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水平的波动调节了在洪水平原中参与生物地球化学循环的微生物群

Zheng Hao^1,2, Qianhong Wang³, Jianjun Wang¹

¹State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China.

Microbial ecology

|December 30, 2023

概括

季节性洪水极大地改变了洪水平原的微生物功能. 水文学推动了代谢的变化,揭示了微生物适应潮湿和干燥的条件.

科学领域:

微生物生态学微生物生态学
环境微生物学环境微生物学
生态系统科学生态系统科学

背景情况:

洪水平原生态系统在洪水和干旱季节之间经历了显著的水文变化.
微生物息地和功能是由这些动态的环境条件所塑造的.
了解季节性微生物功能潜力对于洪水平原生态系统管理至关重要.

研究的目的:

为了研究不同季节在洪水平原中微生物功能潜力的变化.
在洪水和干旱期间确定影响微生物新陈代谢的关键环境驱动因素.
探索洪水平原微生物中代谢的基因组潜力.

主要方法:

大基因组测序被用来分析微生物社区的功能基因.
收集了包括水位,深度,沉浸时间和温度在内的环境数据.
对元基因组组装基因组 (MAG) 进行了基因组分析和途径重建.

主要成果:

在洪水和干旱季节之间观察到功能基因组成的显著差异,特别是,碳和硫代谢.
水位,深度,沉浸时间和温度被确定为主要的环境驱动因素.
像纤维素降解和酸盐降解这样的特定模块在夏季更为丰富,这表明合过程.
德苏尔福巴克特罗塔 (Desulfobacterota) 血统表现出高适应性和丰富的代谢基因.
在Methylomirabilota中发现了一种具有降低基因的新型序列.

结论:

水文因素对于调节洪水平原中的微生物功能多样性至关重要.
季节性变化显著影响微生物代谢途径,特别是循环.
洪水平原的微生物群落具有多样化和适应性的代谢潜力,包括新的减少的血统.

关键词:

环境适应能力环境适应能力功能的潜力功能的潜力转基因组学是指转基因组学.气循环是指气循环的过程.水平的波动,水位的波动.潮湿干燥的季节潮湿干燥的季节

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