Oxygen Profiles in, and in the Agar Beneath, Colonies of Bacillus Cereus, Staphylococcus Albus and Escherichia Coli

作者：A. C. Peters, JULIAN W. T. WIMPENNY, Jana Coombs · 发表于：Microbiology · 年份：1987 · DOI：10.1099/00221287-133-5-1257 · 被引用次数：64 · 研究领域：thermodynamics and calorimetric analyses、Microbial Inactivation Methods、Spectroscopy Techniques in Biomedical and Chemical Research

The paper reports the use of microelectrodes to measure O2 penetration in different aged colonies of Bacillus cereus, Escherichia coli and Staphylococcus albus. In young (18 h) colonies of B. cereus and E. coli O2 disappeared at depths of 25-30 micron and 35-40 micron respectively. In young S. albus colonies, O2 reached a minimum but was never completely absent. As colonies aged (24-168 h) the depth to which O2 penetrated increased.