Ames P, Schluederberg S A, Bergman K
J Bacteriol. 1980 Feb;141(2):722-7. doi: 10.1128/jb.141.2.722-727.1980.
Rhizobium meliloti exhibited behavior resembling that of other chemotactic bacteria. Nonflagellated, nonmotile but flagellated, and nonchemotactic mutants were isolated, and genetic mapping placed all three types of lesions within a small region of the R. Meliloti chromosome. Results from nodulation experiments performed with these mutants indicate that members of the three classes (Fla-, Mot-, and Che-) infect and produce as many nodules on alfalfa plants as does the wild-type strain.
苜蓿中华根瘤菌表现出与其他趋化细菌相似的行为。分离出了无鞭毛、不运动但有鞭毛以及无趋化性的突变体，遗传图谱显示这三种类型的损伤都位于苜蓿中华根瘤菌染色体的一个小区域内。用这些突变体进行的结瘤实验结果表明，这三类（Fla-、Mot-和Che-）突变体在苜蓿植株上的感染和结瘤数量与野生型菌株一样多。
