Charakhch'ian I A, Vorob'eva L I
Mikrobiologiia. 1984 Jan-Feb;53(1):38-42.
The kinetics of sulfate assimilation by Propionibacterium shermanii was found to be peculiar. The assimilation and excretion of sulfate into the medium had an oscillatory character. Sulfate was shown to pass into the cell by active transport. Sulfate transport is described by the Michaelis--Menten kinetics. Thiosulfate and sulfite inhibit sulfate assimilation. Cysteine does not entirely inhibit sulfate assimilation by the cells. The system of sulfate transport was repressed by cysteine to a small extent. The intracellular pool of inorganic sulfate changed in the process of culture growth.
已发现谢氏丙酸杆菌对硫酸盐同化的动力学特性较为特殊。硫酸盐向培养基中的同化和排泄具有振荡特性。研究表明，硫酸盐通过主动运输进入细胞。硫酸盐运输符合米氏动力学。硫代硫酸盐和亚硫酸盐会抑制硫酸盐同化。半胱氨酸不会完全抑制细胞对硫酸盐的同化。半胱氨酸对硫酸盐运输系统有一定程度的抑制作用。在培养生长过程中，细胞内无机硫酸盐池会发生变化。
