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重阳木丛枝病普遍发生在我国南方各省,尤其安徽、湖北一些地区危害严重。1983年作者用电镜证实了重阳木丛枝病为类菌原体病害。本病在国外尚无报道。在传病试验中证实了感病植株病皮能嫁接传病。树木感染MLO病害后,其病原在感病植株中分布局限且浓度较低。长春花是多年生草本植物,植物MLO病原能在长春花内大量繁殖,成为研究树木MLO病害的理想试验植物。1988年试验证实泡桐丛枝病MLO病原可由南方菟丝子传染到长春花上,表现典型丛枝黄化及花变叶病状。本文将报道用南方菟丝子传染重阳木丛枝病MLO到长春花上,并回接成功。
Shrubs are common in all southern provinces of our country, especially in Anhui and some areas of Hubei Province. 1983, the author confirmed by electron microscopy Shuangyang wood birch disease as mycoplasma disease. The disease has not been reported in foreign countries. In the disease test confirmed the susceptible plant disease skin grafting disease. After the tree is infected with MLO disease, its pathogen is localized and has a low concentration in susceptible plants. Catharanthus roseus is a perennial herbaceous plant, and plant MLO pathogen can multiply in Catharanthus roseus, making it an ideal test plant for studying MLO disease in trees. Tests in 1988 confirmed that Paulownia witches broom disease MLO pathogen can be infected by the South dodder infestation of Catharanthus roseus, the typical symptoms of twig yellowing and curly hair. This article will report the infection of C. danguensis with the southern dusarium to the Catharanthus roseus MLO to Vinca, and the succession is reversed.