单细胞生物和生物膜中的长距离电子传输
Long-Distance Electron Transport in Unicellular Organisms and Biofilms.
作者信息
McCaig Colin D
机构信息
Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, UK.
出版信息
Rev Physiol Biochem Pharmacol. 2025;187:29-38. doi: 10.1007/978-3-031-68827-0_4.
Electrical forces are widespread in single-celled organisms and underpin sophisticated communication systems. Bacterial biofilm colonies, for example, attract new members electrically. Bacteria also join together end to end and engage in long-distance electron transport along bacterial filaments over centimetres. This transport of electrons across around 10,000 cells separates life-essential redox reactions spatially and keeps "colleagues breathing" in otherwise challenging aquatic sediments.
电力在单细胞生物中广泛存在，并支撑着复杂的通讯系统。例如，细菌生物膜菌落会通过电吸引新成员。细菌还会首尾相连，沿着长达数厘米的细菌丝进行长距离电子传输。这种跨越约10000个细胞的电子传输在空间上分离了生命必需的氧化还原反应，并使“同伴”在其他条件恶劣的水生沉积物中得以“呼吸”。
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