The effect of teprenone on the intestinal morphology and microbial community of Chinese sea bass (Lateolabrax maculatus) under intermittent hypoxic stress
文献类型： 外文期刊
作者： Dong, Hong-biao 1 ; Sun, Yong-xu 2 ; Duan, Ya-fei 1 ; Li, Hua 1 ; Li, Yong 3 ; Liu, Qing-song 1 ; Wang, Wen-hao 4 ; Zhang 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab South China Sea Fishery Resources Exploit, South China Sea Fisheries Res Inst, Fisheries Engn Inst,Minist Agr & Rural Affairs, 231 West Xingang Rd, Guangzhou 510300, Peoples R China
2.Xiamen Univ, Coll Marine & Earth Sci, State Key Lab Marine Environm Sci, Xiamen, Peoples R China
3.Zhuhai Modern Agr Dev Ctr, Zhuhai, Guangdong, Peoples R China
4.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai, Peoples R China
关键词： Microbial community; Teprenone; Geranylgeranylacetone; Hypoxic stress; Lateolabrax maculatus
期刊名称：FISH PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：2.794； 五年影响因子：2.876 ）
ISSN： 0920-1742
年卷期： 2020 年 46 卷 5 期
页码：
收录情况： SCI
摘要： Hypoxia stress may affect the fish intestine and thereby threaten the growth and survival of the fish. Teprenone is a clinically effective agent in protecting gastrointestinal mucosa. This study aims to assess the effect of teprenone in the intestine of Chinese sea bassLateolabrax maculatusunder intermittent hypoxic stress.L. maculatusjuveniles were either raised under intermittent hypoxic condition or normal condition (NC). Part of the hypoxic-intervened fish were treated with teprenone at different concentrations (HTs), and the rest were regarded as hypoxic control (HC). Histological analysis was performed on the epithelial tissue of the fish intestine. High-throughput sequencing technology was used to analyze the diversity and composition of the microbial community inL. maculatusintestine. Reduced villi length and goblet cell, exfoliated enterocyte, and improper arrangement of villi were observed in HC compared with NC and HTs.Proteobacteria,Firmicutes, andBacteroidetesrepresented the most abundant phyla in each sample. Significantly higher microbial diversity was detected in HC compared with NC (P < 0.05). At the phylum level, HC presented significantly decreased relative abundance ofProteobacteria, and significantly increased relative abundance ofBacteroidetes,Chloroflex, andCyanobacteriacompared with NC (P < 0.05). At the class level, HC showed significantly reduced relative abundance ofAlphaproteobacteriaandBacilli, and significantly increased relative abundance ofClostridia,Gammaproteobacteria, andBacteroides(P < 0.05). Teprenone protects the intestine from epithelial damages and maintains the microbial harmony inL. maculatusunder intermittent hypoxic stress.
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