• Login
    View Item 
    •   Repository Home
    • Research Papers (RP)
    • RP-School of Pure and Applied Sciences
    • RP-Department of Chemistry
    • View Item
    •   Repository Home
    • Research Papers (RP)
    • RP-School of Pure and Applied Sciences
    • RP-Department of Chemistry
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Bioactive Metabolites from Trichoderma Harzianum and Trichoderma Longibrachiatum

    Thumbnail
    View/Open
    Full text article (112.6Kb)
    Date
    2003-03
    Author
    Thoruwa, C. L.
    Tarus, P. K.
    Wanyonyi, A. W.
    Chhabra, S. C.
    Metadata
    Show full item record
    Abstract
    The tea plant, Camellia sinensis (L.) O. Kuntze is an important crop in the agriculturally based economy of Kenya. Many diseases affect the tea plant but the most prevalent is armillaria root rot caused by the fungus Armillaria mellea. Compounds from the fermentation of Trichoderma species in different media were bioassayed against some selected gram-positive and gram-negative bacteria, fungi including Armillaria mellea, a yeast and a Mucor. Compounds obtained from T. harzianum, and T. longibrachiatum when cultured in various media were investigated individually for in-vitro antifungal and antibacterial activities by agar diffusion technique. Some of the compounds produced definite antifungal and antibacterial activities. 2- Phenylethanol (1) and tyrosol (2) obtained from T. harzianum are reported for the first time from Trichoderma species. The most active metabolite isolated from these strains was 6-n-pentyl-•- pyrone (3), which showed the highest antifungal and antibacterial activity and completely inhibited the growth of Armillaria mellea fungus at a concentration of 200 ppm. Compound 4 (sorbicillin) exhibited moderate activity against the fungal test organisms.
    URI
    http://ir-library.ku.ac.ke/handle/123456789/8753
    Collections
    • RP-Department of Chemistry [450]

    Designed by Library ICT Team copyright © 2017 
    Contact Us | Send Feedback

     

     

    Browse

    All of RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Designed by Library ICT Team copyright © 2017 
    Contact Us | Send Feedback