Extracellular electron uptake by autotrophic microbes: physiological, ecological, and evolutionary implications
Microbes exchange electrons with their extracellular environment via direct or indirect means. This exchange is bidirectional and supports essential microbial oxidation–reduction processes, such as respiration and photosynthesis. The microbial capacity to use electrons from insoluble electron donors...
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| Veröffentlicht in: | Journal of industrial microbiology & biotechnology 2020-10, Vol.47 (9-10), p.863-876 |
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| creator | Gupta, Dinesh Guzman, Michael S. Bose, Arpita |
| description | Microbes exchange electrons with their extracellular environment via direct or indirect means. This exchange is bidirectional and supports essential microbial oxidation–reduction processes, such as respiration and photosynthesis. The microbial capacity to use electrons from insoluble electron donors, such as redox-active minerals, poised electrodes, or even other microbial cells is called extracellular electron uptake (EEU). Autotrophs with this capability can thrive in nutrient and soluble electron donor-deficient environments. As primary producers, autotrophic microbes capable of EEU greatly impact microbial ecology and play important roles in matter and energy flow in the biosphere. In this review, we discuss EEU-driven autotrophic metabolisms, their mechanism and physiology, and highlight their ecological, evolutionary, and biotechnological implications. |
| doi_str_mv | 10.1007/s10295-020-02309-0 |
| format | Article |
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(LLNL), Livermore, CA (United States)</creatorcontrib><title>Extracellular electron uptake by autotrophic microbes: physiological, ecological, and evolutionary implications</title><title>Journal of industrial microbiology & biotechnology</title><addtitle>J Ind Microbiol Biotechnol</addtitle><addtitle>J Ind Microbiol Biotechnol</addtitle><description>Microbes exchange electrons with their extracellular environment via direct or indirect means. This exchange is bidirectional and supports essential microbial oxidation–reduction processes, such as respiration and photosynthesis. The microbial capacity to use electrons from insoluble electron donors, such as redox-active minerals, poised electrodes, or even other microbial cells is called extracellular electron uptake (EEU). Autotrophs with this capability can thrive in nutrient and soluble electron donor-deficient environments. As primary producers, autotrophic microbes capable of EEU greatly impact microbial ecology and play important roles in matter and energy flow in the biosphere. 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| ispartof | Journal of industrial microbiology & biotechnology, 2020-10, Vol.47 (9-10), p.863-876 |
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| subjects | Autotrophic Processes Autotrophs BASIC BIOLOGICAL SCIENCES Biochemistry biogeochemical cycle Bioinformatics biological and medical sciences Biological Transport Biomedical and Life Sciences Biosphere Biotechnology Carbon Cycle chemoautotrophy Ecology Electrodes Electron Transport Electrons Energy flow Environmental Microbiology - Mini Review Exchanging extracellular electron uptake (EEU) Genetic Engineering Inorganic Chemistry Life Sciences Microbiology Microorganisms Minerals Oxidation Oxidation-Reduction photoautotrophy photoferrotrophy Photosynthesis Photosynthesis - physiology Physiology |
| title | Extracellular electron uptake by autotrophic microbes: physiological, ecological, and evolutionary implications |
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