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倒挂金钟(Fuchsia bybrida)也称灯笼花,原产南美洲,是一种美丽的观赏植物。倒挂金钟小叶病严重地影响植株的正常生长。病株轻者叶片变小,发红,节间变短,形成丛枝,生长阻滞,植株矮化:重者很快死亡。我们从1983年开始对该病进行研究,通过在患病植株叶脉的超薄切片中,观察到大量多形态的类菌原体(mycoplasma like organisms,简称MLO)。四环素对病症有明显的抑制作用,而在健株上未发现有MLO的存在,初步认为MLO是引起该病的病原体。125ppm的盐酸四环素液可使病症受到明显的抑制。
Fuchsia bybrida also known as the lantern, native to South America, is a beautiful ornamental plant. The fuchsia leaf blight seriously affects the normal growth of the plant. Slightly lighter leaves smaller leaves, redness, internodes become shorter, the formation of Congzhi, growth retardation, plant dwarf: severe death soon. We started from 1983 to study the disease, through the thin slices of diseased plant veins, observed a large number of polymorphic forms of mycoplasma like organisms (MLO). Tetracycline has a significant inhibitory effect on the disease, and in the healthy strains did not find the presence of MLO, initially considered MLO is the causative agent of the disease. 125ppm of tetracycline hydrochloride solution can be significantly inhibited the disease.