海水环境中异化铁还原菌所致金属材料腐蚀的研究进展

王玉, 吴佳佳, 张盾

Research Progress on Corrosion of Metal Materials Caused by Dissimilatory Iron-reducing Bacteria in Seawater

WANG Yu, WU Jiajia, ZHANG Dun

表1 海水环境已知的部分IRB种类

Table 1 Some species of IRB known in marine environment

Genus Original source Characteristic description Bacterial Desulfuromonas Marine sediment Gram-negative bacilli, obligate anaerobes, atrichic, c-cytochrome, symbiotic with Marinobacter [11] Shewanella Seawater, intertidal zone, marine sediment, marine organism, etc Gram-negative bacilli, facultative anaerobic, single polar flagellum, optimal temperature 30 ℃, some of them symbiotic with Desulfovibrio, Brevibacillus and algae[12,13,14] Geobacter Marine sediment Gram-negative bacilli, obligate anaerobes, optimal temperature 22 ℃, symbiotic with Shewanella, or interspecies symbiosis[15] Rhodoferax Bay sediment Gram-negative bacilli, facultative anaerobic, single polar flagellum, optimal temperature 25 ℃, symbiotic with Azoarcus, Methanospirillum and Pseudomonas [16,17] Deferribacter Arabian Sea, off-shore oil facility, deep hydrothermal vents (east pacific rise and the mid-atlantic ridge) Obligate anaerobes or facultative anaerobic, multi-electron acceptor, symbiotic with Epsilonproteobacteria [18,19,20,21] Archaea Hyperthermus Deep hydrothermal zone Obligate anaerobes, grow above 90 ℃, inactive under 80 ℃[22] Geoglobus Ashadze field Only H2 as electron donor to reduce insoluble Fe(Ⅲ)[23]