Metaplasia of respiratory and digestive tissues in the eastern oyster Crassostrea virginica associated with the Deepwater Horizon oil spill

Autor: Laurie C. Anderson, Peter D. Roopnarine, Ji Hae Hwang, Deanne Roopnarine, Swati Patel
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Gills
Ecotoxicology
chemistry.chemical_compound
Oysters
Metaplasia
Medicine and Health Sciences
Petroleum Pollution
Respiratory system
Materials
Gulf of Mexico
Multidisciplinary
biology
Oil Spills
Stomach
Eukaryota
Pollution
Chemistry
Petroleum
Deepwater horizon
Physical Sciences
Medicine
Crassostrea
medicine.symptom
Anatomy
Cellular Structures and Organelles
Organic Materials
Eastern oyster
Research Article
Environmental Monitoring
Bivalves
animal structures
Histology
Science
Materials Science
Zoology
Gulfs
Bodies of water
medicine
Animals
Cilia
Chesapeake bay
Ecology and Environmental Sciences
Organisms
Chemical Compounds
Biology and Life Sciences
Molluscs
Cell Biology
biology.organism_classification
Invertebrates
Hydrocarbons
Marine and aquatic sciences
Gastrointestinal Tract
Earth sciences
chemistry
Vacuolization
Oil spill
Digestive tract
Digestive System
Water Pollutants
Chemical
Zdroj: PLoS ONE
PLoS ONE, Vol 16, Iss 9, p e0247739 (2021)
ISSN: 1932-6203
Popis: Metaplasia is a well documented and deleterious effect of crude oil components on bivalved molluscs, including oysters. This reversible transformation of one cell type to another, is a common response to petroleum-product exposure in molluscs. It has been shown experimentally in previous work that eastern oysters (Crassostrea virginica) exposed to petroleum products will exhibit metaplasia of digestive tissues. Here we document for the first time that wild adult oysters inhabiting coastal waters in the northern Gulf of Mexico during and in the aftermath of the Deepwater Horizon oil spill (2010) exhibited metaplasia in both ctenidia and digestive epithelia at significantly higher levels than geographic controls of C. virginica from Chesapeake Bay. Both ctenidial (respiratory and suspension feeding) and digestive tract tissues exhibited significantly higher frequencies of metaplasia in specimens from the Gulf of Mexico compared to those from Chesapeake Bay. Metaplasia included the loss of epithelial cilia, transformations of columnar epithelia, hyperplasia and reduction of ctenidial branches, and vacuolization of digestive tissues. Evidence for a reduction of metaplasia following the oil spill (2010-2013) is suggestive but equivocal.
Databáze: OpenAIRE
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