• Mycobiology
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• v.39 no.2
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• pp.133-136
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• 2011

Mycelial growth and survival ratio of ectomycorrhizal fungi were determined after storage at $-70^{\circ}C$ for 1, 3, or 6 mon. Seventeen of 23 ectomycorrhizal fungi did not survive after storage for more than 6 mon, whereas Cenococcum geophilum, Lepista nuda, and some species of Rhizopogon and Suillus did survive.

• The Korean Journal of Mycology
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• v.3 no.2
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• pp.7-12
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• 1975

Three species of Pythium previously not recorded in Korea were found during 1975. Pythium spinosum Sawada was isolated from diseased cabbage seedlings, P. myriotylum Dreschl. was isolated from kidney bean and P. butleri Subramanium from cucumber, spinach, red bean and radish. Pathogenicity of isolates of P. butleri and P. myriotylum was confirmed in pathogenicity tests but P. spinosum appeared to be non-pathogenic. Several isolates failed to sporulate satisfactorily on cornmeal agar and some produced degenerate oogonia after sub-culturing on this medium. Sunflower seed agar was found to be a suitable alternative medium. The validity of previous records of P. debaryanum Hess in Korea is discussed.