微生物种间电子传递的研究进展

种间电子传递可促进微生物发生共代谢，因而在地球生物化学循环和环境污染修复中具有重要意义。根据电子传递方式的不同可将种间电子传递分为直接种间电子传递（direct interspecies electron transfer，DIET）和间接种间电子传递（mediated interspecies electron transfer，MIET），其中，直接种间电子传递由于易发生、效率高而受到更加广泛的关注。本文总结了近年来关于种间电子传递的研究进展，阐述了种间电子传递的途径，比较了DIET和MIET的优缺点，并对开发更多具有种间电子传递功能的微生物提出了建议，以期加深人们对于种间电子传递的理解，并对未来该领域的研究提供参考。

Interspecies electron transfer in microorganisms

Interspecific electron transport is of great significance to geobiochemical cycles and environmental pollution remediation since it can promote microbial co-metabolism. Interspecies electron transfer can be classified into direct interspecies electron transfer (DIET) and mediated interspecies electron transfer (MIET) according to the mode of electron transfer, in which the former has received extensive attention owing to its common occurrence and high efficiency. This study summarized the research progress in interspecies electron transfer, elaborated the involved pathways, compared the advantages and disadvantages between DIET and MIET, and suggested to mine more microorganisms with interspecies electron transfer function. This review aims to improve understanding of interspecies electron transfer and provide a reference for the future research in this field.