西南林业大学学报Issue(3)：14-19,6.DOI:10.3969/j.issn.2095-1914.2015.03.003
变栖克雷伯菌在石斛体内的定殖动态及其对石斛黑斑病的防效试验
Colonization of Klebsiella variicola in Dendrobium officinale and Its Control Effect on Dendrobium alternaria
摘要
Abstract
In this paper,made bacterial strain Klebsiella variicola SH -1 which was selected before as materi-al,explored colonization trends of Klebsiella variicola SH -1 on Dendrobium alternaria by rifampicin labeling,and then potting and greenhouse trials were conducted to discuss its control efficiency for Dendrobium alternaria.The results showed that SH -1 could colonize in Dendrobium,and the colonization trended to increase firstly and then decrease.After inoculation,colonization quantity reached the highest at 11d,15d and 20d,in roots,stems and leaves respectively,and then followed by a downward trend.Kept the relatively stable colonization level in Den-drobium,with 4.3 ×104 CFU /g,2.32 ×104 CFU /g and 1.84 ×104 CFU /g in roots,stems and leaves after 35d, respectively.The result of potted tests on prevention of the Dendrobium alternaria showed that SH -1 had obvious control effect on Dendrobium alternaria,the control effect was the same as conventional medicine Dimetachlone that the relative control effect reached 72%,which could reach 71.53%.关键词
变栖克雷伯/定殖动态/石斛黑斑病/防治Key words
Klebsiella variicola/colonization trends/Dendrobium alternaria/prevention分类
农业科技引用本文复制引用
赵明富,李梦娇,张芬芬,孙媛,郭李川,宋爽,余代宏,文国松,徐绍忠..变栖克雷伯菌在石斛体内的定殖动态及其对石斛黑斑病的防效试验[J].西南林业大学学报,2015,(3):14-19,6.基金项目
国家“十二五”科技支撑计划项目（2011BAI13B01－02－03）资助；农业科技成果转化资金项目（2013GB2F300441）资助。 （）
