1982和1984年用~(14)C-葡萄糖标记水稻白叶枯细菌(OS_(14)和勃利菌种),对水稻进行田间人工接种,翌年用液体闪烁测量技术检测带菌杂草15种。从水稻三叶期开始,由杂草、病稻株进入田水中的病菌侵染秧苗根系,沿植株n+2叶片向上侵染,七叶龄后,病菌侵染植株各器官。 In 1982 and 1984, rice bacterial blight (OS_ (14) and Boli bacteria) were labeled with ~ (14) C-glucose, and rice was inoculated artificially in field and 15 species of weeds were detected by liquid scintillation method the following year. From the beginning of rice three-leaf stage, weeds and diseased rice plants infiltrated the roots of the seedlings in the water of the field. The roots of the seedlings were infested along the leaves of plants n + 2. After seven-leaf age, the pathogens invaded the organs of the plants.