Diplostomum-induced sac formation in lenses of Ameiurus bullheads: A host defence response?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F25%3A00619787" target="_blank" >RIV/68081766:_____/25:00619787 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/25:00141068

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/jfd.14137" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/jfd.14137</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jfd.14137" target="_blank" >10.1111/jfd.14137</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Diplostomum-induced sac formation in lenses of Ameiurus bullheads: A host defence response?

Popis výsledku v původním jazyce

Trematodes of the genus Diplostomum (Diplostomidae) are widely distributed and significant fish pathogens known for causing a range of negative effects. Any mechanism that protects the host from the parasite thus represents an evolutionary advantage. In this study, we observed an unusual localisation of Diplostomum metacercariae, which were displaced into the sac protruding from the lens, in North-American bullhead catfish species of the genus Ameiurus. The occurrence of the sac was found in all sampling sites (Czech Republic) where A. nebulosus and A. melas were infected with Diplostomum, regardless of the parasite species, as both D. pseudospathaceum and D. spathaceum induced sac formation. The probability of sac formation increased with the intensity of Diplostomum infection. Experimental infection of juvenile A. melas showed that the first signs of sac formation appeared shortly after the infection. While visual observation under the light microscope suggested the first signs at 7 days post-infection, histological examination documented the start of epithelial proliferation by the third day post-infection. Our study suggests that the process of sac formation, along with parasite displacement, might present a host reaction to mitigate the negative effects of infection and the impaired vision caused by the parasite.

Název v anglickém jazyce

Diplostomum-induced sac formation in lenses of Ameiurus bullheads: A host defence response?

Popis výsledku anglicky

Trematodes of the genus Diplostomum (Diplostomidae) are widely distributed and significant fish pathogens known for causing a range of negative effects. Any mechanism that protects the host from the parasite thus represents an evolutionary advantage. In this study, we observed an unusual localisation of Diplostomum metacercariae, which were displaced into the sac protruding from the lens, in North-American bullhead catfish species of the genus Ameiurus. The occurrence of the sac was found in all sampling sites (Czech Republic) where A. nebulosus and A. melas were infected with Diplostomum, regardless of the parasite species, as both D. pseudospathaceum and D. spathaceum induced sac formation. The probability of sac formation increased with the intensity of Diplostomum infection. Experimental infection of juvenile A. melas showed that the first signs of sac formation appeared shortly after the infection. While visual observation under the light microscope suggested the first signs at 7 days post-infection, histological examination documented the start of epithelial proliferation by the third day post-infection. Our study suggests that the process of sac formation, along with parasite displacement, might present a host reaction to mitigate the negative effects of infection and the impaired vision caused by the parasite.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

<a href="/cs/project/GA20-29111S" target="_blank" >GA20-29111S: Parazitace nepůvodních ryb místními parazity: klíčové faktory a vliv na původní ichtyofaunu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Fish Diseases

ISSN

0140-7775

e-ISSN

1365-2761

Svazek periodika

48

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

e14137

Kód UT WoS článku

001483361300001

EID výsledku v databázi Scopus

2-s2.0-105004577334