Effects of Neolamarckia cadamba leaves extract on microbial community and antibiotic resistance genes in cecal contents and feces of broilers challenged with lipopolysaccharides
文献类型： 外文期刊
作者： Wang, Cheng 1 ; Wu, Shuo 1 ; Zhou, Wei 1 ; Hu, Lei 1 ; Hu, Qi 3 ; Cao, Yong 4 ; Wang, Li 2 ; Chen, Xiaoyang 1 ; Zhang, Qing 1 ;
作者机构： 1.South China Agr Univ, Coll Forestry & Landscape Architecture, Guangdong Prov Res Ctr Woody Forage Engn Technol, Guangzhou, Peoples R China
2.Guangdong Acad Agr Sci, Inst Anim Sci, State Key Lab Swine & Poultry Breeding Ind, Guangzhou, Peoples R China
3.NEOMICS Inst, Bioinformat Ctr, Shenzhen, Peoples R China
4.South China Agr Univ, Coll Food Sci, Guangzhou, Peoples R China
关键词： Neolamarckia cadamba; antibiotic resistance gene; lipopolysaccharide; feces
期刊名称：APPLIED AND ENVIRONMENTAL MICROBIOLOGY （ 影响因子：4.4； 五年影响因子：5.0 ）
ISSN： 0099-2240
年卷期： 2024 年 90 卷 2 期
页码：
收录情况： SCI
摘要： The effects of Neolamarckia cadamba leaves extract (NCLE), with effective ingredients of flavonoids, on antibiotic resistance genes (ARGs) and relevant microorganisms in cecal contents and feces of broilers treated with or without lipopolysaccharide stimulation (LPS) were investigated. LPS stimulation increased (P < 0.05) the relative abundance of ARGs and mobile genetic elements (MGEs), such as tet(W/N/W), APH(3')-IIIa, ErmB, tet (44), ANT (6)-Ia, tet(O), tet (32), Vang_ACT_CHL, myrA, ANT (6)-Ib, IncQ1, tniB, and rep2 in cecal contents. However, the difference disappeared (P > 0.05) when NCLE was added at the same time. These differential ARGs and MGEs were mainly correlated (P < 0.01) with Clostridiales bacterium, Lachnospiraceae bacterium, and Candidatus Woodwardibium gallinarum. These species increased in LPS-stimulated broilers and decreased when NCLE was applied at the same time. In feces, LPS stimulation decreased (P < 0.05) the relative abundance of tet(Q), adeF, ErmF, Mef(En2), OXA-347, tet (40), npmA, tmrB, CfxA3, and ISCrsp1, while the LPS + NCLE treated group showed no significant effect (P > 0.05) on these ARGs. These differential ARGs and MGEs in feces were mainly correlated (P < 0.01) with Clostridiales bacterium, Pseudoflavonifractor sp. An184, Flavonifractor sp. An10, Ruminococcaceae bacterium, etc. These species increased in LPS-stimulated broilers and increased when NCLE was applied at the same time. In conclusion, LPS stimulation and NCLE influenced microbial communities and associated ARGs in both cecal contents and feces of broilers. NCLE alleviated the change of ARGs and MGEs in LPS-induced broilers by maintaining the microbial balance.
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