Marine rust tubercles harbour iron corroding archaea and sulphate reducing bacteria

被引：66
|
作者：
Usher, K. M. [1 ]
Kaksonen, A. H. [1 ]
MacLeod, I. D. [2 ]
机构：
[1] CSIRO, Floreat, WA 6014, Australia
[2] Western Australian Maritime Museum, Fremantle, WA 6160, Australia
来源：
CORROSION SCIENCE | 2014年 / 83卷
关键词：
Carbon steel; SEM; Microbial corrosion; Rust; MICROBIOLOGICALLY INFLUENCED CORROSION; CARBON-STEEL; MICROBIAL CORROSION; LOCALIZED CORROSION; DIVERSITY; HYDROGEN; SEAWATER; BEHAVIOR; STRAIN;
D O I：
10.1016/j.corsci.2014.02.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Marine corrosion has significant economic impacts globally. Marine rust on carbon steel in Western Australia was investigated to determine the importance of various microorganisms in corrosion. Microorganisms were imaged, identified and enumerated by pyrosequencing. The base of tubercles was anaerobic. Pyrosequencing demonstrated the presence of diverse bacteria and archaea. However, the dominant group were methanogenic archaea, representing 53.5% of all sequences. One methanogenic species, Methanococcus maripaludis, comprised 31% of sequences, and can significantly increase corrosion rates by extracting electrons directly from steel. Methanogenic archaea may be significant contributors to marine corrosion of carbon steel. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：189 / 197
页数：9
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