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Search, find, and penetrate: ultrastructural data of furcocercariae of Cardiocephaloides longicollis (Digenea, Strigeidae) explain their transmission and infection strategy into fish hosts
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SYSNO ASEP 0555512 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Search, find, and penetrate: ultrastructural data of furcocercariae of Cardiocephaloides longicollis (Digenea, Strigeidae) explain their transmission and infection strategy into fish hosts Tvůrce(i) Yoneva, Aneta (BC-A)
van Beest, Gabrielle Shira (BC-A) ORCID
Born-Torrijos, Ana (BC-A) RID, ORCIDCelkový počet autorů 3 Zdroj.dok. Parasitology Research. - : Springer - ISSN 0932-0113
Roč. 121, č. 3 (2022), s. 877-889Poč.str. 13 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova diplostomum pseudospathaceum niewiadomska ; 1984 cercariae digenea ; schistosoma-mansoni ; sensory receptors ; surface ultrastructure ; parasite transmission ; electron-microscopy ; alimentary-tract ; phoxini faust ; life-cycle ; Transmission strategy ; Trematode parasite ; Free-swimming larvae ; tem Vědní obor RIV EG - Zoologie Obor OECD Behavioral sciences biology CEP GJ20-14903Y GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora BC-A - RVO:60077344 UT WOS 000748160100001 EID SCOPUS 85123822026 DOI 10.1007/s00436-022-07448-0 Anotace The present study provides an overview of the structures linked to fish host finding, recognition, and invasion of one of the most commonly occurring morphotypes among trematodes, furcocercariae. For this, we use free-swimming cercariae of the strigeid Cardiocephaloides longicollis (Rudolphi 1819) Dubois, 1982. Their elongated cercarial body and bifurcated tail are covered by a tegument with an irregular surface, showing numerous folds arranged in different directions and a typical syncytial organization. Both the body and the bifurcated tail are covered with short spines, rose-thorn shaped, as well as four types of sensory papillae, distinguished by the presence or absence of a cilium, its length, and their position on the cercarial body. These papillae are especially important for free-living stages that rely on external stimuli to locate and adhere to the host. A specialized anterior organ is located at the anterior part of the cercariae and is encircled by a triangle-shaped group of enlarged pre-oral spines followed by a transverse row of enlarged post-oral spines that, together with the sensory papillae, allow active finding, recognition, and penetration into fish. The ventral sucker, covered with inner-oriented spines, sensory papillae, and cilia, helps during this process. The cercariae of C. longicollis possess three types of gland cells (a head gland and two types of penetration glands), each containing different types of secretory granules that play a role in host invasion. The protonephridial excretory system consists of an excretory bladder, a system of collecting tubules, flame cells, and two excretory pores in the middle of each furcae, which serve to control osmoregulation in their marine environment, as well as to eliminate metabolic waste. Together with the four types of sensory endings, the central ganglion forms the nervous system. Our results add novel information on the ultrastructure of strigeid furcocercariae, being essential to interpret these data in relation of their functional role to better understand the transmission and penetration strategies that cercariae display to infect their fish hosts. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2023 Elektronická adresa https://link.springer.com/article/10.1007/s00436-022-07448-0
Počet záznamů: 1