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Soft-shelled turtle iridovirus (STIV) is the causative agent of severe systemic diseases in cultured soft-shelled turtles (Trionyx sinensis). To our knowledge, the only molecular information available on STIV mainly concerns the highly conserved STIV major capsid protein. The complete sequence of the STIV genome is not yet available. Therefore, determining(More)
White Spot Syndrome Virus (WSSV) is the major viral pathogen of culture shrimp. Although remarkable progress has been made in characterizing the WSSV genome, information concerning the antiviral process of host is still limited. To identify the genes differentially expressed along with their expression profile in the hemocytes of the virus-resistant shrimp,(More)
Penaeid shrimp aquaculture has suffered from many diseases, especially from viral origin such as white spot syndrome virus (WSSV). In an attempt to obtain antiviral-relevant proteins, two peptides with molecular masses at 73 and 75kDa were isolated from shrimp Penaeus monodon using affinity chromatography coupled with the purified WSSV or a fish iridovirus(More)
Defensins are a group of small antimicrobial peptides playing an important role in innate host defense. In this study, a β-defensin cloned from liver of orange-spotted grouper, Epinephelus coioides, EcDefensin, showed a key role in inhibiting the infection and replication of two kinds of newly emerging marine fish viruses, an enveloped DNA virus of(More)
Toll-like receptors (TLRs) are a family of innate immune receptors that recognize molecular patterns associated with microbial pathogens (PAMP), and induce antimicrobial immune responses. Here we report the molecular cloning and characterization of a TLR22 homologue from the large yellow croaker (LycTLR22), an economically important marine fish in China.(More)
BACKGROUND MicroRNAs (miRNAs) are ubiquitous non-coding RNAs that regulate gene expression at the post-transcriptional level. An increasing number of studies has revealed that viruses can also encode miRNAs, which are proposed to be involved in viral replication and persistence, cell-mediated antiviral immune response, angiogenesis, and cell cycle(More)
UNLABELLED Iridoviruses are nucleocytoplasmic DNA viruses which cause great economic losses in the aquaculture industry but also show significant threat to global biodiversity. However, a lack of host cells has resulted in poor progress in clarifying iridovirus behavior. We investigated the crucial events during virus entry using a combination of(More)
L-type lectins are involved in glycoproteins secretory pathways and are associated with many immune responses. There is growing evidence that L-type lectins are also involved in viral replication. In this study, a novel L-type lectin (named as PcL-lectin) was identified from red swamp crayfish (Procambarus clakii). Gene sequencing and phylogenetic tree(More)
Orange-spotted grouper (Epinephelus coioides) is an economically important marine fish cultured in China and Southeast Asian countries. The emergence of infectious viral diseases, including iridovirus and betanodavirus, have severely affected food products based on this species, causing heavy economic losses. Limited available information on the genomics of(More)
A Gram-negative, obligately anaerobic, non-spore-forming, long rod-shaped bacterium strain P2(T) was isolated from the offshore mangrove sediment of the South China Sea. Growth was observed at between 22 and 39 °C, with an optimum at 35 °C. The pH range for growth was 5.0-8.5, with an optimum around pH 7.0-7.5. Salt tolerance was determined between 0.2 and(More)