Comparison of Volatile Blends and Nucleotide Sequences of Two Beauveria Bassiana Isolates of Different Virulence and Repellency Towards the Termite Macrotermes Michealseni

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dc.contributor.authorMburu, David M.
dc.contributor.authorManiania, N. K.
dc.contributor.authorHassanali, Ahmed
dc.date.accessioned2013-12-11T09:43:01Z
dc.date.available2013-12-11T09:43:01Z
dc.date.issued2013
dc.descriptionDOI 10.1007/s10886-012-0207-6en_US
dc.description.abstractIsolates of the fungus Beauveria bassiana have different levels of virulence and repellency against the termite Macrotermes michaelseni. In the present study, we compared the volatile profiles and gene sequences of two isolates of the fungus with different levels of virulence and repellence to the termite. Gas chromatography – mass spectrometric analyses showed quantitative and qualitative differences in the compo-sition of volatiles of the two isolates. The repellencies of synthetic blends of 10 prominent components that mimicked the volatiles of each of the two isolates were significantly different. Subtractive bioassays showed that the repellency of each isolate was due to synergistic effects of a few constituents. As previously reported for isolates of Metarhizium anisopliae, some differences also were found in the nucleotide sequences of the two isolates of B. bassiana, suggesting a genetic basis for the observed intra-specific differences in their repellency andvirulence against the termite. Keywords Beauveria bassiana isolates. Macrotermes michaelseni. Virulence. Repellency. Olfactory blends. Nucleotide sequencesen_US
dc.identifier.citationJ Chem Ecol (2013) 39:101 – 108en_US
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/7943
dc.language.isoenen_US
dc.publisherSpringer Verlagen_US
dc.subjectBeauveria bassiana isolatesen_US
dc.subjectMacrotermes michaelsenien_US
dc.subjectVirulenceen_US
dc.subjectRepellencyen_US
dc.titleComparison of Volatile Blends and Nucleotide Sequences of Two Beauveria Bassiana Isolates of Different Virulence and Repellency Towards the Termite Macrotermes Michealsenien_US
dc.typeArticleen_US
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