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Abstract:

The life cycle of the trematode Zygocotyle lunata (Diesing, 1836) is studied, beginning with cercariae from naturally infected Biomphalariaperegrina (d'Orbigny, 1835) and B. tenagophila (d'Orbigny, 1835) from Buenos Aires Province and Salta Province (Argentina), respectively. Adults were recovered from Gallus domesticus (Linnaeus, 1758) and Mus musculus (Linnaeus, 1758). Egg development lasted for 15-23 days at 23-24 C, and 10-12 days at 28-30 C; it was delayed after successive passages through mice, and ceased thereafter. In the snail, sporocysts, located beneath the mantle border, occurred up to 37 days post exposure (PE). Rediae invaded the entire snail body; developing ccrcarial bodies within rediae were recognized by the presence of a short tail, excretory canals, and eye-spot pigment. Cercariae emerged from snails as early as 20-26 days PE, encysting immediately on any substrate. These can be easily differentiated from those of Paramphistomum Fischoeder, 1901 spp. and Cotylophoron Stiles and Goldberger, 1910 spp., which have lateral excretory tubes forming a ring at the midlevel of the body and usually lack pharyngeal appendages. Metacercariae were infective for at least 6 months. Mature adults were observed 27-32 days PE in mice and 35 days PE in chicks. Biomphalaria tenagophila represents a new intermediate natural host record and Salta Province a new geographic area; Dendrocygna viduata (Linnaeus, 1766) and D. bicolor (Vieillot, 1816) from Venezuela are new host records for Z. lunata.

Registro:

Documento: Artículo
Título:The life cycle of Zygocotyle lunata (Trematoda, Paramphistomoidea) in the subtropical region of South America
Autor:De Núñez, M.O.; Davies, D.; Spatz, L.
Filiación:Laboratorio de Helmintología, Departamento de Biodiversidad y Biología Experimental, Pabellón 11, 1428EGA Buenos Aires, Argentina
Universidad Nacional de Salta, Av. Bolivia 5150, 4400, Salta, Argentina
Palabras clave:Argentina; Biomphalaria spp; Digenea; Experimental cycle; Larval stages; Zygocotylidae; Biomphalaria; Biomphalaria tenagophila; Cercaria (trematode genus); Cotylophoron; Dendrocygna viduata; Digenea (flukes); Gallus gallus; Gastropoda; Mus; Mus musculus; Paramphistomum; Trematoda; Zygocotyle lunata
Año:2011
Volumen:82
Número:2
Página de inicio:581
Página de fin:588
Título revista:Revista Mexicana de Biodiversidad
Título revista abreviado:Rev. Mex. Biodiversidad
ISSN:18703453
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18703453_v82_n2_p581_DeNunez

Referencias:

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  • Etges, F.J., Zygocotyle lunata: Laboratory maintenance in snails and mice (1992) Journal of the Helminthological Society of Washington, 59, pp. 22-24
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  • Fried, B., Robbins, S.H., Nelson, P.D., In vivo and in vitro excystation of Zygocotyle lunata (Trematoda) metacercaria and histochemical observations on the cyst (1978) Journal of Parasitology, 64, pp. 395-397
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Citas:

---------- APA ----------
De Núñez, M.O., Davies, D. & Spatz, L. (2011) . The life cycle of Zygocotyle lunata (Trematoda, Paramphistomoidea) in the subtropical region of South America. Revista Mexicana de Biodiversidad, 82(2), 581-588.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18703453_v82_n2_p581_DeNunez [ ]
---------- CHICAGO ----------
De Núñez, M.O., Davies, D., Spatz, L. "The life cycle of Zygocotyle lunata (Trematoda, Paramphistomoidea) in the subtropical region of South America" . Revista Mexicana de Biodiversidad 82, no. 2 (2011) : 581-588.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18703453_v82_n2_p581_DeNunez [ ]
---------- MLA ----------
De Núñez, M.O., Davies, D., Spatz, L. "The life cycle of Zygocotyle lunata (Trematoda, Paramphistomoidea) in the subtropical region of South America" . Revista Mexicana de Biodiversidad, vol. 82, no. 2, 2011, pp. 581-588.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18703453_v82_n2_p581_DeNunez [ ]
---------- VANCOUVER ----------
De Núñez, M.O., Davies, D., Spatz, L. The life cycle of Zygocotyle lunata (Trematoda, Paramphistomoidea) in the subtropical region of South America. Rev. Mex. Biodiversidad. 2011;82(2):581-588.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18703453_v82_n2_p581_DeNunez [ ]