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KMID : 0545120100200091348
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Journal of Microbiology and Biotechnology
2010 Volume.20 No. 9 p.1348 ~ p.1350
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Plant oils for improving thermotolerance of Beauveria bassiana
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Kim Jae-Su
Margaret Skinner
Bruce L. Parker
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Abstract
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Conidia of Beauveria bassiana ARSEF-7060 produced in millet amended with plant oils such as sunflower, corn, or cotton seed oil, were exposed to 45°C of wet heat for 90 min. Conidia from millet+corn oil medium had the highest thermotolerance (LT50 (median survival time): 45.7 min). The mycotized millet grains were coated with each of the same plant oils as a granular formulation and subjected to 50°C of dry heat for 8 h. Corn oil coating (LT50: 8.68 h) was superior to sunflower- and cotton seed oil coatings, suggesting the feasibility of using corn oil to increase conidial thermotolerance.
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KEYWORD
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Beauveria bassiana, millet, corn oil, thermotolerance, fungal coatings
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