文献类型： 外文期刊
作者： Wei, Zhanfei 1 ; Meng, Lihui 2 ; Du, Sheng 1 ; Wang, Fang 3 ; Jiang, Aijun 4 ; Lu, Rui 5 ; Liu, Kaiqiang 1 ; Wang, Xinliang 3 ; Xu, Qingchang 3 ; Mu, Xiuxia 3 ; Meng, Liang 5 ; Shao, Changwei 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, State Key Lab Mariculture Biobreeding & Sustainabl, Qingdao, Peoples R China
2.Qingdao Agr Univ, Sch Marine Sci & Engn, Qingdao, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Polar Fishery, Minist Agr & Rural Affairs, Qingdao, Peoples R China
4.Shanghai Jiao Tong Univ, Int Ctr Deep Life Invest IC DLI, Shanghai, Peoples R China
5.BGI Res, Sanya, Peoples R China
关键词：
期刊名称：MSYSTEMS （ 影响因子：4.6； 五年影响因子：5.7 ）
ISSN：
年卷期： 2025 年
页码：
收录情况： SCI
摘要： Antarctic krill (Euphausia superba) plays crucial roles in the Southern Ocean biological system, yet the ecological functions of their gut microbiota remain poorly understood. The study investigated the composition and diversity of the gut microbiota in E. superba using 16S rRNA gene sequencing, revealing a highly diverse and tissue-specific microbiota. Further investigation through direct metagenomics and culture-enriched metagenomics identified 12 metagenome-assembled genomes (MAGs), which might represent novel species based on their phylogenetic positions, average nucleotide identity (ANI), average amino acid identity (AAI), and relative evolutionary divergence (RED) values. These MAGs were grouped into two distinct clusters according to their completeness of metabolic modules. Although MAGs in cluster 2 showed lower read relative abundance compared to those in cluster 1, they exhibited a greater number of amino acid synthesis modules. The synthesis of glutathione, heme, ubiquinone, vitamins, and betaine by MAGs suggested potential roles in enhancing survival of E. superba in extreme environment. Moreover, the functional genes in the 12 MAGs had abundant transcripts indicating they exhibited high metabolic activity in the E. superba gut microbiota. These findings shed new light on the metabolic contributions of gut microbiota in E. superba.IMPORTANCEThis study provided a comprehensive characterization of the gut microbiome of Euphausia superba, revealing its diverse and functionally distinct microbial community. Furthermore, 12 metagenome-assembled genomes (MAGs) representing novel species were successfully identified. The metabolic analysis demonstrated that these microbes contribute to host nutrient acquisition by synthesizing essential amino acids and vitamins. The identification of antioxidant and osmoregulatory compound synthesis modules suggested that gut microbiota might facilitate the survival of E. superba in the harsh Antarctic environment. Those findings elucidated the host-microbe interactions in polar marine ecosystems and provided new insights into microbial contributions to host nutrient cycling and environmental adaptation in the Southern Ocean.
- 相关文献
作者其他论文 更多>>
-
Flow Velocity Modulates Growth, Oxidative Stress, and Transcriptomic Responses in Spotted Sea Bass (Lateolabrax maculatus)
作者：Li, Shuo;Wang, Qian;Liu, Baoliang;Shao, Changwei;Li, Shuo;Liu, Yuyan;Wang, Qian;Zhu, Zhiwen;Li, Weijing;Li, Chen;Fei, Fan;Liu, Baoliang;Shao, Changwei;Liu, Yuyan;Wang, Qian;Shao, Changwei
关键词：Spotted sea bass; Flow velocity; Oxidative stress; Lipid metabolism; Transcriptomics
-
Near complete genome assembly of Yadong trout (Salmo trutta)
作者：Li, Chen;Han, Shenglei;Li, Shuo;Liu, Kaiqiang;Liu, Yuyan;Wang, Hong-yan;Wang, Qian;Liu, Changlin;Shao, Changwei;Li, Chen;Li, Chen;Han, Shenglei;Li, Shuo;Liu, Kaiqiang;Liu, Yuyan;Wang, Hong-yan;Wang, Qian;Liu, Changlin;Shao, Changwei;Liu, Kaiqiang;Liu, Yuyan;Wang, Hong-yan;Wang, Qian;Shao, Changwei
关键词：
-
Construction of P450 scaffold biocatalysts for the biodegradation of five chloroanilines
作者：Yang, Ridong;Wang, Fang;Xu, Jiakun;Yang, Ridong;Che, Hongxia;Shoji, Osami;Lin, Yingwu
关键词：P450BM3; Artificial metalloenzyme; Chloroanilines; Biodegradation
-
Construction of artificial peroxidase based on myoglobin scaffold for efficient degradation of meloxicam
作者：Zhang, Weikang;Yang, Yadan;Wang, Fang;Xu, Jiakun;Zhang, Weikang;Yang, Yadan;Meng, Xiangmin;Lin, Ying-Wu
关键词：Meloxicam; Myoglobin; Biodegradation; Structure-function relationship; Degradation; Environmental remediation
-
Engineering a 3D platform for testis bioengineering: generation and proteomic profiling of decellularized fish testicular scaffolds
作者：Rosa, Ivana Felipe;Souza, Beatriz Marques;Nobrega, Rafael Henrique;Rosa, Ivana Felipe;Doretto, Lucas Benites;Rodrigues, Maira da Silva;Shao, Changwei;Rosa, Ivana Felipe;Doretto, Lucas Benites;Shao, Changwei;Barquilha, Caroline Nascimento;Fioretto, Matheus Naia;Portela, Luiz Marcos Frediani;Justulin, Luis Antonio;Padilha, Pedro de Magalhaes
关键词：testicular scaffolds; decellularization; sds; matrix extracellular; Astyanax lacustris
-
Establishment and identification of spleen cell line from tiger puffer fish (Takifugu rubripes) and immune transcriptome response to IHNV
作者：He, Yangbin;Zhang, Jingjing;Meng, Bo;He, Yangbin;Zhang, Jingjing;Lin, Lei;Meng, Bo;Dong, Caichao;Liu, Yuyan;Yang, Yu;Ji, Honglong;Liu, Kaiqiang;Wang, Qian;Shao, Changwei;Liu, Yuyan;Liu, Kaiqiang;Wang, Qian;Shao, Changwei;Liu, Yuyan;Liu, Kaiqiang;Wang, Qian;Shao, Changwei
关键词：Tiger puffer fish; Spleen; Cell line; Immunology; Transcriptome
-
High-quality chromosome-level genome assembly of the whitespotted conger (Conger myriaster)
作者：Han, Shenglei;Han, Shenglei;Li, Chen;Li, Shuo;Chen, Yan;Liu, Kaiqiang;Liu, Yuyan;Wang, Hong-Yan;Wang, Qian;Cao, Xuwen;Shi, Bao;Shao, Changwei;Han, Shenglei;Li, Chen;Li, Shuo;Chen, Yan;Liu, Kaiqiang;Liu, Yuyan;Wang, Hong-Yan;Wang, Qian;Cao, Xuwen;Shi, Bao;Shao, Changwei;Wang, Chenggang;Liu, Kaiqiang;Liu, Yuyan;Wang, Hong-Yan;Wang, Qian;Cao, Xuwen;Shao, Changwei
关键词：
