Studies on the distribution of alkalophilic and alkali-tolerant soil fungi I |
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| Authors: | Koji Nagai Terumi Sakai Ratna Murni Rantiatmodjo Kenichi Suzuki Walter Gams Gen Okada |
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| Institution: | (1) Drug Serendipity Research Laboratories, Institute for Drug Discovery Research, Yamanouchi Pharmaceutical Co., Ltd., Azusawa 1-1-8, Itabashi-ku, 174 Tokyo, Japan;(2) PT. Kalbe Farma, P.O. Box 3105 JAK, 10002 Jakarta, Indonesia;(3) Centraalbureau voor Schimmelcultures, P.O. Box 273, 3740 AG Baarn, The Netherlands;(4) Japan Collection of Microorganisms, The Institute of Physical and Chemical Research (RIKEN), Hirosawa 2-1, Wakoshi, 351-01 Saitama, Japan |
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| Abstract: | Soil fungi were isolated from two different soil types using alkaline and slightly acidic media (alkaline cornmeal agar (AC-MA), pH 9.7; cornmeal agar (CMA), pH 6.0) to study their distribution. Different species were obtained on each isolation medium. The number of species ofAcremonium andFusarium increased on ACMA, though many species growing well in acidic conditions were not detected on ACMA. Most of the fungi isolated on ACMA, especially from the alkaline soils, were alkalophiles or alkali-tolerants that can grow at pH 10.Acremonium alternatum, A. furcatum, Acremonium sp. 6,Gliocladium cibotii (YBLF 575),Phialophora geniculata, Stachylidium bicolor andStilbella annulata were alkalophilic, of whichAcremonium sp. 6 was the most pronounced alkalophile. Ability to grow under alkaline conditions, as well as under acidic conditions, was common in manyAcremonium species. The use of alkaline medium facilitates the isolation of alkalophilic soil fungi. |
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| Keywords: | alkaline isolation medium alkalophilic distribution soil fungi |
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