New 6a-hydroxypterocarpan with insect antifeedant and antifungal properties from the roots of Tephrosia hildebrandtii vatke

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dc.contributor.authorHassanali, Ahmed
dc.contributor.authorLwande, W.
dc.contributor.authorNjoroge, P. W.
dc.contributor.authorBentley, M. D.
dc.contributor.authorMonache, F. D.
dc.contributor.authorJondiko, J. I.
dc.date.accessioned2013-12-23T08:49:16Z
dc.date.available2013-12-23T08:49:16Z
dc.date.issued2011-09-19
dc.descriptionDOI: http://dx.doi.org/10.1017/S1742758400004379en_US
dc.description.abstractA new 6a-hydroxylated pterocarpan, named hildecarpin, has been isolated from the healthy roots of Tephrosia hildebrandtii. It has been assigned the structure (−)-3, 6a-dihydroxy-2-methoxy-8, 9-methylenedioxypterocarpan on the basis of its spectroscopie data, optical rotation and chemical transformations. Hildecarpin has exhibited insect antifeedant activity against the legume pod-borer Maruca testulalis, an important pest of the cowpea (Vigna unguiculata), and antifungal activity against Cladosporium cucumerinum. This finding suggests that the pterocarpan phytoalexins formed as a result of microbial infection of the cowpea plant may constitute a basis for induced resistance in the plant against M. testulalis.en_US
dc.identifier.citationInternational Journal of Tropical Insect Science / Volume 6 / Issue 04 / August 1985, pp 537-541en_US
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/8187
dc.language.isoenen_US
dc.publisherInternational Journal of Tropical Insect Scienceen_US
dc.subjectTephrosia hildebrandtiien_US
dc.subjectLeguminosaeen_US
dc.subjectpterocarpanen_US
dc.subjecthildecarpinen_US
dc.subjectflavonoiden_US
dc.subjectisoflavonoiden_US
dc.subjectantifeedanten_US
dc.subjectantifungalen_US
dc.subjectMaruca testulalisen_US
dc.subjectcowpeaen_US
dc.subjectVigna unguiculataen_US
dc.subjectVigna speciesen_US
dc.subjectrootsen_US
dc.titleNew 6a-hydroxypterocarpan with insect antifeedant and antifungal properties from the roots of Tephrosia hildebrandtii vatkeen_US
dc.typeArticleen_US
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