三、植物类菌原体病害的诊断类菌原体侵染植物所产生的一些症状很有特色。从植株外部症状,可以初步了解到病害是否与类菌原体有关。但是,病毒侵染植物,甚至某些植物生理性病害,也会有近似于类菌原体引起的症状。因此,需要进一步鉴定病原。类菌原体的主要特性之一是对四环素族抗菌素敏感,因而常常采用四环素 Third, the diagnosis of plant pathogens Mycoplasma infection plants produced by some of the symptoms are very unique. From the external symptoms of plants, you can initially understand whether the disease is associated with mycoplasma. However, the virus infects plants, and even some physiological plant diseases, there will be similar to the symptoms caused by mycoplasma. Therefore, further identification of pathogens is needed. One of the main features of the mycoplasma is tetracycline antibiotic sensitivity, and therefore often used tetracycline