Tags

Type your tag names separated by a space and hit enter

Temporal variation of Meiogymnophallus minutus infections in the first and second intermediate host.
J Helminthol. 2010 Dec; 84(4):362-8.JH

Abstract

In order to study seasonal patterns of Meiogymnophallus minutus infections in its intermediate hosts, bivalve samples were collected monthly between April 2008 and March 2009 from a high intertidal flat at Courtmacsherry Bay, Ireland. Infection rates in the first intermediate host Scrobicularia plana did not fluctuate significantly with season. Completely developed M. minutus cercariae appeared in daughter sporocysts from June and prevailed from July to October, indicating that transmission of M. minutus from its first to its second intermediate host is confined to this period of the year. All analysed individuals of the second intermediate host Cerastoderma edule were found to be infected with metacercariae. Infection levels significantly increased in September, suggesting recent cercarial invasions. Throughout the year, the majority of metacercariae were hyperinfected by the pathogenic microsporidian Unikaryon legeri. Spreading of hyperinfections was confined to spring and summer. Newly settled metacercariae were not affected by hyperparasitism and presumably retained their infectivity for half a year. Our findings suggest that the spreading of hyperinfections is correlated with higher water temperatures and that the entire metacercarial population has to rebuild every year as a consequence of hyperparasite-induced mortality.

Authors+Show Affiliations

Department of Zoology, Ecology and Plant Science, University College Cork, Distillery Fields, North Mall, Cork, Ireland. j.fermer@mars.ucc.ieNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

20113534

Citation

Fermer, J, et al. "Temporal Variation of Meiogymnophallus Minutus Infections in the First and Second Intermediate Host." Journal of Helminthology, vol. 84, no. 4, 2010, pp. 362-8.
Fermer J, Culloty SC, Kelly TC, et al. Temporal variation of Meiogymnophallus minutus infections in the first and second intermediate host. J Helminthol. 2010;84(4):362-8.
Fermer, J., Culloty, S. C., Kelly, T. C., & O'Riordan, R. M. (2010). Temporal variation of Meiogymnophallus minutus infections in the first and second intermediate host. Journal of Helminthology, 84(4), 362-8. https://doi.org/10.1017/S0022149X09990708
Fermer J, et al. Temporal Variation of Meiogymnophallus Minutus Infections in the First and Second Intermediate Host. J Helminthol. 2010;84(4):362-8. PubMed PMID: 20113534.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Temporal variation of Meiogymnophallus minutus infections in the first and second intermediate host. AU - Fermer,J, AU - Culloty,S C, AU - Kelly,T C, AU - O'Riordan,R M, Y1 - 2010/02/01/ PY - 2010/2/2/entrez PY - 2010/2/2/pubmed PY - 2011/2/24/medline SP - 362 EP - 8 JF - Journal of helminthology JO - J. Helminthol. VL - 84 IS - 4 N2 - In order to study seasonal patterns of Meiogymnophallus minutus infections in its intermediate hosts, bivalve samples were collected monthly between April 2008 and March 2009 from a high intertidal flat at Courtmacsherry Bay, Ireland. Infection rates in the first intermediate host Scrobicularia plana did not fluctuate significantly with season. Completely developed M. minutus cercariae appeared in daughter sporocysts from June and prevailed from July to October, indicating that transmission of M. minutus from its first to its second intermediate host is confined to this period of the year. All analysed individuals of the second intermediate host Cerastoderma edule were found to be infected with metacercariae. Infection levels significantly increased in September, suggesting recent cercarial invasions. Throughout the year, the majority of metacercariae were hyperinfected by the pathogenic microsporidian Unikaryon legeri. Spreading of hyperinfections was confined to spring and summer. Newly settled metacercariae were not affected by hyperparasitism and presumably retained their infectivity for half a year. Our findings suggest that the spreading of hyperinfections is correlated with higher water temperatures and that the entire metacercarial population has to rebuild every year as a consequence of hyperparasite-induced mortality. SN - 1475-2697 UR - https://www.unboundmedicine.com/medline/citation/20113534/Temporal_variation_of_Meiogymnophallus_minutus_infections_in_the_first_and_second_intermediate_host_ L2 - https://www.cambridge.org/core/product/identifier/S0022149X09990708/type/journal_article DB - PRIME DP - Unbound Medicine ER -