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    The infectivity and behaviour of exsheathed and ensheathed Heterorhabditis megidis infective juveniles


    Dempsey, Catherine M. and Griffin, Christine (2003) The infectivity and behaviour of exsheathed and ensheathed Heterorhabditis megidis infective juveniles. Nematology, 5 (1). pp. 49-53. ISSN 1388-5545

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    Abstract

    The consequencesof sheath loss on infectivityand behaviourof infective juveniles (IJ) were investigatedin Heterorhabditis megidis. Ensheathed IJ were more infective, killing 32% of wax moth larvae, compared to 18% killed by exsheathed IJ. The percentage of time engaged in seven behavioural activitieswas recordedfor individuallystored IJ but no differenceswere found between exsheathed and ensheathed IJ. Immobility was the most common behavioural category exhibited by both exsheathed and ensheathed IJ, occupying one third of the observation time. Storage conditions affected the rate of exsheathment; 40% of IJ stored for 28 days in water in bulk (50 in 8 ml) exsheathed compared to only 23% of those stored individually (1 in 2 ml).

    Item Type: Article
    Keywords: activity; entomopathogenic nematodes; Heterorhabditidae; sheath;
    Academic Unit: Faculty of Science and Engineering > Biology
    Item ID: 7527
    Depositing User: Dr. Christine Griffin
    Date Deposited: 18 Oct 2016 15:14
    Journal or Publication Title: Nematology
    Publisher: Koninklijke Brill NV.
    Refereed: Yes
    Funders: Enterprise Ireland (EI)
    URI:

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