Metagenomic and Antibiotic Resistance Analysis of the Gut Microbiota in Larus relictus and Anatidae Species Inhabiting the Honghaizi Wetland of Ordos, Inner Mongolia, from 2021 to 2023
文献类型： 外文期刊
作者： Huang, Ronglei 1 ; Ji, Xue 2 ; Zhu, Lingwei 2 ; Zhang, Chengyang 1 ; Luo, Tingting 4 ; Liang, Bing 2 ; Jiang, Bowen 2 ; Zhou, Ang 1 ; Du, Chongtao 1 ; Sun, Yang 2 ;
作者机构： 1.Jilin Univ, Inst Zoonosis, Coll Vet Med,Key Lab Zoonosis Res,Minist Educ, State Key Lab Diag & Treatment Severe Zoonot Infec, Changchun 130062, Peoples R China
2.Chinese Acad Agr Sci, Changchun Vet Res Inst, Changchun 130122, Peoples R China
3.Key Lab Jilin Prov Zoonosis Prevent & Control, Changchun 130122, Peoples R China
4.Jilin Univ, Coll Anim Sci, Changchun 130062, Peoples R China
关键词： Anatidae; biofilm; metagenomic; Escherichia coli; gut microbiota; Larus relictus
期刊名称：MICROORGANISMS （ 影响因子：4.5； 五年影响因子：4.8 ）
ISSN：
年卷期： 2024 年 12 卷 5 期
页码：
收录情况： SCI
摘要： Gut microbes thrive by utilising host energy and, in return, provide valuable benefits, akin to a symbiotic relationship. Here, metagenomic sequencing was performed to characterise and compare the community composition, diversity and antibiotic resistance of the gut microbiota of Relict gull (Larus relictus) and Anatidae species. Alpha diversity analysis revealed that the intestinal microbial richness of L. relictus was significantly lower than that of Anatidae, with distinct differences observed in microbial composition. Notably, the intestines of L. relictus harboured more pathogenic bacteria such as clostridium, which may contribute to the decline in their population and endangered status. A total of 117 strains of Escherichia coli were isolated, with 90.60% exhibiting full susceptibility to 21 antibiotics, while 25.3% exhibited significant biofilm formation. Comprehensive Antibiotic Resistance Database data indicated that glycopeptide resistance genes were the most prevalent type carried by migratory birds, alongside quinolone, tetracycline and lincosamide resistance genes. The abundance of resistance genes carried by migratory birds decreased over time. This metagenomic analysis provides valuable insights into the intestinal microbial composition of these wild bird species, offering important guidance for their conservation efforts, particularly for L. relictus, and contributing to our understanding of pathogen spread and antibiotic-resistant bacteria.
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