Vibrio owensii CAIM 1854 = LMG 25443 strain DY05

Vibrio owensii strain DY05 (CAIM 1854 = LMG 25443) is a Gram-negative bacterium identified within the Changjiang estuary, specifically associated with coral-associated macroalgae in the intertidal zone of marine environments. This strain is classified as a facultative anaerobe, indicating its ability to thrive in varying oxygen conditions, which is advantageous in fluctuating marine habitats. V. owensii DY05 is mesophilic, suggesting optimal growth at moderate temperatures. It possesses a single replicon, reflecting a streamlined genomic organization typical of some bacterial species. The strain has been documented to infect various marine hosts, including Danio rerio (zebrafish), Penaeus vannamei (Pacific white shrimp), Panulirus ornatus (ornate rock lobster), Artemia (brine shrimp), and members of the Nephropidae family (lobsters). A significant health concern related to V. owensii DY05 is its pathogenicity, particularly associated with acute hepatopancreatic necrosis disease (AHPND), which affects aquatic animals. This disease is characterized by severe effects on the hepatopancreas, leading to high mortality rates in affected species. Understanding the ecological role and pathogenic potential of V. owensii DY05 is crucial, particularly given its presence in biodiversity-rich marine systems. The interactions between this bacterium, its algal symbionts, and various marine hosts highlight the complex dynamics within marine ecosystems, especially in relation to disease emergence and aquatic health management.