Gut microbiota-metabolite dynamics in Sebastes schlegelii following Vibrio harveyi infection
文献类型： 外文期刊
作者： Gu, Yindong 1 ; Yu, Yongxiang 1 ; Wang, Chunyuan 1 ; Wang, Yingeng 1 ; Zhang, Zhiqi 1 ; Rong, Xiaojun 1 ; Liao, Meijie 1 ; Qin, Lei 1 ; Li, Bin 1 ; Zhang, Zheng 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, State Key Lab Mariculture Biobreeding & Sustainabl, Qingdao 266071, Peoples R China
2.Qingdao Marine Sci & Technol Ctr, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266237, Shandong, Peoples R China
3.Jiangsu Ocean Univ, Lianyungang, Peoples R China
关键词：
期刊名称：AQUACULTURE INTERNATIONAL （ 影响因子：2.4； 五年影响因子：2.7 ）
ISSN： 0967-6120
年卷期： 2025 年 33 卷 6 期
页码：
收录情况： SCI
摘要： Vibrio harveyi infection causes significant economic losses in Sebastes schlegelii aquaculture. The gut microbiota plays a crucial role in immune modulation and metabolic balance. This study investigated the dynamic changes and interactions between gut microbiota, metabolites, and immune gene expression at 24, 48, and 72 h post-infection. The results revealed that V. harveyi infection notably altered the gut microbiota composition, with an increase in pathogenic bacteria such as Vibrio and Pseudoalteromonas, while beneficial bacteria like Sphingomonas and Methylobacterium/Methylorubrum decreased. Metabolomic profiling showed significant changes in metabolites, particularly organic acids, lipids, and amino acids, especially at 48 and 72 h. Additionally, two key metabolites, Trans-Cinnamic acid and Dioctyl succinate, were significantly correlated with both gut microbiota composition and immune regulation. qPCR analysis indicated that pro-inflammatory cytokines TNF-alpha, IL-1 beta, and IL-6 peaked at 48 h and then declined, while gut barrier-related genes, including occludin, ZO-1, and claudin-1, showed continuous downregulation.
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