• Contact Us
    • Send Feedback
    • Login
    View Item 
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    Whole Repository
    CollectionsIssue DateRegionCountryHubAffiliationAuthorsTitlesSubject
    This Sub-collection
    Issue DateRegionCountryHubAffiliationAuthorsTitlesSubject

    My Account

    Login

    Welcome to the International Institute of Tropical Agriculture Research Repository

    What would you like to view today?

    Two new species of Steinernema Travassos, 1927 from the humid forest of southern Cameroon

    Thumbnail
    View/Open
    S12ArtNgokangaTwoInthomDev.pdf (4.441Mb)
    Date
    2012
    Author
    Ngo Kanga, F.
    Trinh, P.Q.
    Waeyenberge, L.
    Spiridonov, S.E.
    Hauser, S.
    Moens, M.
    Type
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    Steinernema cameroonense sp. n. and S. nyetense sp. n. are two new species isolated from soil samples in Minkama, Obala and Nkontangan, Nyété, respectively. Steinernema cameroonense sp. n. is characterised by infective juvenile body length averaging 622 (490-693) μm; pharynx length of 108 (100- 114) μm; tail length of 76 (52-107) μm; D and E values of 48 (42-56) and 75 (48-116), respectively. The lateral field pattern is 2, 4, 5, 6, 3, and 2. First generation males can be recognised by spicule length of 69 (51-85) μm; GS = 64 (47-76); SW = 170 (131-200); D 64 (48-76). Steinernema nyetense sp. n. is characterised by infective juvenile body length averages 648 (565-708) μm; pharynx length is 114 (104- 127) μm; tail length is 82 (54-112) μm; D and E values are 46 (37-50) and 66 (43-89), respectively. The lateral field pattern is 2, 4, 5, 4, 3, and 2. First generation males can be recognised by spicule length of 80 (67-98) μm; GS = 66 (51-77); SW = 198 (124-283); D = 55 (40-70). As inferred from the sequence analysis of ITS rDNA S. cameroonense n. sp. and S. nyetense sp. n. represent separate group in the genus Steinernema distantly related to ‘monticolum’ and ‘feltiae-kraussei-oregonense’ clades. According to D2D3 LSU rDNA sequences the two new Steinernema species from Cameroon constitute a separate group related to inner nodes of Steinernema phylogeny.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1540
    IITA Subjects
    Pests Of Plants
    Agrovoc Terms
    Molecular Phylogeny; Morphology; Morphometrics; Rdna; Steinernema; Taxonomy; Humid Forest; Nematode
    Regions
    Africa; West Africa
    Countries
    Cameroon
    Journals
    Russian Journal of Nematology
    Collections
    • Journal and Journal Articles4835
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository