Isolation of Actinomycetes from Live Plants and Evaluation of Antiphytopathogenic Activity of Their Metabolites

Actinomycetes were isolated from live plants collected in Toyama and Miyagi prefectures, Japan. Three hundred and ninety eight actinomycete strains were obtained from the leaves, stems and roots of 11 harbaceous and 13 arbor plants of agricultural and wild species. n-Butanol extracts of the fermenta...

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Published inActinomycetologica Vol. 16; no. 1; pp. 9 - 13
Main Authors Igarashi, Yasuhiro, Iida, Takako, Sasaki, Tomomitsu, Saito, Noriko, Yoshida, Ryuji, Furumai, Tamotsu
Format Journal Article
LanguageEnglish
Published The Society for Actinomycetes Japan 2002
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Summary:Actinomycetes were isolated from live plants collected in Toyama and Miyagi prefectures, Japan. Three hundred and ninety eight actinomycete strains were obtained from the leaves, stems and roots of 11 harbaceous and 13 arbor plants of agricultural and wild species. n-Butanol extracts of the fermentation broths of these strains were screened for antiphytopathogenic activity using in vitro antimicrobial and in vivo antiinfective assays. About 10–20% of the extracts showed antagonistic activity against fungal or bacterial plant pathogens. In addition, several extracts suppressed the infection of Alternaria brassicicola TP-F0423, a fungal pathogen to seedlings of Chinese cabbages in vivo.
ISSN:0914-5818
1881-6371
DOI:10.3209/saj.16_9