Assessment of Lactic Acid Bacteria Isolated from the Whiteleg Shrimp (Penaeus vannamei) as Potential Biocontrol against Pathogenic Vibrio | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Article 82, Volume 29, Issue 1, January and February 2025, Pages 1489-1501 PDF (261.51 K) | ||
| DOI: 10.21608/ejabf.2025.410871 | ||
| Author | ||
| Arofatullah et al. | ||
| Abstract | ||
| In aquaculture, the use of probiotics holds promise for disease prevention and nutritional enhancement. This study aimed to assess the inhibitory ability of lactic acid bacteria isolated from the hepatopancreas and intestine of healthy whiteleg shrimp (Penaeus vannamei) against prevalent shrimp pathogens. Four lactic acid bacteria were isolated from the hepatopancreas, while six isolates were obtained from the intestine. Molecular analysis, based on partial 16S rDNA gene sequencing and subsequent phylogenetic analyses, confirmed that nine isolates belonged to Pediococcus pentosaceus, while one isolate showed close relation to Weissella paramesenteroides. The cell-free supernatants from these isolates exhibited inhibitory effect against at least two of the three pathogenic Vibrio strains—Vibrio alginolyticus, Vibrio harveyi, and Vibrio parahaemolyticus. Among them, supernatants from three isolates displayed strong inhibitory responses against V. parahaemolyticus, while eight were strong against V. harveyi. Conversely, supernatants from seven isolates demonstrated medium inhibitory activity against V. alginolyticus. This investigation highlights the potential of these lactic acid bacteria isolates as promising biocontrol agents against pathogenic Vibrio in shrimp. | ||
| Keywords | ||
| Aquaculture; Biocontrol agents; Lactic acid bacteria; Pathogenic vibrio; Probiotics; Whiteleg shrimp | ||
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