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生物地化学 (Te) 循环中的神秘步骤:间接的基本Te氧化,由氧化的细菌 Bacillus sp. 中介. FF-1 FF-1 FF-1 FF-1 FF-1 FF-1 FF-1 FF-1 FF-1 FF-1 FF-1 FF-1

Yuqing Liu¹, Huiqing Ma², Ang Li³

¹Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Ocean Science and Technology, Panjin Campus, Dalian University of Technology, China; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China.

Environmental research

|October 1, 2023

概括

元素 (Te⁰) 可以通过Bacillus sp.产生的氧化物重新氧化为有毒 (Te(IV)) . FF-1.FF-1.FF-1.FF-1.FF-1.FF-1.FF-1.FF-1.FF-1.FF-1.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF.FF. 这一发现挑战了Te⁰作为唯一排毒的类物种的观点.

科学领域:

环境科学环境科学
微生物学微生物学
地质化学地质化学

背景情况:

(Te) 是一种罕见的石化物,具有复杂的生态化学循环.
化 (Te(IV) 是一种可溶性和有毒的Te物种,通常通过降解为元素 (Te⁰) 进行排毒.
氧化的细菌在各种环境中的金属转化中起作用.

研究的目的:

为了研究由氧化细菌介导的类物种的转化.
为了确定元素 (Te) 的以前未知的氧化途径.
重新评估与Te0相关的环境命运和生态风险.

主要方法:

培养Bacillus sp.的种植方式 FF-1,一种具有Mn2氧化和Te2降解能力的细菌.
细菌用化 (Te(IV)) 进行化,然后再添加 ((II) (Mn(II)).
生产的生物性氧化物 (BioMnOx) 和生物性元素 (BioTe) 的表征.
通过BioMnOx对BioTe⁰转化为Te (IV) 的氧化过程的观察和量化.

主要成果:

巴西勒斯种类 (Bacillus sp.) 的存在当FF-1接触到MnII和TeIV时,它会产生BioMnOx和BioTe.
生物原始 (BioTe⁰) 通过由FF-1菌株产生的BioMnOx被有效地重新氧化为Te(IV).
化学产生的和外源生物产生的Te可以被BioMnOx氧化,反应速率各不相同.

结论:

氧化的细菌,如Bacillus sp. 这种细菌. FF-1可以调解元素 (Te) 的氧化,使其重新变成有毒 (Te) 的氧化.
这种以前未知的氧化过程凸显了循环的动态性质.
的环境命运和生态风险需要根据其潜在的再氧化重新评估.

关键词:

细菌细菌是一种细菌.生物地质化学循环是一个循环.氧化的氧化方式泰鲁里特的减少减少.泰氧化氧化过程中的泰.

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