Kihara M, Macnab R M
J Bacteriol. 1979 Oct;140(1):297-300. doi: 10.1128/jb.140.1.297-300.1979.
Salmonella, but not Escherichia coli, was attracted to citrate, a distinction that is understandable in view of the inability of E. coli to transport tricarboxylic acids. The Salmonella response to citrate and to two previously described attractants, aspartate and malate, was mutually noncompetitive. Citrate taxis different from citrate uptake in that it did not require Na+, was constitutive, and was not repressible by glucose.
沙门氏菌能被柠檬酸盐吸引,而大肠杆菌则不能,鉴于大肠杆菌无法转运三羧酸,这种区别是可以理解的。沙门氏菌对柠檬酸盐以及两种先前描述的引诱剂天冬氨酸和苹果酸的反应是相互非竞争性的。柠檬酸盐趋化性不同于柠檬酸盐摄取,因为它不需要钠离子,是组成型的,并且不受葡萄糖的抑制。