Fungi associated with roots and fruits of black peppers in the Dominican Republic |
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| Authors: | Tsuneo Watanabe Juan de D. Moya José L. González Akira Matsuda |
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| Affiliation: | (1) Forestry and Forest Products Research Institute, P.O. Box 16, 305 Tsukuba Science City, Ibaraki, Japan;(2) Centro Nordeste de Desarrollo Tecnologico Agropecuario (CENDETECA), San Francisco de Macoris, Dominican Republic;(3) Japan International Cooperation Agency (JICA), Japan |
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| Abstract: | Several soilborne diseases have occurred in black pepper (Piper nigrum) plantations in the Dominican Republic since 1977. To understand environments in which the disease occurs fungal floras associated with them were studied. A total of 1,119 isolates, 603 from root segments of 12 vines, and 516 from fruit samples of 30 vines were identified as belonging to a total of 39 genera, namely, 31 from roots and 26 from fruits, excluding unsporulated fungi. The most dominant fungi wereFusarium in both root and fruit samples, followed byRhizoctonia, Diplodia, andPythium from roots, andDiplodia, Colletotrichum andPestalotia from the fruits. Preliminary pathogenicity tests towards leaves or roots of black pepper were conducted. |
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| Keywords: | fungus flora identification isolation pathogenicity |
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