Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (31): 13-19.doi: 10.11924/j.issn.1000-6850.casb20191100879

Special Issue: 生物技术

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Advances in Enzyme Properties and Applications of Sulfate-reducing Bacteria

Yan Liang1,2(), Zhao Hui1,2()   

  1. 1Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150500
    2Key Laboratory of Microbiology, College of Heilongjiang Province/ School of Life Sciences, Heilongjiang University, Harbin 150080
  • Received:2019-11-26 Revised:2020-02-23 Online:2020-11-05 Published:2020-11-20
  • Contact: Zhao Hui E-mail:1660086420@qq.com;zhaohui9463@sohu.com

Abstract:

Two different metabolic pathways of assimilative sulfate reduction and dissimilating sulfate reduction were summarized, and the enzymatic properties of two key enzymes, adenosyl sulfate reductase and sulfite reductase, were outlined. It is pointed out that the sulfate-reducing bacteria could reduce soil heavy metal pollution in agricultural fields by their own metabolic characteristics, promote the growth of crops, and degrade lactate in liquor to increase caproic acid and decrease lactic acid, and could also be used in microbial fuel cell, the degradation of polycyclic aromatic hydrocarbons and other fields. At the same time, sulfate-reducing bacteria have the disadvantage of corroding metals, and analysis has shown that metal ions with strong inhibition on the self-repair mechanism of sulfate-reducing bacteria could be screened out or genetically modified to reduce the harm of metal corrosion.

Key words: sulfate-reducing bacteria, metabolic pathways, enzymology properties, agricultural sector, increasing caproic acid and decreasing lactic acid, metal corrosion

CLC Number: