van der Drift C, Duiverman J, Bexkens H, Krijnen A
J Bacteriol. 1975 Dec;124(3):1142-7. doi: 10.1128/jb.124.3.1142-1147.1975.
A motile Streptococcus was isolated and its chemotactic behavior toward sugars and amino acids was studied. Motility was optimal in the presence of an exogenous energy source and a nonionic detergent, e.g., Tween 80 or Brij-36. Both glucose and pyruvate could serve as energy source. Chemotaxis toward leucine was optimal at pH 7 to 8.5 and a temperature between 30 and 37 C. The Streptococcus showed a chemotactic response toward a variety of sugars. All commonly occurring L-amino acids, except alanine, asparagine, aspartate, glutamate, arginine, and lysine, were attractants. From concentration response curves the thresholds, peak concentrations, and optimal responses were determined.
分离出一株运动性链球菌，并研究了其对糖类和氨基酸的趋化行为。在存在外源能源和非离子去污剂（如吐温80或Brij - 36）的情况下，运动性最佳。葡萄糖和丙酮酸都可作为能源。对亮氨酸的趋化作用在pH 7至8.5以及30至37摄氏度的温度下最佳。该链球菌对多种糖类表现出趋化反应。除丙氨酸、天冬酰胺、天冬氨酸、谷氨酸、精氨酸和赖氨酸外，所有常见的L - 氨基酸都是引诱剂。根据浓度反应曲线确定了阈值、峰值浓度和最佳反应。
