机构地区: 西南林学院
出 处: 《云南大学学报(自然科学版)》 2008年第S1期439-442,共4页
摘 要: 应用自然沉降法,采用牛肉膏蛋白胨琼脂培养基进行细菌采样及培养,对滇润楠的抑菌力及其变化规律进行了研究,结果表明:滇润楠树体周围空气中的细菌含量较对照区域显著降低,抑菌效果达40%以上,表明滇润楠具有较强的抑菌作用.干季中滇润楠的自然抑菌率高于雨季,分别为42%和40%.干季中滇润楠抑菌率的日变化在35.82%~61%之间,1 d中抑菌有2个较明显的峰值,分别出现在10:00和16:00,抑菌率分别达61.0%和50.0%;而在雨季,其抑菌率日变化在40%~71.7%之间,1 d中抑菌仅1个峰值,出现在13:00,抑菌率达71.1%;除7:00外,雨季中随日进程各时段的抑菌率均高于干季. The effect of Machilus yunnanensis var.on inhibiting bacteria was surveyed by the natural settling method and the medium with beef,peptone and agar.and the variations of the bacterial contents in the air around the sampling trees were mensurated to explore the function of M.yunnanensis var.to inhibit bacteria.The results showed that M.yunnanensis var.had thehigher ability of inhibiting bacteria,the bacteria in the air around the M.yunnanensis var.were significantly less than that of control.And the effect w...