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电化学  2012 

绿脓杆菌PseudomonasaeruginosaBTE-1直接电催化特征

, PP. 73-78

Keywords: PseudomonasaeruginosaBTE-1,生物膜,电化学催化

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Abstract:

本文研究厌氧条件下产电绿脓杆菌P.aeruginosaBTE-1的电化学催化特征。研究结果表明,P.aeruginosaBTE-1菌株在厌氧条件下,不能分泌可充当电子介体的绿脓菌素,但可通过在电极表面形成生物膜呈现了直接电催化性能。P.aeruginosaBTE-1在电极表面形成生物膜与其在特定电极电位下向电极传递电子的过程直接相关,适宜的电位为+0.2V(vs.SCE),电位过高可能会损害P.aeruginosaBTE-1细胞。室温范围内升高温度可增强P.aeruginosaBTE-1生物膜电催化活性,但过高的温度(>60℃)会抑制生物膜电催化活性。循环伏安曲线显示,在厌氧条件下形成的P.aeruginosaBTE-1生物膜,具有与典型产电菌株G.sulfurreducens相近的氧化还原电位(-0.4V~-0.2Vvs.SCE)。P.aeruginosaBTE-1生物膜可电催化酵母抽取物和葡萄糖,但不能电催化醋酸盐。

References

[1]  Logan B E, Regan J M. Electricity-producing bacterial communities in microbial fuel cells [J]. Trends Microbiol, 2006, 14(12): 512-518.
[2]  Luo Y, Zhang R J, Liu G, et al. Electricity generation from indole and microbial community analysis in the microbial fuel cell [J]. J Hazard Mater, 2010, 176(24): 759-764.
[3]  Lovley D E. Bug juice: harvesting electricity with microorganisms [J]. Nat Rev Microbiol, 2006, 4(7): 497-508.
[4]  Dumas C, Mollica A, Féron D, et al. Checking graphite and stainless anodes with an experimental model of marine microbial fuel cell [J]. Bioresource Technology, 2008, 99(18): 8887–8894.
[5]  Jiang J Q(姜珺秋), Zhao Q L(赵庆良), Wei L L(魏亮亮), et al. Extracellular biological organic matters in microbial fuel cell using sewage sludge as fuel [J]. Water Res, 2010, 44(7): 2163-2170.
[6]  Bond D R, Srikanth S, Marsili E, et al. Electrochemical Characterization of Geobacter sulfurreducens Cells Immobilized on Graphite Paper Electrodes [J]. Biotechnol Bioeng, 2008, 99(5): 1065-1073.
[7]  Marsili E, Rollefson J B, Baron D B, et al. Microbial Bio?lm Voltammetry: Direct Electrochemical Characterization of Catalytic Electrode-Attached Bio?lms [J]. Appl Environ Microb, 2008, 74(23): 7329-7337.
[8]  Cao X X (曹效鑫), Fan M Z (范明志), Liang P(梁鹏), et al. Effects of anode potential on the electricity generation performance of Geobacter Sulfurreducens [J]. Chem J Chinese Universities(高等学校化学学报), 2009, 30(5): 983-987.
[9]  Niu Z X(牛钟相), Li Y L (李雅林). The Study Progress of Pseudomonas aeruginosa Diseases [J]. Progress in Veterinary Medicine(动物医学进展), 2003, 24 (1): 16-18.
[10]  Iversen B G, Brants?ter A B, Aavitsland P. Nationwide study of invasive Pseudomonas aeruginosa infection in Norway: Importance of underlying disease [J]. J Infection, 2008, 57(2): 139-146.
[11]  Coenye T, Nelis H J. In vitro and in vivo model systems to study microbial bio?lm formation [J]. Microbiol METH, 2010, 83(2): 89-105.
[12]  Rabaey K, Boon N, Hofte M, et al. Microbial Phenazine Production Enhances Electron Transfer in Biofuel Cells [J]. Environ Sci Technol, 2005, 39(9): 3401-3408.
[13]  Venkataraman A, Rosenbaum M, Halitschke R, et al. Quorum sensing regulates electric current generation ofPseudomonas aeruginosa PA14 in bioelectrochemical systems [J]. Electrochem Commun, 2010, 12: 459-462.
[14]  Shuang C D(双陈冬), Zhang E R(张恩仁), Diao G W(刁国旺), et al. Electricity generation in microbial fuelcells catalyze by mixed culture and pure culture[J]. Electrochemictry(电化学), 2008, 14(3): 313-318.
[15]  Zhan Y L(詹亚力), Wang Q (王琴), Zhang P P(张佩佩), et al. Investigation on influence factors and mechanism of microbial fuel cell [J]. Chem J Chinese Universities(高等学校化学学报), 2008 , 29(1): 144-14.
[16]  Lloyd J R, Leang C, Lovley D R, et al. Biochemical and genetic characterization of PpcA, a periplasmic c-type cytochrome in Geobacter sulfurreducens [J]. Biochem J, 2003, 369(1): 153-161.
[17]  Pessanha M, Londer Y Y, Long W C, et al. Redox characterization of Geobacter sulfurreducens cytochrome c(7): Physiological relevance of the conserved residue F15 probed by site-speci?c mutagenesis [J]. Biochem, 2004, 43(30): 9909- 9917.
[18]  Magnuson T S, Isoyama N, Lovley D R, et al. Isolation, characterization, and genesequence analysis of a membrane associated 89 kDa Fe(III) reducing cyotchrome from Geobacter sulfurreducens [J]. Biochem J, 2001, 359: 147-152.

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