کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1468884 1510012 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Marine rust tubercles harbour iron corroding archaea and sulphate reducing bacteria
ترجمه فارسی عنوان
تومورهای زنگ زنگی دریایی حاوی باکتری های قارچ خوراکی آهن و سولفات است
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی


• 31% of sequences from marine rust tubercles belonged to Methanococcus maripaludis.
• This archaea was previously shown to extract electrons directly from steel.
• Archaea may be significant contributors to marine corrosion.
• Sulphate reducing bacteria were present in tubercles in relatively low numbers.

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 83, June 2014, Pages 189–197
نویسندگان
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