NEMATODES

taxonomy, morphology and phylogeny

Structure of the female reproductive system of Xiphinema americanum (Nematoda : Longidoridae)

Publication Type:Journal Article
Year of Publication:1998
Authors:A. Coomans, Claeys M.
Journal:Fundamental and Applied NematologyFundamental and Applied Nematology
Volume:21
Pagination:569-580
Date Published:Sep-Oct
ISBN Number:1164-5571
Accession Number:WOS:000076164600015
Abstract:

The female reproductive system of Xiphinema americanum differs from that of other Xiphinema species in several respects. The ovary has branched oocytes surrounded by epithelial wall cells in which symbiotic bacteria are embedded. The oviduct has a long pars dilatata which is not clearly separated from the slender part; its wall is extensively folded and extendible. The sphincter between oviduct and uterus has a sinuous lumen and 'internal musculature'. The uterus is extremely short and has a folded wall; the two uteri constitute together an extendible ovejector. Shortening of the uterus is considered to be an evolutionary trend in the X. americanum-group. (C) Orstom/Elsevier, Paris.

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