Chen J, Groves R, Civerolo E, Livingston S
United States Department of Agriculture, Agricultural Research Service, San Joaquin Valley Agricultural Sciences Center, 9611 South Riverbend Avenue, Parlier, CA 93648, USA.
Can J Microbiol. 2007 Mar;53(3):435-9. doi: 10.1139/W06-134.
Stereomicroscopic observations using oblique illuminations revealed the presence of two types of movement trails by Xylella fastidiosa strains (A- and G-genotypes) isolated from almond-leaf scorch samples on the surface of PW and PD3 culture media. The A-genotype strains showed curved motility trails, and the G-genotype strains showed straight motility trails. Haloes were found around some G-genotype colonies due to the excretion of unknown factors and (or) compounds, which might be related to bacterial surface motility.
利用斜射光进行的体视显微镜观察显示，从杏仁叶焦枯样本中分离出的两种类型的木质部难养菌菌株（A基因型和G基因型）在PW和PD3培养基表面留下了两种运动轨迹。A基因型菌株显示出弯曲的运动轨迹，而G基因型菌株显示出直线运动轨迹。在一些G基因型菌落周围发现了晕圈，这是由于未知因子和（或）化合物的分泌所致，这些因子和化合物可能与细菌的表面运动有关。
