柑橘溃疡病拮抗菌的分离筛选及其田间防效  

The study on isolating antagonistic bacteria and the biological control of Xanthomonas campestris

作　　者：张洪波[1] 巢进[1] 王跃强[1] 王山[2] 谢新文 肖启明[1] 

机构地区：[1]湖南农业大学生物安全科技学院,湖南长沙410128 [2]湖南省植保植检站,湖南长沙410005 [3]冷水江市农业局,湖南冷水江417500

出　　处：《湖南农业大学学报（自然科学版）》2007年第5期605-607,共3页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：湖南省教育厅重点项目(07A027)

摘　　要：从湖南衡阳、常德、长沙、永州等地的柑橘园采集标本,分离、筛选柑橘叶表微生物,共分离到225株细菌,9株真菌.平板拮抗试验结果表明,其中6个菌株有较好的防效,占分离菌株的13.7%.通过对菌株过滤液和定殖力的测定,菌株Kx15和Kx48效果明显,在温室对柑橘溃疡病的防治效果分别达到45.6%和55.6%,在重病果园中的防治效果分别为40.3%,47.7%,且Kx48要优于Kx15.菌株Kx15初步鉴定属于葡萄糖杆菌属,Kx48属于乳酸杆菌属.225 bacteria strains and 9 fungis strains were isolated from the leaves surface of some species of citrus from citrus orchard in Hengyang, Changde, Changsha and Yongzhou. The study showed that six strains and good antagonistic effect. By determination of filtrate liquid and colonization power, the strains KxlS, Kx48 were the best drone fungus. The two strains also had good controlling in the greenhouse test and field test. The result showed Kx48 was better than Kxl5. According to the morphological and physical chemistry character, Kxl5 is Gluconobacter sp. and Kx48 is Lactobacillus so..

关 键 词：柑橘溃疡病 拮抗菌 葡萄糖杆菌 乳酸杆菌 生物防治 

分 类 号：S432.23[农业科学—植物病理学]