An infection thread is formed by the cytoplasm of the host cell . 侵染线是由寄主细胞的细胞质形成的。
2.
Formation of infection thread and nodules at early symbiotic stage between 2 - 33 and a . sinicus were monitored in situ by using laser confocal scanning microscope ( lcsm ) and fluorescent microscope . an effective vector system and an examination method were established for further molecular genetics study on rhizobium - legume symbiosis 6 ,以华癸中生根瘤菌jssa16 ( phn109 )和7653r ( g万, mut3 )进行竞争结瘤实验的结果与预期相符,初步证明了g公助帅mut3双重报告基因在华癸中生根瘤菌占瘤率研究中的应用潜力。