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Microbial community dynamics in a crust formed on carbon steel SS400 during corrosion
Corrosion Engineering, Science and Technology ( IF 1.8 ) Pub Date : 2020-06-03 , DOI: 10.1080/1478422x.2020.1774961
Shin-ichi Hirano 1 , Toru Nagaoka 1 , Norio Matsumoto 1
Affiliation  

ABSTRACT To obtain information on the mechanism of microbiologically influenced corrosion (MIC) under anaerobic conditions, metabolic processes and microbial community dynamics were analysed for MIC of carbon steel with lake-mud microbial consortium as inoculum. During one month of MIC experiment, the microbial consortium corroded carbon steel with sulphate reduction, methane and acetate production. The bacterial and archaeal community structure in the suspension culture and the crust formed on carbon steel were compared using high-throughput Illumina MiSeq sequencing and quantitative polymerase chain reaction. The data indicated that sulphate-reducing bacterium (Desulfovibrio genus), amino acid-degrading bacterium (Aminobacterium genus) and a hydrogenotrophic methanogen Methanofollis among Archaea increased in the crust. These microbes were estimated to collaboratively induced corrosion of carbon steel under anaerobic condition.

中文翻译:

碳钢 SS400 腐蚀过程中形成的结壳中的微生物群落动态

摘要 为了获得厌氧条件下微生物影响腐蚀 (MIC) 机制的信息,以湖泥微生物群落为接种物,对碳钢的 MIC 代谢过程和微生物群落动态进行了分析。在为期一个月的 MIC 实验中,微生物群落腐蚀碳钢并产生硫酸盐、甲烷和醋酸盐。使用高通量 Illumina MiSeq 测序和定量聚合酶链反应比较悬浮培养物中的细菌和古菌群落结构以及碳钢上形成的外壳。数据表明,古细菌中硫酸盐还原菌(Desulfovibrio genus)、氨基酸降解菌(Aminobacterium genus)和氢营养产甲烷菌Methanofollis在地壳中增加。
更新日期:2020-06-03
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