EFFECT OF DISSOLVED-OXYGEN ON NITROGEN-FIXATION BY A-VINELANDII .1. FREE-CELL CULTURES

被引：8

作者：

DILUCCIO, RC ^{[1
]}

KIRWAN, DJ ^{[1
]}

机构：

[1] UNIV VIRGINIA, DEPT CHEM ENGN, CHARLOTTESVILLE, VA 22901 USA

来源：

BIOTECHNOLOGY AND BIOENGINEERING | 1984年 / 26卷 / 01期

关键词：

D O I：

10.1002/bit.260260115

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

As part of an investigation into the use of biological N2 fixation for fertilizer NH3 production, continuous culture studies of respiration and N2 fixation in the aerobic bacteria A. vinelandii under O2 limited conditions were conducted. Respiration and growth rates followed Monod forms with respect to dissolved O2 concentration. Specific O2 fixation rate and nitrogenase activity exhibited maximum values at dissolved O2 concentrations of .apprx. 0.02 mM (10% of air saturation). Apparently, careful control of O2 in the environment is necessary to optimize fixed N production by this organism.

引用

页码：81 / 86

页数：6

共 28 条

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