Metacercarial development of most Diplostomum species including D. pseudospathaceum occurs in the eye lenses of their fish hosts and is accompanied by radical morphological changes often referred to as metamorphosis. One of the structures undergoing substantial changes in D. pseudospathacewn are tegumental spines. The present study used phalloidin staining and confocal microscopy to examine these changes in D. pseudospathaceum over the course of development from 3-day-old to infective metacercariae. Although the general pattern of spination remained essentially unchanged, most larval spines continued growing in size until late in metacercarial development. From day 10 of development, larval spination was gradually replaced by small incipient definitive spines and the infective metacercariae had only definitive spination. The possible adaptive role of spines in developing metacercariae is discussed.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
In vitro culture and confocal microscopy study of Maritrema gratiosum Nicoll, 1907 (Digenea): From metacercaria to ovigerous adult.
Parasitol Res
January 2025
Institute of Aquaculture, University of Stirling, 5F.-2, No. 196, Sec. 2, Xinglong Rd., Wenshan Dist., Taipei City, 116096, Taiwan (R.O.C.).
This study set out to characterise the in vitro development, including musculature, of the microphallid parasite of the barnacle Semibalanus balanoides (Linnaeus, 1767), Maritrema gratiosum Nicoll, 1907 collected in Scotland. An in vitro culture model was developed to obtain ovigerous adults of M. gratiosum and their morphology was observed.
View Article and Find Full Text PDFGenetic Diversity and Population Dynamics of spp. Using Comprehensive Bioinformatics Approaches.
Vet Med Int
November 2024
Parasitology Unit, Department of Pathology and Biomarkers in Animal Parasitology Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
Article Synopsis
- The study investigates the genetic diversity and population structure of a parasitic pathogen affecting freshwater fish, which has been previously under-researched globally.
- By analyzing specific genetic markers (18S rDNA and ITS genes), the researchers identified 12 distinct haplotypes and found significant genetic variation patterns among populations across different continents.
- Results indicate an expansion of populations in countries like India, America, and Kenya, highlighting the need for improved management strategies to control this parasite in aquaculture.
An innovative approach to control fish-borne zoonotic metacercarial infections in aquaculture by utilizing nanoparticles.
Sci Rep
October 2024
Parasitology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
Fish-borne zoonotic trematodes (FBZTs) pose significant health risks and economic challenges worldwide. This study investigated the prevalence of encysted metacercariae (EMCs) in Nile tilapia (Oreochromis niloticus) from two Egyptian governorates and evaluated the antiparasitic efficacy of chitosan, silver, and selenium nanoparticles against these parasites. A cross-sectional analysis of 453 O.
View Article and Find Full Text PDFClimatic variations and Fasciola: a review of impacts across the parasite life cycle.
Parasitol Res
August 2024
Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, 1988 Fitch Ave., St. Paul, MN, 55108, USA.
Fasciolosis, caused by the liver fluke Fasciola spp., is a significant parasitic disease of livestock and humans worldwide. Fasciola transmission and life cycle are highly dependent on climatic conditions, especially temperature and humidity.
View Article and Find Full Text PDFDevelopment and utilization of a visual loop-mediated isothermal amplification coupled with a lateral flow dipstick (LAMP-LFD) assay for rapid detection of Echinostomatidae metacercaria in edible snail samples.
Int J Food Microbiol
June 2024
Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand; Research and Innovation Unit for Diagnosis of Medical and Veterinary Important Parasites, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand. Electronic address:
Trematodes belonging to the family Echinostomatidae are food-borne parasites which cause echinostomiasis in animals and humans. This is a global public health issue, particularly in East and Southeast Asia. A method to detect the infective stage of Echinostomatidae species is required to prevent transmission to humans.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!