Aeromonas allosaccharophila, an emerging opportunist pathogen for farmed hybrid sturgeon (Acipenser baerii × Acipenser schrencki), in southwest China

Files
33612.pdf (2.95 MB)
Date
2022
Authors
Huang, Ya
Liu, Hongli
Geng, Yi
Chen, Defang
Ouyang, Ping
Yang, Shiyong
Yin, Lizi
Luo, Wei
Wang, Jun
Huang, Xiaoli
Contributor
Advisor
Department
Instructor
Depositor
Speaker
Researcher
Consultant
Interviewer
Journal Title
Journal ISSN
Volume Title
Publisher
Volume
74
Number/Issue
Starting Page
Ending Page
Alternative Title
Abstract
Aeromonas allosaccharophila belongs one of the causative agent of Aeromonas disease in teleosts. Here, we reported on multiple outbreaks of A. allosaccharophila with mortality up to 80% in farmed hybrid sturgeon in Sichuan, China, from 2019 to 2021. This was the first study to A. allosaccharophila from diseased hybrid sturgeons by phenotypic characterization and 16S rRNA analysis. The typical clinical signs of these fish were intestinal segments empty and often with yellow mucus or swelling. Histopathological observation of diseased fish infected with A. allosaccharophila showed the intestinal villus structure disappeared and the intestinal mucosa epithelium was necrotic and shed. Experimental infection indicated that A. allosaccharophila was the pathogen responsible for the mortalities. Antibiotic sensitivity test results showed that A. allosaccharophila was resistant to ampicillin, neomycin, tetracycline, and penicillin, while sensitive to sulfamethoxazole, streptomycin, florfenicol, enrofloxacin, and cefoxitin. Our findings provide references for the disease diagnosis and treatment.
Description
Keywords
Aeromonas allosaccharophila, hybrid sturgeon, 16S rRNA, pathologic lesions
Citation
URI
http://hdl.handle.net/10524/65479
Extent
11 pages
Format
Geographic Location
Time Period
Related To
The Israeli Journal of Aquaculture - Bamidgeh
Rights
Rights Holder
Collections
Volume 74, 2022
Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.