草甘和一种基于草甘的除草剂会影响大黄蜂肠道微生物群
Marjo Helander1, Aditya Jeevannavar1, Kimmo Kaakinen1
1Department of Biology, University of Turku, 20014 Turku, Finland.
FEMS microbiology ecology
|June 14, 2023
概括
杀虫剂的使用会影响大黄蜂的肠道微生物. 草甘基除草剂减少了肠道微生物群的多样性,而草甘单独增加了它,影响了关键的细菌物种,并可能损害蜜蜂健康和生态系统.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 生态生态学 生态生态学
背景情况:
- 授粉者减少是一个重大的全球挑战.
- 过度使用农药,特别是草甘,被怀疑是导致的因素.
- 熊蜂肠道微生物群在蜜蜂的健康和生存中起着至关重要的作用.
研究的目的:
- 研究草甘和基于草甘的除草剂对大黄蜂肠道微生物群组成的影响.
- 评估特定蜜蜂肠道微生物对草甘暴露的敏感性.
主要方法:
- 熊蜂通过饮食暴露于草甘和基于草甘的除草剂.
- 16S rRNA基因测序被用来量化微生物社区的变化.
- 微生物对草甘的敏感性是根据酶的存在来估计的.
主要成果:
- 草甘增加了,而草甘类除草剂减少了肠道微生物群的多样性.
- 这两种治疗都减少了潜在敏感细菌 (Snodgrasella alvi) 的丰富性.
- 其他敏感细菌 (Candidatus Schmidhempelia) 的丰富性随着草甘暴露而增加.
结论:
- 对大黄蜂肠道微生物群多样性的负面影响似乎与除草剂配方剂有关,而不仅仅是草甘.
- 很大一部分蜜蜂肠道微生物对草甘具有耐药性或敏感性.
- 广泛使用草甘除草剂可能对蜜蜂健康和生态系统功能产生不利影响.
相关概念视频
01:29Bacterial Flora of the Large Intestine
531
The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
531
02:11The Roles of Bacteria and Fungi in Plant Nutrition
36.3K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
36.3K