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通过ActinomyceticStreptomyces microflavus进行Metavanadate生物还原,阐明多个电子转移途径

Shixiang Wang¹, Baogang Zhang¹, Yangmei Fei¹

¹MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, P. R. China.

Environmental science & technology

|November 7, 2023

概括

菌株Streptomyces microflavus有效地修复了有毒的甲酸污染,减少了超过91%的污染. 这项研究揭示了这种微生物V (V) 减少背后的分子机制,提供了新的生物修复策略.

科学领域:

环境微生物学环境微生物学
生物修复是一种生物修复.
这些是Actinomycetes.

背景情况:

污染造成的环境风险.
微生物V (V) 减少是一种有前途的补救策略.
已经确定了有限的V(V) 降低微生物菌株,主要是细菌和真菌.

研究的目的:

为了研究Streptomyces microflavus. 的V(V) 减少能力.
阐明S. microflavus. 通过V (V) 生物还原的分子机制.
评估S. microflavus对水表沉积物生物修复的潜力.

主要方法:

培养S.microflavus和V (V) 的去除实验.
转录组,蛋白组和代谢组分析以揭示电子转移通路.
在含水层沉积物中进行生物增量实验.

主要成果:

在12天内,S. microflavus实现了91.0±4.35%的V (V) 移除.
V(V) 被降解为不溶性V(IV) 在细胞内和细胞外沉.
转录组,蛋白组和代谢组数据确定了涉及呼吸链,细胞染色体c, рибофлавин,和谷氨的电子转移途径.

结论:

微菌 (Streptomyces microflavus) 是一种新型的减少V (V) 的微生物.
详细阐明了V(V) 生物还原的详细分子机制.
S. microflavus显示出污染的含水层沉积物的生物修复的潜力.

关键词:

这些是actinomycetes.生物修复生物修复电子转移是电子的转移.地下水地下水地下水甲维纳达特 (metavanadate) 是一种

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