Perkinsus marinus in pleasure oyster Crassostrea corteziensis from Nayarit, Pacific coast of México

Journal of Invertebrate Pathology
Jorge Cáceres-MartínezM A del Río Portilla

Abstract

Culture of the pleasure oyster Crassostrea corteziensis is emerging as an alternative to the Pacific oyster (Crassostrea gigas) for oyster producers, who face severe mortalities since 1997 in Northwest México. For determining the health status of this species, we conducted a histopathological analysis of cultured populations from two estuaries in the Pacific coast of México. Macroscopical analysis revealed animals with transparent and retracted mantle. Histopathological analysis of these specimens showed tissue alterations and parasitic forms consistent with Perkinsus sp. infection. Stages of the parasite identified included tomont and trophozoites with an eccentric vacuole characteristic of Perkinsus spp. Pieces of tissues of infected oysters were incubated in Fluid Thioglycollate Medium (FTM) resulting in blue-black hypnospores after incubation. The identity of the parasite was confirmed by species specific PCR-based assay in DNA samples from oysters, tissue fractions from FTM cultures, and deparaffined samples with Perkinsus-like parasite detected by histology. Sequencing of positive amplified fragments (307bp) showed a sequence similar to Perkinsus marinus strain TXsc NTS ribosomal RNA gene (100% coverage and 98% identity, ...Continue Reading

Citations

Jun 24, 2014·PloS One·José A Fernández RobledoNicholas R Record
Feb 18, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Ximing Guo, Susan E Ford
Jul 7, 2015·Journal of Invertebrate Pathology·C J RodgersP M Hine
Jan 25, 2011·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Peter C ThompsonMatthew P Hare
Apr 1, 2014·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Peter C ThompsonMatthew P Hare
Apr 3, 2012·Journal of Invertebrate Pathology·Jorge Cáceres-MartínezRyan B Carnegie
Oct 23, 2014·PloS One·Yesmalie Alemán Resto, José A Fernández Robledo
Feb 18, 2014·International Journal for Parasitology. Drugs and Drug Resistance·Surekha ShridharJosé A Fernández Robledo
Jul 13, 2016·Journal of Invertebrate Pathology·Jorge Cáceres-MartínezRebeca Vásquez-Yeomans
Mar 30, 2018·Journal of Aquatic Animal Health·Jorge Cáceres-MartínezCarlos Reyes-Roel
Jan 1, 2011·Journal of Aquatic Animal Health·Jorge Cáceres-MartínezGloria Padilla-Lardizábal
Mar 28, 2020·Diseases of Aquatic Organisms·María Fernanda Martínez-GarcíaJorge Eduardo Chávez-Villalba
Nov 8, 2017·International Journal for Parasitology·Katrina M Pagenkopp LohanGregory M Ruiz

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