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首页> 外文期刊>Bioscience, Biotechnology, and Biochemistry >Electrochemically applied potentials induce growth and metabolic shift changes in the hyperthermophilic bacterium Thermotoga maritima MSB8
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Electrochemically applied potentials induce growth and metabolic shift changes in the hyperthermophilic bacterium Thermotoga maritima MSB8

机译：电化学施加的电位诱导高热细菌Thermotoga Maritima MSB8中的生长和代谢变化变化

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摘要

Bioelectrochemical systems are an attractive technology for regulating microbial activity. The effect of an applied potential on hydrolysis of starch in Thermotoga maritima as a model bacterium was investigated in this study. A cathodic potential(-0.6 and -0.8 V) induced 5-h earlier growth initiation of T. maritima with starch as the polymeric substrate than that without electrochemical regulation. Moreover, metabolic patterns of starch consumption were altered by the cathodic potential. While acetate, H-2, and CO2 were the major products of starch consumption in the control experiment without electrolysis, lactate accumulation was detected rather than decreased acetate and H-2 levels in the bioelectrochemical system experiments with the cathodic potential. These results indicate that the applied potential could control microbial activities related to the hydrolysis of polymeric organic substances and shift carbon and electron flux to a lactate-producing reaction in T. maritima.
机译：生物电化学系统是一种用于调节微生物活性的有吸引力的技术。 本研究研究了淀粉中淀粉水解施用潜力的影响。 阴极电位（-0.6和-0.8V）诱导5小时早期的生长，用淀粉作为聚合物基底而不是没有电化学调节的淀粉。 此外，通过阴极潜力改变淀粉消费的代谢模式。 虽然醋酸盐，H-2和CO 2是对照实验中的淀粉消费的主要产物，但没有电解，检测乳酸乳酸积聚，而不是在具有阴极潜力的生物电影学系统实验中降低醋酸乙酸盐和H-2水平。 这些结果表明，施加的电位可以控制与聚合物有机物质的水解有关的微生物活性，并将碳和电子通量的水解和电子通量在T.Maritima中产生乳酸盐反应。

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