Tags » Pathogen

Seasonality of QPX disease in the Raritan Bay (NY) wild hard clam (Mercenaria mercenaria) population

Quahog Parasite Unknown (QPX) is a potentially lethal pathogen of the hard clam Mercenaria mercenaria along the northeastern coast of the United States. In the Raritan Bay wild clam population, QPX prevalence and infection intensity at three sites were examined by both histology and quantitative PCR in 2006. 143 more words

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The mussel Mytilus edulis L. as an important reservoir of infectious hypodermal and hematopoietic necrosis virus (IHHNV)

Infectious hypodermal and haematopoietic necrosis virus (IHHNV) is a shrimp pathogen that causes disease and consequently has a negative impact on the shrimp acquaculture economy. The IHHNV was first isolated in Hawaii in the early 1980s (Lightner, Redman & Bell 1983; Lightner, Redman, Bell & Brock 1983), and the virus is now recognized as one of the most prevalent shrimp pathogens (Dhar, Robles-Sikisaka, Saksmerprome & Lakshman 2014). 91 more words

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The B-cell translocation gene 1 (CgBTG1) identified in oyster Crassostrea gigas exhibit multiple functions in immune response

B-cell translocation gene 1 (BTG1) is a member of the anti-proliferative gene family, which plays important roles in regulation of cell cycle. In the present study, a B-cell translocation gene 1 molecule homologue (designed… 207 more words

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Vibrio crassostreae, a benign oyster colonizer turned into a pathogen after plasmid acquisition

Vibrios are frequently associated with oyster mortality; however whether they are the primary causative agent or secondary opportunistic colonizers is not well understood. Here we combine analysis of natural infection dynamics, population genomics and molecular genetics to ask (i) to what extent oysters are passively colonized by Vibrio population present in the surrounding water, (ii) how populations turn over during pathogenicity events and (iii) what genetic factors are responsible for pathogenicity. 125 more words

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Benzo[a]pyrene exposure under future ocean acidification scenarios weakens the immune responses of blood clam, Tegillarca granosa

Persistent organic pollutants (POPs) are known to converge into the ocean and accumulate in the sediment, posing great threats to marine organisms such as the sessile bottom burrowing bivalves. 194 more words

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