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Vibrio alginolyticus is one of ubiquitous pathogens infecting human and marine animals. Flagellins of bacteria play an important role in infecting animals and inducing host immune response. In the present research, flagellin flaC gene of V. alginolyticus strain HY9901 was cloned and expressed. The open reading frame of flaC gene contains 1155 bp and the(More)
The outer membrane proteins (OMPs) of the marine aquatic animal pathogen Vibrio alginolyticus play an important role in the virulence of the bacterium and are potential candidates for vaccine development. In this study, the major 35.6 kDa OMP of V. alginolyticus was isolated by gel excision from the crude OMP fraction from V. alginolyticus. The sequence of(More)
The cDNA of pearl oyster Pinctada fucata Hsp70 (designated PFHsp70) was cloned by EST and rapid amplification of cDNA ends (RACE) techniques. The full length of PFHsp70 cDNA was 2376 bp, consisting of a 5'-terminal untranslated region (UTR) of 89 bp, a 3' terminal UTR of 328 bp, and an open reading frame (ORF) of 1959 bp encoding a polypeptide of 652 amino(More)
The effects of a Chinese herbal mixture (CHM) composed of astragalus, angelica, hawthorn, Licorice root and honeysuckle on immune responses and disease resistant of Nile tilapia (Oreochromis niloticus GIFT strain) were investigated in present study. Fish were fed diets containing 0 (control), 0.5%, 1.0%, 1.5% or 2.0% CHM (w/w) for 4 weeks. And series of(More)
273 bacterial strains were isolated from 20 Chinese longsnout catfish samples. The biochemical characteristics of all strains conformed to the species description of Aeromonas veronii bv. veronii on the basis of Vitek GNI+ card. Furthermore, 16S rDNA, gyrB and rpoD sequences of the representative strain PY50 were sequenced and showed high similarity with A.(More)
Streptococcus agalactiae (group B streptococcus [GBS]) is a pathogen that causes meningoencephalitis in Nile tilapia (Oreochromis niloticus). Here, we reported the complete genome sequence of S. agalactiae strain ZQ0910, which was isolated from the GIFT strain of Nile tilapia in Guangdong, China.
Streptococcus iniae is a major pathogen that causes sever economic losses in tilapia aquaculture. A set of four specific primers was designed by targeting lctO gene. With Bst DNA polymerase, the target DNA can be clearly amplified for 60 min at 64 °C in a simple water bath. The sensitivity of the LAMP assay for the detection of S. iniae is about 12.4 cells(More)
VP5 is an outer capsid protein of grass carp reovirus (GCRV). It is predicted to involve in helping GCRV enter the host cells. In this study, the full-length vp5 gene (accession number in GenBank: JN206664.1) was cloned from GCRV strain GCRV096, which was isolated from diseased grass carp (Ctenopharyngodon idella) in southern China by RT-PCR technique using(More)
The cDNA of a tandem-repeat galectin from the pearl oyster Pinctada fucata (designated PfGal) was cloned by expressed sequence tag (EST) and rapid amplification of cDNA ends (RACE) techniques. The full-length cDNA of PfGal was 1386bp, consisting of a 5' untranslated region (UTR) of 26bp, a 3' UTR of 313bp, and an open reading frame (ORF) of 1047bp encoding(More)
The outer membrane proteins of Vibrio alginolyticus play an important role in the virulence of the bacterium and are potential candidates for vaccine development. In the present study, the ompW gene was cloned, expressed and purified. A DNA vaccine was constructed by inserting the ompW gene into a pcDNA plasmid. Crimson snapper Lutjanus erythropterus(More)