Results 11 to 20 of about 127 (121)

Species which may act as vectors or reservoirs of diseases covered by the Animal Health Law: Listed pathogens of molluscs

EFSA Journal, 2023
Vector or reservoir species of five mollusc diseases listed in the Animal Health Law were identified, based on evidence generated through an extensive literature review, to support a possible updating of Regulation (EU) 2018/1882.
EFSA Panel on Animal Health and Welfare (AHAW), Søren Saxmose Nielsen, Julio Alvarez, Dominique Bicout, Paolo Calistri, Elisabetta Canali, Julian Ashley Drewe, Bruno Garin‐Bastuji, José Louis Gonzales Rojas, Christian Gortazar Smith, Mette Herskin, Virginie Michel, Miguel Angel Miranda Chueca, Barbara Padalino, Helen Roberts, Hans Spoolder, Karl Ståhl, Antonio Velarde, Arvo Viltrop, Christoph Winckler, Isabelle Arzul, Shetty Dharmaveer, Niels Jørgen Olesen, Morten Schiøtt, Hilde Sindre, David Stone, Niccoló Vendramin, Sotiria‐Eleni Antoniou, Sofie Dhollander, Anna Eleonora Karagianni, Linnea Lindgren Kero, Marzia Gnocchi, Inma Aznar, Fulvio Barizzone, Irene Pilar Munoz Guajardo, Helen Roberts   +35 more
doaj   +2 more sources

Risk‐based valuation of surveillance data in open environments: Methods application to a key shellfish aquaculture production region

Journal of the World Aquaculture Society
Disease freedom surveillance is challenging in settings where environmental conditions and population health can change abruptly. We propose a novel approach to freedom evaluation that is specifically suited to open environments.
Lori Gustafson, Marta Remmenga, Clara Duncan, Clayton Bliss, David Bushek, Ryan B. Carnegie, Cem Giray, Ted Meyers, Katherine Davis, Kathleen Hartman, Ralph Elston   +10 more
doaj   +2 more sources

Biochemical Characterization of Oyster and Clam Galectins: Selective Recognition of Carbohydrate Ligands on Host Hemocytes and Perkinsus Parasites

Frontiers in Chemistry, 2020
Both vertebrates and invertebrates display active innate immune mechanisms for defense against microbial infection, including diversified repertoires of soluble and cell-associated lectins that can effect recognition and binding to potential pathogens ...
Gerardo R. Vasta, Chiguang Feng, Satoshi Tasumi, Kelsey Abernathy, Mario A. Bianchet, Iain B. H. Wilson, Katharina Paschinger, Lai-Xi Wang, Muddasar Iqbal, Anita Ghosh, Mohammed N. Amin, Brina Smith, Brina Smith, Sean Brown, Sean Brown, Aren Vista, Aren Vista   +16 more
doaj   +1 more source

Perkinsus marinus in Crassostrea gigas in the Gulf of California [PDF]

Diseases of Aquatic Organisms, 2010
To determine the agent responsible for the massive mortalities of the Pacific oyster Crassostrea gigas in northwest Mexico, 30 oysters were sampled after a severe mortality event in 2006 along the Sonoran coast. Histological analyses revealed the presence of a protozoan and Ray's fluid thioglycollate medium (RFTM) assays showed the presence of ...
T L, Enríquez-Espinoza, J M, Grijalva-Chon, R, Castro-Longoria, J, Ramos-Paredes   +3 more
openaire   +2 more sources

CRISPR/Cas9 Ribonucleoprotein-Based Genome Editing Methodology in the Marine Protozoan Parasite Perkinsus marinus

Frontiers in Bioengineering and Biotechnology, 2021
Perkinsus marinus (Perkinsozoa), a close relative of apicomplexans, is an osmotrophic facultative intracellular marine protozoan parasite responsible for “Dermo” disease in oysters and clams.
Raghavendra Yadavalli, Kousuke Umeda, Kousuke Umeda, Hannah A. Waugh, Hannah A. Waugh, Adrienne N. Tracy, Adrienne N. Tracy, Asha V. Sidhu, Asha V. Sidhu, Derek E. Hernández, Derek E. Hernández, José A. Fernández Robledo   +11 more
doaj   +1 more source

