论文部分内容阅读
在植物病害中,目前世界上已经报道的细菌病害有300多种,无论是大田作物、果树、蔬菜、林木、花卉和药用植物等都可能发生一种或几种细菌病害。有些作物细菌病害发生日趋严重,日益受到有关部门的重视。植物病原细菌是寄生在植物上的原核生物,个体微小、繁殖快,结构简单,其形态有杆状的,外形变化很小,由于以上特点,使植物细菌病害的诊断和病原鉴定,不同于真菌病害和病毒病害。植物细菌病害常用的诊断方法有初诊和确珍两个过程。初诊包括病害的症状观察和显微镜检查,确诊包括病原细菌的分离培养和致病性测定以及主要的形态
Among plant diseases, there are over 300 kinds of bacterial diseases reported in the world, and one or several bacterial diseases may occur in field crops, fruit trees, vegetables, trees, flowers and medicinal plants. Some crops are more serious bacterial diseases, the increasingly concerned by the relevant departments. Phytopathogenic bacteria are prokaryotes parasitized in plants. They are small in size and reproduce fast with simple structure. Their morphology is rod-shaped and their shape is very little changed. Because of the above characteristics, the diagnosis and identification of plant bacterial diseases are different from that of fungi Diseases and virus diseases. Diagnostic methods commonly used in plant bacterial disease are newly diagnosed and indeed Zhen two processes. The initial diagnosis includes the observation of the symptoms of the disease and microscopic examination. The diagnosis and isolation of the pathogenic bacteria including pathogenicity and the main morphological