扬诺玛米和图纳普科微生物群中的重金属耐药性
Liliane Costa Conteville1,2, Joseli Oliveira-Ferreira3, Ana Carolina P Vicente1
1Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Genética Molecular de Microrganismos, Rio de Janeiro, RJ, Brasil.
Memorias do Instituto Oswaldo Cruz
|November 16, 2023
概括
扬诺玛米人和图纳普科人的肠道微生物组显示出明显的重金属暴露. 亚诺玛米肠道细菌表现出耐性,而图纳普科细菌表现出抗银性.
科学领域:
- 微生物学 微生物学
- 环境科学 环境科学
- 基因组学就是基因组学.
背景情况:
- 亚马逊拥有丰富的生物多样性和矿产资源,导致土著地区的大量黄金开采.
- 采矿中的和其他重金属污染了环境,影响了像亚诺玛米这样的土著人口.
研究的目的:
- 研究两个半孤立的亚马逊群体的肠道微生物组,重点关注它们的金属耐药性.
- 了解土著社区中微生物适应不同重金属暴露的微生物适应.
主要方法:
- 从Yanomami和Tunapuco个体的肠道微生物组样本的元基因组测序.
- 将元基因组数据组合成结合物,并识别假定蛋白质.
- 识别的蛋白质与金属抗性蛋白质的全面数据库进行比较.
主要成果:
- 抗蛋白质仅在亚诺玛米人肠道微生物群中发现.
- 仅在图纳普科肠道微生物群中才发现银抗性蛋白质.
- 两组共享77种金属抗性蛋白质,具有抗,,,铜,铜/银和/的抗性;图纳普科组独特地拥有抗铜的pco操作子.
结论:
- 肠道微生物组的组成反映了亚诺玛米和图纳普科人群中不同重金属环境的直接或间接暴露.
- 微生物的金属耐药性基因作为环境重金属污染和亚马逊地区人类暴露的指标.
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