对家禽和猪乳酸菌的基因组解析分析提供了一个数据驱动的框架,用于阐明多菌株益生菌中的代谢互补相互作用
João Victor Dos Anjos Almeida1, Mauro de Medeiros Oliveira1, Taís Mayumi Kuniyoshi2
1Department of Agricultural and Environmental Biotechnology, Faculdade de Ciências Agrárias e Veterinárias - FCAV), São Paulo State University (Universidade Estadual Paulista - UNESP) - School of Agricultural and Veterinary Sciences, Jaboticabal, Sao Paulo, Brazil.
Probiotics and antimicrobial proteins
|December 5, 2025
概括
这项研究对五种乳酸菌菌株的基因组进行了测序,揭示了碳水化合物降解和维生素生产中的特殊功能. 这些发现支持设计多菌株益生菌,以改善牲畜的肠道健康和料效率.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 动物科学动物科学
背景情况:
- 益生菌,活微生物,通过改善消化,营养吸收和免疫调节提供健康益处.
- 益生菌中的乳酸细菌对肠道健康至关重要,产生必需的维生素和短链脂肪酸.
研究的目的:
- 对来自和猪微生物群的五种Lactobacillales菌株进行全基因组测序和比较基因组分析.
- 通过基因组洞察来研究它们在改善肠道健康和牲畜料效率方面的潜力.
主要方法:
- 高保真性 (PacBio HiFi) 全基因组测序五种乳杆菌菌株.
- 综合性比较基因组分析,包括分类学分类,抗微生物耐药性基因,细菌素潜力,碳水化合物活性酶和维生素生物合成途径.
主要成果:
- 基因组组装实现了高完整性 (>98%) 和低污染率 (<1.31%).
- Enterococcus mundtii表现出最高的碳水化合物活性酶的多样性和数量 (43个家族,100个术语).
- 观察到的功能专业化,具有E. mundtii独特的氧化糖降解和Enterococcus lactis的点利用.
- 发现了B组合维生素生物合成基因 (利博氨酸,叶酸,menaquinone) 的异质和互补分布.
结论:
- 研究的Lactobacillales菌株显示了代谢互补性和交叉养的潜力.
- 基因组解析的洞察力为设计多菌株益生菌提供了框架,以提高家禽和猪的肠道健康和料效率.
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