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根据文献记载,全蚀病主要为害麦类作物,特别是小麦。玉米虽是全蚀病菌寄主之一,但一向被认为是全蚀病菌转病寄主,可以轻度感染,不引起明显症状,然而目前发现的全蚀病严重为害玉米。为了查明玉米全蚀病菌侵染规律,我们于1986～1987年,对玉米全蚀病菌的生物学性状进行了研究。一、材料与方法1.菌种来源:采自田间玉米罹病根茬。选取黑皮,剪成3～5毫米小段,用1%硝酸银消毒0.5～1分钟,经无菌水冲洗后,移入 PDA培养基平板上,于25℃恒温下暗培养4～5天,切取菌落边缘菌苔,进行纯化培养,获得玉米
According to the literature, total eclipses are mainly responsible for wheat crops, especially wheat. Although it is one of the hosts of the total eclogite bacterium, corn has always been considered as the host of the ecliptic arthropod, and can be mildly infected without causing obvious symptoms. However, the total eclipses discovered so far have seriously damaged the corn. In order to find out the law of infection of cornspecies of corn, we studied the biological characters of the total eclipse coronavirus from 1986 to 1987. First, materials and methods 1. Source of bacteria: collected from the field of diseased root stubble corn. Select black, cut into small pieces of 3 to 5 mm, disinfected with 1% silver nitrate 0.5 to 1 minute, rinsed with sterile water, into the PDA medium plate, incubated at 25 ° C under dark for 4 to 5 days, cut Colony edge of lawn, purified culture, access to corn