Department of Plant Pathology, Montana State University, Bozeman, Montana 59715.
Plant Physiol. 1976 May;57(5):820-3. doi: 10.1104/pp.57.5.820.
Rhizobium spp. show chemotaxis to plant root exudates. Both legumes and non-legume root exudates attract the different rhizobia studied. However, the bacteria show a differential response in that they are attracted to the root exudates of some plants and show no attraction toward others. An example of negative chemotaxis was also observed. The trefoil strain of Rhizobium shows chemotaxis which is qualitatively different from that observed in other bacteria in that simple sugars, di-and trisaccharides, dextrans, and amino acids do not attract this bacterium.
根瘤菌对植物根渗出物表现出趋化性。豆科植物和非豆科植物的根渗出物都吸引了不同的根瘤菌的研究。然而，这些细菌表现出不同的反应，它们被一些植物的根渗出物所吸引，而对其他植物的根渗出物则没有吸引力。也观察到了负趋化性的一个例子。三叶草根瘤菌表现出的趋化性与其他细菌观察到的趋化性在性质上有所不同，因为单糖、二糖和三糖、葡聚糖和氨基酸都不会吸引这种细菌。
