气候变暖通过改变土壤细菌特性加剧全球抗生素耐药基因库。
Climate warming fuels the global antibiotic resistome by altering soil bacterial traits.
作者信息
Lin Da, Du Shuai, Zhao Zhe, Zhang Tianlun, Wang Lu, Zhang Qi, Zhou Shu-Yi-Dan, Graham David W, Tissue David T, Zhu Dong, Zhu Yong-Guan, Penuelas Josep, Reich Peter B
机构信息
State Key Laboratory of Regional and Urban Ecology, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.
University of Chinese Academy of Sciences, Beijing, China.
出版信息
Nat Ecol Evol. 2025 Jun 4. doi: 10.1038/s41559-025-02740-5.
Understanding the implications of global warming on the spread of antibiotic resistance genes (ARGs) and virulence factor genes (VFGs) within soil ecosystems is crucial for safeguarding human well-being and sustaining ecosystem health. However, there is currently a lack of large-scale, systematic underpinning data needed to examine this issue. Here, using an integrative approach that combines field experiments, extensive global metagenomic data and microbial culturing, we show that warming enriches bacteria with ARGs and VFGs, increases metabolic complexity and adaptability in bacteria, and accelerates genetic alterations related to ARG and VFGs development. Our validation experiments confirm that the warming effect is more pronounced in colder regions. Machine learning predictions further suggest that warming will increase the soil ARG abundance, especially in some areas that rely heavily on fossil fuels. These results suggest another major negative consequence of global warming, highlighting the importance of developing and implementing sustainability policies that simultaneously combat climate change and antibiotic resistance.
了解全球变暖对土壤生态系统中抗生素抗性基因(ARGs)和毒力因子基因(VFGs)传播的影响,对于保障人类福祉和维持生态系统健康至关重要。然而,目前缺乏研究这一问题所需的大规模、系统性基础数据。在此,我们采用一种综合方法,结合田间实验、广泛的全球宏基因组数据和微生物培养,结果表明,气候变暖使携带ARGs和VFGs的细菌增多,增加了细菌的代谢复杂性和适应性,并加速了与ARGs和VFGs发展相关的基因改变。我们的验证实验证实,在较寒冷地区,变暖效应更为显著。机器学习预测进一步表明,气候变暖将增加土壤中ARGs的丰度,特别是在一些严重依赖化石燃料的地区。这些结果表明了全球变暖的另一个主要负面后果,凸显了制定和实施可持续发展政策的重要性,这些政策应同时应对气候变化和抗生素耐药性问题。