The characterization of toll‐like receptor repertoire in Pinna nobilis after mass mortality events suggests adaptive introgression

Ecology and Evolution, Volume 13, Issue 8, August 2023., 2023
The endemic Mediterranean mussel Pinna nobilis struggles to cope with mass mortality events that are likely caused by the protozoan parasite Haplosporidium pinna. As the congeneric species Pinna rudis and P. nobilis × P. rudis hybris are naturally resistant to the pathogen, we performed a comparative analysis on 14 toll‐like receptor loci, between ...
Stéphane Coupé, Ioannis A. Giantsis, Maite Vázquez Luis, Fabio Scarpa, Mathieu Foulquié, Jean‐Marc Prévot, Marco Casu, Athanasios Lattos, Basile Michaelidis, Daria Sanna, José Rafa García‐March, José Tena‐Medialdea, Nardo Vicente, Robert Bunet   +13 more
wiley   +1 more source

Environmental refuges from disease in host–parasite interactions under global change

Ecology, Volume 104, Issue 4, April 2023., 2023
Abstract The physiological performance of organisms depends on their environmental context, resulting in performance–response curves along environmental gradients. Parasite performance–response curves are generally expected to be broader than those of their hosts due to shorter generation times and hence faster adaptation.
Alena S. Gsell, Arjen Biere, Wietse de Boer, Irene de Bruijn, Götz Eichhorn, Thijs Frenken, Stefan Geisen, Henk van der Jeugd, Kyle Mason‐Jones, Annelein Meisner, Madhav P. Thakur, Ellen van Donk, Mark P. Zwart, Dedmer B. Van de Waal   +13 more
wiley   +1 more source

Heat shock proteins of the oyster parasite Perkinsus marinus [PDF]

Diseases of Aquatic Organisms, 1995
The susceptibility of the eastern oyster Crassostrea virginica to infection by the protozoan parasite Perlunsus mannus is Influenced by temperature Because of the crucial roles of heat shock proteins in cellular thermal tolerance and in host-parasite adaptations in other species we compared the in vitro heat shock responses of cultured P mannusand of ...
CT Tirard, RM Grossfeld, AK Volety, FLE Chu   +3 more
openaire   +1 more source

Chromosomal assembly of the flat oyster (Ostrea edulis L.) genome as a new genetic resource for aquaculture

Evolutionary Applications, Volume 15, Issue 11, Page 1730-1748, November 2022., 2022
Abstract The European flat oyster (Ostrea edulis L.) is a native bivalve of the European coasts. Harvest of this species has declined during the last decades because of the appearance of two parasites that have led to the collapse of the stocks and the loss of the natural oyster beds. O.
Isabelle Boutet, Homère J. Alves Monteiro, Lyam Baudry, Takeshi Takeuchi, Eric Bonnivard, Bernard Billoud, Sarah Farhat, Ricardo Gonzales‐Araya, Benoit Salaun, Ann C. Andersen, Jean‐Yves Toullec, François H. Lallier, Jean‐François Flot, Nadège Guiglielmoni, Ximing Guo, Cui Li, Bassem Allam, Emmanuelle Pales‐Espinosa, Jakob Hemmer‐Hansen, Pierrick Moreau, Martial Marbouty, Romain Koszul, Arnaud Tanguy   +22 more
wiley   +1 more source

A qPCR-Based Survey of Haplosporidium nelsoni and Perkinsus spp. in the Eastern Oyster, Crassostrea virginica in Maine, USA

Pathogens, 2020
Eastern oyster (Crassostrea virginica) aquaculture is increasingly playing a significant role in the state of Maine’s (USA) coastal economy. Here, we conducted a qPCR-based survey for Haplosporidium nelsoni, Perkinsus marinus, and Perkinsus chesapeaki in
Nicholas D. Marquis, Theodore J. Bishop, Nicholas R. Record, Peter D. Countway, José A. Fernández Robledo   +4 more
doaj   +1 more source