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期 刊 ：植物保护学报 1989年

关键词：土霉素；桑；黄化型；萎缩病；类菌原体；

Keywords:mulberry, mycoplasma-like organism,

摘 要 ：为探讨土霉素(OTC)对植物类菌原体病害的治疗机理,本课题综合考察了OTC对桑树黄化型萎缩病及其病原类菌原体的影响。结果发现:(1)OTC对病害的治疗效果与进入树体的OTC浓度呈显著正相关;(2)在植物体内处理的情况下,病原类菌原体(MLO)抽提物的蛋白质含量降低,电泳图谱上蛋白带减少;MLO的形态结构发生了改变,并随进入树体的OTC含量的增加而加剧;(3)离体处理,MLO的形态结构无明显变化。认为干扰和破坏MLO的代谢作用是OTC的治病机理之一。

Abstract:An experiment involving aplication of oxytetracyclin (OTC) to treatmulberry yellow-dwarf disease (MYDD) caused by mycoplasma-likeorganism (MLO) has been carried out to tentatively elucidate the therapymechanism.The results were concluded as foollows:(1) i

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