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KMID : 0379119920200030229
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Korean Journal of Mycology
1992 Volume.20 No. 3 p.229 ~ p.233
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Symptoms of Virus Infected Oyster Mushrooms , Pleurotus florida
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J. G. H. Wessels
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Abstract
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Although there were differences depending on strains and environmental conditions, virus infected oyster mushroom, Pteurotus florida showed slow growth on sawdust and rice straw substrates. Many harmful microorganisms occurred on the cultural bed of virus infected isolates. Pinhead formed too densely or too rarely sometimes. Stipes of the mushrooms were long slightly bent with small cap. The virus infected mushrooms formed branch on their stipes. The first pinheading days of the infeeted mushroom were later than that of healthy culture. The loss of fruit body yield was abort 30% compared with that of virus free culture. Spores which contaminated by viruses damaged more seriously than the other source. The authors would like to call these symptoms as a new disease in oyster mushroom culture in the world.
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