期刊
TOXINS
卷 2, 期 7, 页码 1676-1689出版社
MDPI AG
DOI: 10.3390/toxins2071676
关键词
antibacterial; channel catfish; chelerythrine; columnaris; ellagic acid; enteric septicemia of catfish; beta-glycyrrhetinic acid; sorgoleone; therapeutant; wogonin
The bacteria Edwardsiella ictaluri and Flavobacterium columnare cause enteric septicemia and columnaris disease, respectively, in channel catfish (Ictalurus punctatus). Natural therapeutants may provide an alternative to current management approaches used by producers. In this study, a rapid bioassay identified plant compounds as potential therapeutants. Chelerythrine chloride and ellagic acid were the most toxic toward E. ictaluri, with 24-h IC50 of 7.3 mg/L and 15.1 mg/L, respectively, and MIC of 2.1 mg/L and 6.5 mg/L, respectively. Chelerythrine chloride, ellagic acid, beta-glycyrrhetinic acid, sorgoleone, and wogonin were the most toxic towards two genomovars of F. columnare, and wogonin had the strongest antibacterial activity (MIC = 0.3 mg/L).
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