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大肠杆菌在延胡索酸和分子氢上厌氧生长期间的细胞产量。

Cell yields of Escherichia coli during anaerobic growth on fumarate and molecular hydrogen.

作者信息

Bernhard T, Gottschalk G

出版信息

Arch Microbiol. 1978 Mar;116(3):235-8. doi: 10.1007/BF00417845.

DOI:10.1007/BF00417845
PMID:348144
Abstract

Escherichia coli was grown anaerobically on sodium fumarate and molecular hydrogen or sodium formate in continuous culture. The maximal growth yield and the maintenance coefficient were determined. In a mineral medium a Ymax(fum) value of 6.6 g dry weight per mol fumarate was found. This value increased to 7;5 when casamino acids were present in the medium. From these data and the corresponding Ymax(ATP) values it could be calculated that per mol of fumarate reduced, 0;4 mol of ATP became available for growth. In batch culture a Yfum value of 4.8 g dry weight per mol fumarate was determined.

摘要

大肠杆菌在连续培养中以富马酸钠和分子氢或甲酸钠为底物进行厌氧培养。测定了最大生长产量和维持系数。在矿物培养基中,发现每摩尔富马酸盐的Ymax(fum)值为6.6克干重。当培养基中存在酪蛋白氨基酸时,该值增加到7.5。根据这些数据和相应的Ymax(ATP)值,可以计算出每还原1摩尔富马酸盐,有0.4摩尔ATP可用于生长。在分批培养中,测定了每摩尔富马酸盐的Yfum值为4.8克干重。

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Initial cloning and sequencing of hydHG, an operon homologous to ntrBC and regulating the labile hydrogenase activity in Escherichia coli K-12.hydHG的初始克隆与测序,hydHG是一种与ntrBC同源且调控大肠杆菌K-12中不稳定氢化酶活性的操纵子。
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