains belonged to the genus Streptomyces. Isolates that demonstrated the highest antagonistic activity were also able to produce hydrolytic enzymes and plant growth – promoting hormones. Combination of preliminary screening based on in vitro antagonistic, hydrolytic enzyme and plant growth hormone activity facilitated the best selection of actinomycete candidates as evidenced by strains classification using cluster analysis (Ward’s Method). Results from the preliminary screening showed that actinomycetes, es pecially Streptomycetes , could offer a promising source for both biocontrol and plant growth - promotion agents against BLS disease in rice
Disciplinas: Biología,
Química,
Agrociencias
Palabras clave: Fisiología vegetal,
Hongos,
Bioquímica,
Fitotecnia,
Arroz,
Enzimas hidrolíticas,
Reguladores del crecimiento,
Streptomyces
Keyword: Biology,
Chemistry,
Agricultural sciences,
Fungi,
Plant physiology,
Biochemistry,
Crop husbandry,
Hydrolytic enzymes,
Growth regulators,
Rice,
Streptomyces
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