The role of phenazines in marine Pseudomonas aeruginosa microbiologically influenced corrosion against 316L stainless steel

被引：0
|
作者：
Yang, Yi [1 ,2 ]
Zhou, Enze [1 ,3 ]
Li, Lingke [1 ]
Peng, Xuqin [1 ]
Huang, Ye [4 ]
Jiang, Chengying [4 ]
Gu, Tingyue [5 ]
Wang, Fuhui [1 ]
Xu, Dake [1 ]
机构：
[1] Corrosion and Protection Center, Northeastern University, Shenyang,110819, China
[2] Life and Health Sciences, Northeastern University, Shenyang,110819, China
[3] Foshan Graduate School of Innovation, Northeastern University, Foshan,528311, China
[4] State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing,100101, China
[5] Department of Chemical and Biomolecular Engineering, Institute for Corrosion and Multiphase Technology, Ohio University, Athens,OH,45701, United States
来源：
Corrosion Science | 2025年 / 242卷
基金：
中国国家自然科学基金;
关键词：
Bacteria - Steel corrosion;
D O I：
10.1016/j.corsci.2024.112587
中图分类号：
学科分类号：
摘要：
The impact of various phenazines produced by Pseudomonas aeruginosa on microbiologically influenced corrosion (MIC) were investigated. Exogenous phenazines led to the biotic Rp data decrease from approximately 300 kΩ cm2 to 100 kΩ cm2 in 316L stainless steel MIC. Conversely, the Rp data demonstrated a significant increase for ∆phzA2G2 mutant (∼ 2000 kΩ cm2), which exhibited negligible expression of phenazines. The normalized MIC rate per sessile cell exhibited similar results. The mediated electron transfer (MET-MIC) mechanism was further confirmed by increased corrosion of 316L SS and X80 steel when 10 ppm phenazines was injected to the biotic media. © 2024 Elsevier Ltd
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