Genome data of shrimp acute hepatopancreatic necrosis disease causative strains isolated from South Korea aquaculture farms.

The is a gram-negative bacterium, which is responsible for acute hepatopancreatic necrosis disease (AHPND) in shrimp and has various virulent factors. So, to intensify the knowledge on pathogenic mechanism, the heterogeneous strains genome are indeed. Here, genome of seven strains, which are virulent to shrimps were sequenced by PacBio platform and the virulence was confirmed through the presence of plasmid (∼69 Kb) with binary toxin genes (i.

Effects on hematological parameters, antioxidant and immune responses, AChE, and stress indicators of olive flounders, Paralichthys olivaceus, raised in bio-floc and seawater challenged by Edwardsiella tarda.

Studies on the resistance of fish raised in bio-floc systems against bacterial infection are limited. We aimed to evaluate the changes in hematological parameters, antioxidant and immune responses, stress indicators, and acetylcholinesterase (AChE) in olive flounder, Paralichthys olivaceus, raised in bio-floc and seawater for 10 months and, then, infected with Edwardsiella tarda at concentrations of 0 (control), 6.61 × 10, 6.

Bacterial Community Dynamics in an Oyster Hatchery in Response to Probiotic Treatment.

Larval oysters in hatcheries are susceptible to diseases caused by bacterial pathogens, including spp. Previous studies have shown that daily addition of the probiotic RI06-95 to water in rearing tanks increases larval survival when challenged with the pathogen . We propose that the presence of probiotics causes shifts in bacterial community structure in rearing tanks, leading to a net decrease in the relative abundance of potential pathogens.

Identification of potential general markers of disease resistance in American oysters, Crassostrea virginica through gene expression studies.

Several diseases have a significant impact on American oyster populations in the Atlantic coasts of North America. Knowledge about the responses of oysters to pathogenic challenge could help in identifying potential markers of disease resistance and biomarkers of the health status of an oyster population. A previous analysis of the transcriptome of resistant and susceptible American oysters in response to challenge with the bacterial pathogen Roseovarius crassostreae, as well as sequencing of suppression subtractive hybridization libraries from oysters challenged with the protozoan parasite Perkinsus marinus, provided a list of genes potentially involved in disease resistance or susceptibility.