This is the first report of Perkinsus sp. (Bivalvia: Veneridae) infecting wild clams of the species Anomalocardia brasiliana in Brazil. The gill lamellae and rectum of 150 specimens of A. brasiliana collected in the Timonha river estuary (Ceará, Northeastern Brazil) in March 2012 were incubated in Ray's fluid thioglycollate medium (RFTM) for detection of Perkinsus sp. In RFTM, the prevalence of Perkinsus sp. was 14.7% (22/150) and the intensity of infection ranged from very light (1-10 cells across the slide) to light (12-100 cells). The presence of Perkinsus sp. was confirmed by PCR in seven (31.8%) out of 22 RFTM-positive specimens. DNA sequencing confirmed the presence of the genus Perkinsus and the phylogenetic analysis strongly indicated Perkinsus beihaiensis as the species responsible for the infection.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.exppara.2014.07.012 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Strain-specific virulence of Perkinsus marinus and related species in Eastern oysters: A comprehensive analysis of immune responses and mortality.
Fish Shellfish Immunol
January 2025
Department of Aquatic Life Medicine, College of Ocean and Biosciences, Kunsan National University, Gunsan, 54150, Republic of Korea; Research Institute of Fisheries Science in Offshore Wind Farm (RIFSO), Kunsan National University, 558 Daehakro, Gunsan, 54150, Republic of Korea. Electronic address:
In this study, we investigated the variability in virulence among different strains of Perkinsus marinus and other Perkinsus species in Eastern oysters (Crassostrea virginica), examining the immune responses and mortality rates of oysters exposed to different Perkinsus isolates. Compared with the other assessed strains, P. marinus strain ATCC 50787 was found to induce significantly (P < 0.
View Article and Find Full Text PDFDifferences in phagosome acidification of Manila clam hemocytes in response to two Perkinsus species with contrasting proliferation dynamics in the host: P. olseni and P. mediterraneus.
J Invertebr Pathol
November 2024
Laboratory of Fish Diseases, Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan. Electronic address:
Understanding the factors determining the host ranges of Perkinsus spp., a significant group of pathogenic protozoans affecting shellfish, is essential for preventing their spread and designing effective control measures. Considering that differences in the ability to proliferate within the host may influence the determination of host range, we first injected six Perkinsus spp.
View Article and Find Full Text PDFCo-infection is linked to infection prevalence and intensity in oysters amidst high environmental and spatial variation.
J Invertebr Pathol
November 2024
Smithsonian Environmental Research Center, 647 Contees Wharf Rd, Edgewater, MD, United States.
Co-infecting parasites modify infection outcomes in the wild. However, it is unclear how multiple environmental factors influence co-infection. The Chesapeake Bay metapopulation of the eastern oyster, Crassostrea virginica, provides an opportunity to test the importance of co-infection across heterogeneous environments because multiple parasites infect oysters across a broad salinity gradient.
View Article and Find Full Text PDFRapid expansion and ecosystem health risk of invasive biopollutants dispersed by maritime traffic in French Polynesia.
Mar Pollut Bull
November 2024
Centre de Recherche Insulaire et Observatoire de l'Environnement, Moorea, French Polynesia; USR3278 CRIOBE EPHE-CNRS-UPVD, 66860 Perpignan, France.
The introduction of biopollutant species challenge ecosystem health and economy in remote islands. Here we checked the advance of invasive fouling species in five French Polynesian islands. Expansion of invasive species (Acantophora spicifera, Bugula neritina, Chthamalus proteus, Dendostrea frons) was detected using individual barcoding (COI for animals, RBLC for algae), and metabarcoding on biofouling (COI and 18S sequences).
View Article and Find Full Text PDFFirst report of Perkinsus marinus occurrence associated with wild Pacific oysters Crassostrea gigas from the west coast of Korea.
J Invertebr Pathol
June 2024
Department of Aquatic Life Medicine, College of Ocean Science and Technology, Kunsan National University, 558 Daehakro, Gunsan 54150, Republic of Korea; Research Institute of Fisheries in Offshore Wind Farm (RIFO), Kunsan National University, 558 Daehakro, Gunsan 54150, Republic of Korea. Electronic address:
This study reports the occurrence of Perkinsus marinus associated with wild Pacific oyster (Crassostrea gigas) specimens collected along the west coast of Korea. Confirmation of P. marinus presence was achieved by conventional PCR using World Organization of Animal Health (WOAH)-recommended primers that specifically targeted regions of the rDNA locus (ITS1, 5.
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!