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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Isolation and characterization of Vibrio metschnikovii causing infection in farmed Portunus trituberculatus in China Wan, X.; Shen, H.; Wang, L.; Cheng, Y. (2011). Isolation and characterization of Vibrio metschnikovii causing infection in farmed Portunus trituberculatus in China. Aquacult. Int. 19(2): 351-359. https://dx.doi.org/10.1007/s10499-011-9422-3 In: Aquaculture International. Springer: London. ISSN 0967-6120; e-ISSN 1573-143X, meer Ook verschenen in: Le Vay, L.; Zeng, C.; Sorgeloos, P. (Ed.) (2011). International Symposium on aquaculture, biology and management of commercially important crabs. Aquaculture International, 19(2). Springer: Dordrecht. 215-394 pp., meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 354749 [ aanvragen ]

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Trefwoorden

Acids > Organic compounds > Organic acids > Nucleic acids > RNA Cultures > Shellfish culture > Crustacean culture > Crab culture Diseases > Infectious diseases Diseases > Infectious diseases > Viral diseases Farm ponds Microorganisms > Bacteria Water bodies > Inland waters > Ponds Portunus (Portunus) trituberculatus (Miers, 1876) [WoRMS] Marien/Kust

Author keywords

Portunus trituberculatus; Massive epizootic; Vibrio metschnikovii; 16SrRNA; Drug sensitivity test

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Auteurs		Top
Wan, X. Shen, H. Wang, L. Cheng, Y.

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Abstract

In August 2008, a massive epizootic occurred among Portunus trituberculatus reared together with Palaemon carincauda Holthuis and Sinonovacula constricta in the seawater pond of Ningang farm, Rudong district, Jiangsu province, China. The disease occurred in crabs from juveniles to adults, and the mortality rate reached 30-40%. The diseased crabs exhibited lethargy, hepatopancreas turgidity, and elevated levels of turbid hemolymph. A gram-negative, rod-shaped bacterium (designated as strain LGS-1) was isolated from the ascitic fluid of the diseased and moribund crabs and was confirmed as the causative agent by our infectivity study. We conducted morphological and biochemical characterization of LGS-1, and sequenced the 16S rRNA gene, which led us to identify the bacterium as Vibrio metschnikovii. Drug sensitivity tests showed that this pathogenic bacterium is sensitive to florfenicol, orfloxacin, and SXT, but completely resistant to antibacterial drugs like gentamicin, erythrocin, and acheomycin. This is the first report on Vibrio metschnikovii as a virulent pathogen for Portunus trituberculatus.

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