摘要
本文研究了泡桐丛枝病病原和传毒途径。结果表明:类菌原体多为圆形或椭圆形,直径180~800mμ。多存在于病丛枝韧皮部筛管细胞内。繁殖方式分芽殖和两两分裂两种。种根和茶翅蝽、小绿叶蝉是泡桐丛枝病的传毒介体。种子不传毒,嫁接能够传毒。
The result of studying on the pathogen and virus spread of Paulownia withes-broom diseose shows that the mycoplasma like-organi- sms are often round or oval in shape,180~800 mu in diameter,and exist in the sieve tube cells of phloem;Their propagation paterns could be divi- ded into two types-bud division and mitosis.Maternally clonic roots,Hal- yomorpha halys and Empoasca Fravescens Fabricius are the major mediums of virus spread in the Paulownia withes-broom disease.Grafting could spr- ead the disease,but seeds do not.
出处
《陕西林业科技》
北大核心
1990年第1期23-25,共3页
Shaanxi Forest Science and Technology