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dc.contributor.authorAhmed Hassanali
dc.date.accessioned2012-10-24T11:21:17Z
dc.date.available2012-10-24T11:21:17Z
dc.date.issued2010-11-29
dc.identifier.citationdoi: 10.1242/​jeb.050419en_US
dc.identifier.urihttp://hdl.handle.net/123456789/346
dc.descriptionThe original publication is available at http://jeb.biologists.org/content/214/6/956.short#en_US
dc.description.abstractPreviously, we reported an interesting relationship between virulence and repellency of different isolates of the fungus Metarhizium anisopliae towards the termite Macrotermes michaelseni: the higher the virulence of a given isolate, the greater its repellency. In the present study, we compared the volatile profiles of two isolates, one that was more virulent (and repellent) and one that was less virulent (and repellent) to the termite. The prominent components of the two blends were characterized by gas chromatography-mass spectrometry and authenticated by gas chromatography coinjections with synthentic standards. There were both qualitative and quantitative differences between the two blends. The repellencies of synthetic blends of 10 prominent constituents of the volatiles of the two isolates were compared and that of the more virulent isolate was found to be significantly more repellent. Subtractive bioassays were carried out with one of the constituents of each of the two 10-component blends missing at a time to determine its relative contribution to the overall repellency. The results indicated that the repellency of the volatiles of each isolate was primarily due to synergistic effects of a smaller number of constituents. Intraspecific differences between the two isolates were also reflected in their nucleotide sequences.en_US
dc.description.sponsorshipPwani Universityen_US
dc.language.isoenen_US
dc.publisherThe Journal of Experimental Biologyen_US
dc.subjectMacrotermes michaelsenien_US
dc.subjectMetarhizium anisopliaeen_US
dc.subjectolfactory chemical signatureen_US
dc.subjectphysiological interactionen_US
dc.subjectecological interactionen_US
dc.titleComparison of volatile blends and gene sequences of two isolates of Metarhizium anisopliae of different virulence and repellency toward the termite Macrotermes michaelsenien_US
dc.typeArticleen_US


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