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  • Effect of endophytic Fusarium oxysporum on paralysis and mortality of Pratylenchus goodeyi.

    Author(s) : Mwaura, P.Dubois, T.Losenge, T.Coyne, D.Kahangi, E.

    Author Affiliation : Department of Horticulture, Jomo Kenyatta University of Agriculture and Technology, PO Box 62000, Nairobi, Kenya.

    Author Email : pmwaura08@gmail.com

    Journal article : African Journal of Biotechnology 2010 Vol.9 No.8 pp.1130-1134 ref.23

    Abstract : Three bioassays were conducted to investigate the antagonistic effect of secondary metabolites produced by 5 endophytic Fusarium oxysporum isolates from banana (Musa spp.) plants in Kenya, against Pratylenchus goodeyi. Percentage paralyses were recorded 3, 6 and 24 h after exposure to culture filtrates. Percentage mortality was evaluated after 48 h. All isolates caused significantly higher percentage paralysis (17.5-25.9%) and percentage mortality (62.3-72.8%) of P. goodeyi motile stages compared to the control (8.4-10.9% and 17.3-34.6%, respectively). Percentage paralysis of motile stages of P. goodeyi decreased as the length of time exposure to culture filtrates increased, while mortality increased as length of nematodes exposure to culture filtrates increased. Kenyan isolates performed equally as good as the Ugandan isolate (V5W2) in causing paralysis and mortality. Results from this study demonstrated that endophytic F. oxysporum antagonizes P. goodeyi through production of secondary metabolites.

    ISSN : 1684-5315

    URL : http://www.academicjournals.org/AJB/P...

    Record Number : 20103090756

    Publisher : Academic Journals

    Location of publication : Nairobi

    Country of publication : Kenya

    Language of text : English

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Fusarium oxysporum, Musa, Nematoda, Pratylenchus goodeyi

    Descriptor(s) : antagonism, bananas, endophytes, mortality, parasites, pests, plant parasites, plant parasitic nematodes, plant pests, secondary metabolites

    Identifier(s) : death rate, eelworms, fungus, nematodes, Secernentea, subsaharan Africa, Tylenchida

    Geographical Location(s) : Africa South of Sahara, Kenya

    Broader term(s) : Fusarium, Nectriaceae, Hypocreales, Sordariomycetes, Pezizomycotina, Ascomycota, fungi, eukaryotes, Musaceae, Zingiberales, commelinids, monocotyledons, angiosperms, Spermatophyta, plants, invertebrates, animals, Pratylenchus, Pratylenchidae, Rhabditida, Chromadoria, Chromadorea, Nematoda, ACP Countries, Anglophone Africa, Africa, Commonwealth of Nations, Developing Countries, East Africa, Africa South of Sahara