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Maritrema orensense and Maritrema bonaerense (Digenea: Microphallidae): descriptions, life cycles, and comparative morphometric analyses.
J Parasitol. 2013 Apr; 99(2):218-28.JP

Abstract

We elucidate the life cycle of Maritrema orensense for the first time and experimentally confirm that of the sympatric Maritrema bonaerense. In Argentinean estuaries, both species parasitize the cochliopid snail Heleobia australis as first intermediate host, the grapsid crabs Neohelice granulata and Cyrtograpsus angulatus as second intermediate hosts, and gulls as definitive hosts. Here, we describe the daughter sporocysts and cercariae of M. orensense and redescribe these stages for M. bonaerense. Sporocysts of M. orensense are shorter, with fewer developed cercariae than M. bonaerense. The cercariae of M. orensense have longer, larger, and more undulating cephalic glands than M. bonaerense. We redescribe metacercariae and adults of both species and compare them with the previous descriptions. Intestinal ceca length, vitellaria shape and extension, and egg size are the most relevant characteristics in metacercariae and adults for differentiating the species. Hence, the detailed morphological description and comparative analyses of morphometrics obtained from natural and experimental infections permit clear differentiation of M. orensense and M. bonaerense at each life stage.

Authors+Show Affiliations

Centro de Estudios Parasitológicos y de Vectores, Consejo Nacional del Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT La Plata-CONICET-UNLP), Calle 2 No. 584, 1900, La Plata, Argentina. pilaralda@fcnym.unlp.edu.arNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22988841

Citation

Alda, Pilar, et al. "Maritrema Orensense and Maritrema Bonaerense (Digenea: Microphallidae): Descriptions, Life Cycles, and Comparative Morphometric Analyses." The Journal of Parasitology, vol. 99, no. 2, 2013, pp. 218-28.
Alda P, Bonel N, Hechinger RF, et al. Maritrema orensense and Maritrema bonaerense (Digenea: Microphallidae): descriptions, life cycles, and comparative morphometric analyses. J Parasitol. 2013;99(2):218-28.
Alda, P., Bonel, N., Hechinger, R. F., & Martorelli, S. R. (2013). Maritrema orensense and Maritrema bonaerense (Digenea: Microphallidae): descriptions, life cycles, and comparative morphometric analyses. The Journal of Parasitology, 99(2), 218-28. https://doi.org/10.1645/GE-3238.1
Alda P, et al. Maritrema Orensense and Maritrema Bonaerense (Digenea: Microphallidae): Descriptions, Life Cycles, and Comparative Morphometric Analyses. J Parasitol. 2013;99(2):218-28. PubMed PMID: 22988841.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Maritrema orensense and Maritrema bonaerense (Digenea: Microphallidae): descriptions, life cycles, and comparative morphometric analyses. AU - Alda,Pilar, AU - Bonel,Nicolás, AU - Hechinger,Ryan F, AU - Martorelli,Sergio R, Y1 - 2012/09/18/ PY - 2012/9/20/entrez PY - 2012/9/20/pubmed PY - 2013/6/13/medline SP - 218 EP - 28 JF - The Journal of parasitology JO - J. Parasitol. VL - 99 IS - 2 N2 - We elucidate the life cycle of Maritrema orensense for the first time and experimentally confirm that of the sympatric Maritrema bonaerense. In Argentinean estuaries, both species parasitize the cochliopid snail Heleobia australis as first intermediate host, the grapsid crabs Neohelice granulata and Cyrtograpsus angulatus as second intermediate hosts, and gulls as definitive hosts. Here, we describe the daughter sporocysts and cercariae of M. orensense and redescribe these stages for M. bonaerense. Sporocysts of M. orensense are shorter, with fewer developed cercariae than M. bonaerense. The cercariae of M. orensense have longer, larger, and more undulating cephalic glands than M. bonaerense. We redescribe metacercariae and adults of both species and compare them with the previous descriptions. Intestinal ceca length, vitellaria shape and extension, and egg size are the most relevant characteristics in metacercariae and adults for differentiating the species. Hence, the detailed morphological description and comparative analyses of morphometrics obtained from natural and experimental infections permit clear differentiation of M. orensense and M. bonaerense at each life stage. SN - 1937-2345 UR - https://www.unboundmedicine.com/medline/citation/22988841/Maritrema_orensense_and_Maritrema_bonaerense__Digenea:_Microphallidae_:_descriptions_life_cycles_and_comparative_morphometric_analyses_ L2 - http://www.journalofparasitology.org/doi/10.1645/GE-3238.1?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -