Online ISSN : 1881-6371
Print ISSN : 0914-5818
ISSN-L : 0914-5818
Original Articles
Isolation of Actinomycetes from Live Plants and Evaluation of Antiphytopathogenic Activity of Their Metabolites
Yasuhiro IgarashiTakako IidaTomomitsu SasakiNoriko SaitoRyuji YoshidaTamotsu Furumai
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2002 Volume 16 Issue 1 Pages 9-13


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.

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© 2002 The Society for Actinomycetes Japan
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