Authors
Euihyeon Lee, Kyun-Woo Lee, Junewoo Park, Min-Seok Kim, Sung-Hyun Yang, Yeong-Jun Park, Kae Kyoung Kwon, Hye-Min Kang
Published in
Fish & shellfish immunology. Pages 111653. Aug 17, 2026. Epub Aug 17, 2026.
Abstract
In the aquaculture industry, the survival rate of fish and shrimp larvae is critical, as various Vibrio species can cause disease and mortality. Larvae are often fed on live feed, such as Artemia, which can provide nutrients and probiotics, but may also act as a carrier for pathogens. In this study, we assessed the anti-Vibrio efficacy of Pseudomonas juntendi MaLMAid0250, isolated from Artemia franciscana rearing water, against V. alginolyticus, V. anguillarum, V. harveyi, V. parahaemolyticus, and V. proteolyticus. The results showed that P. juntendi MaLMAid0250 belongs to the P. putida group and exhibited 97.99% average nucleotide identity with the P. juntendi type strain. A significant quantitative inhibitory effect was observed in Artemia at specific concentrations against all Vibrio species, and supernatant antibacterial activity was observed against Vibrio species, except V. anguillarum. Furthermore, survival rate analysis of black scraper Thamnaconus modestus revealed that groups fed Artemia co-loaded with MaLMAid0250 and V. harveyi showed significantly improved survival compared to groups fed Vibrio-only-loaded Artemia. Gut microbiota analysis further revealed compositional shifts associated with improved survival outcomes. These results suggest that P. juntendi MaLMAid0250, a probiotic derived from Artemia rearing water, exhibits broad-spectrum inhibitory activity against Vibrio species and improves fish survival rate.
PMID:
42607970
Bibliographic data and abstract were imported from PubMed on 18 Aug 2026.
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