Sensitivity of Malayan isolates of Fusarium to soil fungistasis
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Spore germination of various isolates of Fusarium (isolated from Malayan sources) was inhibited when placed on cellulose film in contact with soil moistened with distilled water. Intraspecific variations in sensitivity to mycostasis were recorded suggesting physiological differences between isolates of the same species. The addition of glucose frequently masked the mycostatic factor while autoclaving the soil completely removed it. The growth of fungal mycelium in contact with soil followed a similar pattern and when hyphae grew in contact with autoclaved soil sporulation was frequently observed.
The similarities between the results outlined in this investigation and results from different countries is discussed and it is suggested that pathogenic fungi frequently have to overcome soil mycostasis before they can establish themselves in a new environment.
KeywordsGlucose Cellulose Plant Physiology Similar Pattern Fusarium
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