微生物和含铁矿物之间的电子交换
发布时间：2018-07-28 10:31
【摘要】：含铁矿物常见于土壤中和地表下.在那里,它们以多种形式支撑微生物的生长和代谢,如作为微生物厌氧呼吸的电子受体、微生物自养生长的电子供体和能量来源、微生物细胞之间的电子导体和电子储存介质.微生物细胞膜套的物理化学性质决定其既不具有矿物渗透性,也不具备导电性.因此,微生物需要进化出特定的机制同胞外矿物交换电子(即胞外电子传导).微生物胞外电子传导与常见的,用于有氧呼吸的微生物细胞电子传递链有着诸多本质区别.本文中,我们概述了微生物与胞外含铁矿物之间电子传导的分子机理,以及相关的微生物在生物修复污染物、生产新型纳米材料、生物采矿和生物能源中的应用.
[Abstract]:Iron-bearing minerals are found in the soil and below the surface. There, they support microbial growth and metabolism in a variety of ways, such as electron receptors for anaerobic respiration, electron donors and energy sources for microbial autotrophic growth, electronic conductors and electronic storage media between microbial cells. The physical and chemical properties of microorganism membrane sheath determine that it has neither mineral permeability nor electrical conductivity. Therefore, microbes need to evolve specific mechanisms for extracellular mineral exchange electrons (i.e. extracellular electron conduction). There are many essential differences between the extracellular electron conduction of microorganisms and the common microbial cell electron transfer chain used for aerobic respiration. In this paper, we summarize the molecular mechanism of electron conduction between microbes and extracellular iron minerals, and the applications of related microorganisms in bioremediation of pollutants, production of new nano-materials, bio-mining and bioenergy.
【作者单位】： 中国地质大学(武汉)生物地质与环境地质国家重点实验室;中国地质大学(武汉)环境学院生物科学与技术系;
【基金】：国家自然科学基金(Nos.41502317,41630318) 生物地质与环境地质国家重点实验室开放基金(No.GBL21503)资助~~
【分类号】：P57;Q93
本文编号：2149807
[Abstract]:Iron-bearing minerals are found in the soil and below the surface. There, they support microbial growth and metabolism in a variety of ways, such as electron receptors for anaerobic respiration, electron donors and energy sources for microbial autotrophic growth, electronic conductors and electronic storage media between microbial cells. The physical and chemical properties of microorganism membrane sheath determine that it has neither mineral permeability nor electrical conductivity. Therefore, microbes need to evolve specific mechanisms for extracellular mineral exchange electrons (i.e. extracellular electron conduction). There are many essential differences between the extracellular electron conduction of microorganisms and the common microbial cell electron transfer chain used for aerobic respiration. In this paper, we summarize the molecular mechanism of electron conduction between microbes and extracellular iron minerals, and the applications of related microorganisms in bioremediation of pollutants, production of new nano-materials, bio-mining and bioenergy.
【作者单位】： 中国地质大学(武汉)生物地质与环境地质国家重点实验室;中国地质大学(武汉)环境学院生物科学与技术系;
【基金】：国家自然科学基金(Nos.41502317,41630318) 生物地质与环境地质国家重点实验室开放基金(No.GBL21503)资助~~
【分类号】：P57;Q93
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