微生物硫循环网络的研究进展

Research progress of the microbial sulfur-cycling network

硫元素是所有生物的基本组成成分,是生物体必需的营养元素之一。硫氧化还原微生物的数量多、分布广、代谢途径多样化,硫化合物之间的平衡依赖于微生物代谢网络中的各种硫转化反应与代谢过程。此外,硫循环与碳、氮循环紧密相关,对地球生态循环起到了至关重要的作用。本文综述了近期微生物硫循环网络的研究进展,包括所涉及的主要微生物、硫循环的生物化学途径、硫循环的环境意义和工业应用潜能等,深入了解自然和人工生态系统中存在的硫循环过程,可为控制工农业生产中硫元素的增减与利用提供理论基础与应用方案。

Sulfur is an essential component of all creatures and one of indispensable nutrient elements for living organisms.Sulfur-redox microorganisms are numerous,widely distributed,and have diverse metabolic pathways,while the balance between sulfur compounds depends on various sulfur-transforming reactions and metabolism pathways in the microbial metabolism network.In addition,the sulfur cycle is closely related to the carbon and nitrogen cycles and plays a vital role in the earth’s ecological cycle.In this review,we summarize current research progress of the microbial sulfur-cycling network,including the involved microorganisms,biochemical pathways,their environmental implications,and industrial applications,etc.,which helps to understand the sulfur cycle existing in the natural and artificial ecological environment and provides a solid theoretical basis and application solutions for controlling the increase and decrease of sulfur in industrial and agricultural production.