Host-parasite dialogue: fecundity compensation mechanisms of Fissurella crassa

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dc.contributor.authorGarcía-Huidobro, M. Roberto
dc.contributor.authorReyes, Miguel
dc.contributor.authorFuentes, Nelson Caro
dc.contributor.authorBruna, Tamara
dc.contributor.authorGuzmán-Rivas, Fabián
dc.contributor.authorUrzúa, Ángel
dc.contributor.authorPulgar, José
dc.contributor.authorAldana, Marcela
dc.date.accessioned2025-03-28T16:27:48Z
dc.date.available2025-03-28T16:27:48Z
dc.date.issued2023
dc.descriptionIndexación: Scopus
dc.description.abstractParasites can alter the reproductive performance of their hosts, and to avoid or mitigate the resulting fitness loss, hosts may increase their current reproductive output to compensate for the future loss due to the parasitic infection. Fecundity compensation can be exploited by parasites for their own transmission (exploitation of host compensatory responses by parasites). However, this phenomenon has rarely been reported in second intermediate hosts of trematodes and its mechanisms and consequences largely unexplored. Along the east coast of the South Pacific, the second intermediate host, the mollusk Fissurella crassa, has been observed to display higher muscular foot, greater shell length and weight, and a higher gonadosomatic index when parasitized by metacercariaes of Proctoeces humboldti compared to non-parasitized hosts. In this study, we examined the histology, biochemistry (glucose, lipids, and proteins), and levels of sex hormones (estradiol and progesterone) in both parasitized and non-parasitized female individuals of F. crassa. Our findings revealed that the gonad of parasitized limpets had a higher density of oocytes, but these had a smaller individual area. Additionally, the gonadal tissue of parasitized limpets exhibited lower glucose content but higher lipid content. Notably, the levels of progesterone increased with parasite intensity. These results suggest that F. crassa possesses the ability to compensate for the negative effects of parasites by increasing the number of oocytes through biochemical and hormonal mechanisms. Our study contributes to the limited research on the impact of metacercariae on the reproduction of second intermediate hosts. Furthermore, we discuss how these changes in parasitized limpets could benefit parasite transmission. Copyright © 2024 García-Huidobro, Reyes, Fuentes, Bruna, Guzmán-Rivas, Urzúa, Pulgar and Aldana.
dc.description.urihttps://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2023.1266405/full
dc.identifier.citationFrontiers in Marine Science. Volume 10. 2023. Article number 1266405
dc.identifier.doi10.3389/fmars.2023.1266405
dc.identifier.issn2296-7745
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/63895
dc.language.isoen
dc.publisherFrontiers Media SA
dc.rights.licenseAttribution 4.0 International Deed (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectBiochemical Responses
dc.subjectGonadal histology
dc.subjectProctoeces Humboldti
dc.subjectReproductive Performance
dc.subjectSecond Intermediate Host
dc.titleHost-parasite dialogue: fecundity compensation mechanisms of Fissurella crassa
dc.typeArtículo
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