Wilkerson L S, Eagon R G
J Bacteriol. 1974 Oct;120(1):121-4. doi: 10.1128/jb.120.1.121-124.1974.
Sodium inhibited citrate uptake by two of the four strains of Aerobacter (Enterobacter) aerogenes used in these studies, had no effect on one strain, and stimulated citrate uptake by one strain. Two of the four strains grew well anaerobically on citrate in the presence of Na(+), one grew poorly, and one grew not at all either in the presence or absence of Na(+). Na(+) stimulated the aerobic growth of one strain on citrate, increased the total growth but not the rate of growth of one strain, and prolonged the lag phase but not the rate of growth or total growth of two strains. The experimental data reported herein, therefore, indicate that there are appreciable physiological differences among strains of A. aerogenes.
在这些研究中使用的四株产气气杆菌（肠杆菌）中，有两株的柠檬酸盐摄取受到钠的抑制，一株不受影响，而钠对另一株的柠檬酸盐摄取有刺激作用。在有Na(+)存在的情况下，四株菌中有两株在柠檬酸盐上厌氧生长良好，一株生长较差，还有一株无论有无Na(+)都完全不生长。Na(+)刺激了一株菌在柠檬酸盐上的需氧生长，增加了一株菌的总生长量但未提高其生长速率，延长了两株菌的延迟期，但未改变其生长速率或总生长量。因此，本文报道的实验数据表明，产气气杆菌菌株之间存在明显的生理差异。
