Issue |
Parasite
Volume 13, Number 2, June 2006
|
|
---|---|---|
Page(s) | 127 - 130 | |
DOI | https://doi.org/10.1051/parasite/2006132127 | |
Published online | 15 June 2006 |
Mémoire
The infective larva of Litomosoides yutajensis Guerrero et al., 2003 (Nematoda: Onchocercidae), a Wolbachia-free filaria from bat
Larve infectante de Litomosoides yutajensis Guerrero et al., 2003 (Nematoda: Onchocercidae), filaire dépourvue de Wolbachia, parasite de chauves-souris
1
Instituto de Zoologia Tropical, Facultad de Ciencias, Universidad Central de Venezuela, PO Box 47058, Caracas 1041A, Venezuela
2
Parasitologie Comparée et Modèles Expérimentaux (associée à l’INSERM U567 CNRS FR 12/Université René Descartes), Muséum National d’Histoire Naturelle, CNRS FR 101, 61, rue Buffon, 75231 Paris Cedex 05, France
* Correspondence: Dr Odile Bain. Tel.: 33 (0)1 49 79 34 96 – Fax: 33 (0)1 40 79 34 99. E-mail: bain@mnhn.fr
Received:
1
December
2005
Accepted:
24
March
2006
The infective larva of Litomosoides yutajensis Guerrero et al., 2003, a parasite of the bat Pteronotus parnellii, is described; it is distinct from congeneric infective larvae by the absence of caudal lappets. The life cycles of five other species of Litomosoides are known; three are parasites of rodents, one of a marsupial and one of a bat. As with these species, the experimental vector of L. yutajensis used was the macronyssid mite Ornithonyssus bacoti. In nature, the main vectors are probably other macronyssids but transmission by O. bacoti, with its large host-range, could account for the characteristic host-switchings in the evolution of Litomosoides. Unlike the murine model L. sigmodontis Chandler, 1931, L. yutajensis is devoid of the endosymbiontic bacteria Wolbachia and may be of great interest.
Résumé
Description de la larve infectante de Litomosoides yutajensis Guerrero et al., 2003, parasite de Pteronotus parnellii ; elle est distincte des autres espèces du genre par l’absence de languettes caudales. Comme dans les cycles de Litomosoides élucidés, trois parasites de rongeurs, un de marsupial, et un de chauve-souris, le vecteur expérimental est Ornithonyssus bacoti. D’autres Macronyssidae sont probabement les principaux vecteurs naturels, mais O. bacoti, avec son large spectre d’hôtes, pourrait expliquer que les captures sont caractéristiques de l’évolution du genre Litomosoides. L. yutajensis est dépourvu de la bactérie endosymbionte Wolbachia, contrairement au modèle murin L. sigmodontis, et pourrait avoir un grand intérêt.
Key words: Nematoda / Filarioidea / infective larva / Litomosoides / bat / mite / Wolbachia
Mots clés : Nematoda / Filarioidea / larve infectante / Litomosoides / chiroptère / acarien / Wolbachia
© PRINCEPS Editions, Paris, 2006, transferred to Société Française de Parasitologie
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