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日本金龟子芽孢杆菌为日本金龟子幼虫有名的致病病原菌.这种有机体只能在患病的虫体内发现,而在健康虫体内不存在;该有机体可以在体外的纯培养基上培养;将纯培养基接种到感病性虫体中去,能表现出同样的症状;有机体可以从供试虫中再分离并再度人工培养,仍保持原来有机体的特性.侵染程序可分为四个时期:接种后约两天潜育期(第一期),虫体内产生菌体但数量少.第3天到第5天(第二期),营养细胞迅速增殖,前孢形成并偶有孢子出现.第
Japan Beet Bacillus is a famous causative pathogen of Japanese chafer larvae that can only be found in diseased worms but not in healthy parasites. The organism can be cultured in pure in vitro culture. Pure cultures Inoculation into susceptible parasites can exhibit the same symptoms; organisms can be re-isolated from the test insects and re-cultivated, still retaining the characteristics of the original organism. Infection programs can be divided into four phases: vaccination After about two days of incubation period (the first phase), but the number of bacterial cells produced in the body but less.From the third to the fifth day (second phase), vegetative cells proliferated rapidly, the former sporulation and occasional spores appeared.