{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T01:31:46Z","timestamp":1788571906769,"version":"build-2803163510"},"reference-count":47,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2021,1,20]],"date-time":"2021-01-20T00:00:00Z","timestamp":1611100800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Vet. Sci."],"abstract":"<jats:p>The sea bass, <jats:italic>Lateolabrax maculatus<\/jats:italic> is commercially farmed in Zhuhai, located in the Guangdong Province of China. <jats:italic>L. maculatus<\/jats:italic> in aquaculture have suffered acute death, characterized by ulcerations on the body surface, congestion, and hemorrhage in internal organs such as liver, kidney, and spleen. The dominant infecting strain of bacteria isolated from the kidneys of diseased fish was identified as <jats:italic>Aeromonas veronii<\/jats:italic> (strain 18BJ181). This identification was based on analysis of morphological, physiological, and biochemical features, as well as 16S rRNA and <jats:italic>gyrB<\/jats:italic> gene sequences. Drug sensitivity testing showed that the strain 18BJ181 isolate was resistant to four antibacterial drugs, including amoxicillin, madinomycin, penicillin and sulfamethoxazole, while moderately sensitive to erythromycin and rifampicin. The detection of growth characteristics showed that the strain 18BJ181 exhibited adaptability to the environment. In addition, some virulence genes, such as <jats:italic>aer, act, gcaT, tapA<\/jats:italic> and <jats:italic>fla<\/jats:italic>, were detected in the strain 18BJ181. The median lethal dosage of the strain 18BJ181 isolate in <jats:italic>L. maculatus<\/jats:italic> was 8.5 \u00d7 10<jats:sup>5<\/jats:sup> and 4.2 \u00d7 10<jats:sup>5<\/jats:sup> cfu\/g under the conditions of intraperitoneal injection and intramuscular injection, respectively. The experimentally induced infection showed that the 18BJ181 isolate caused considerable histological lesions in <jats:italic>L. maculatus<\/jats:italic>, including tissue degeneration, necrosis, and different degrees of hemorrhage. These results provided evidence for a more comprehensive understanding of <jats:italic>A. veronii<\/jats:italic> strain 18BJ181 infection in <jats:italic>L. maculatus<\/jats:italic>.<\/jats:p>","DOI":"10.3389\/fvets.2020.600587","type":"journal-article","created":{"date-parts":[[2021,1,20]],"date-time":"2021-01-20T07:09:01Z","timestamp":1611126541000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":52,"title":["A First Report of Aeromonas veronii Infection of the Sea Bass, Lateolabrax maculatus in China"],"prefix":"10.3389","volume":"7","author":[{"given":"Baotun","family":"Wang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Can","family":"Mao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan","family":"Feng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianmei","family":"Hu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Biao","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qunhong","family":"Gu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Youlu","family":"Su","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2021,1,20]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"399","DOI":"10.3390\/microorganisms8030399","article-title":"A case of Aeromonas trota in an immunocompromised patient with diarrhea","volume":"8","author":"Fernandez-Bravo","year":"2020","journal-title":"Microorganisms."},{"key":"B2","doi-asserted-by":"publisher","first-page":"734819","DOI":"10.1016\/j.aquaculture.2019.734819","article-title":"Virulence characteristics of Aeromonas veronii biovars isolated from infected freshwater goldfish (Carassius auratus)","volume":"518","author":"Shameena","year":"2020","journal-title":"Aquaculture."},{"key":"B3","doi-asserted-by":"publisher","first-page":"1725","DOI":"10.1007\/s10499-019-00429-8","article-title":"High mortalities caused by Aeromonas veronii:identification, pathogenicity, and histopathologicalstudies in Oreochromis niloticus","volume":"27","author":"El Latif","year":"2019","journal-title":"Aquaculture Int"},{"key":"B4","doi-asserted-by":"publisher","first-page":"382","DOI":"10.1590\/S1517-838220120001000046","article-title":"Characterization of pathogenic Aeromonas veronii bv. 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