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KMID : 0379119980260030380
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Korean Journal of Mycology
1998 Volume.26 No. 3 p.380 ~ p.386
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Cultural Characteristics for Inducing Fruting - body of Isaria japonicu
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Abstract
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To obtain basic data for mass production of Isaria japonica, cultural characteristics of japonica were investigated by using liquid, solid media and silkworms pupa. Mycelia grew favorably at the temperature of 23∼28℃ on MYG medium with pH 7.0. The fruiting-body of I. japonica was induced below 20℃ in MYG liquid medium (Malt yeast glucose) under fluorescent light. In MYG basal medium mixed with pupal powder of silkworms, the fresh weight of fruiting-bodies was increased with increasing concentration of pupal powder. The highest yield of fruiting bodies was obtained in carbon-rich medium supplemented with pupal powder of silkworm. Also, fruiting-bodies of I. japonica were produced massively on the silkworm pupa placed on the stainless tray in the shortest time. The structure and shape of fruiting-bodies were coral-like, many-branched types with numerous conidiospores.
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