Kato J, Ito A, Nikata T, Ohtake H
Department of Fermentation Technology, Hiroshima University, Japan.
J Bacteriol. 1992 Aug;174(15):5149-51. doi: 10.1128/jb.174.15.5149-5151.1992.
Pseudomonas aeruginosa was shown to be attracted to phosphate. The chemotactic response was induced by phosphate starvation. The specificity of chemoreceptors for phosphate was high so that no other tested phosphorus compounds elicited a chemotactic response as strong as that elicited by phosphate. Competition experiments showed that the chemoreceptors for phosphate appeared to be different from those for the common amino acids. Mutants constitutive for alkaline phosphatase showed the chemotactic response to phosphate regardless of whether the cells were starved for phosphate.
已表明铜绿假单胞菌会被磷酸盐吸引。趋化反应由磷酸盐饥饿诱导。磷酸盐化学感受器的特异性很高,以至于其他测试的磷化合物均未引发像磷酸盐那样强烈的趋化反应。竞争实验表明,磷酸盐化学感受器似乎与常见氨基酸的化学感受器不同。碱性磷酸酶组成型突变体对磷酸盐表现出趋化反应,无论细胞是否处于磷酸盐饥饿状态。