Control Efficacy of Streptomyces sp. SY-L12 and Chitooligosaccharide on Kiwifruit Bacterial Canker, Pseudomonas syringae pv. actinidiae

• 作者: Fan Jinzhe Jiao Jiao Li Jiguang Wang Fang Wei Tingting Xin Xuecheng Zhou Fan
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 细菌性溃疡病 PSEUDOMONAS 防治效果 链霉菌 猕猴桃 壳寡糖 生长抑制率 烟草野火病菌
• 年，卷（期）: 2017,（4）
• 页码范围: 17-20
• 页数: 4页
• 分类号: S436.634.1

摘要

[Objective]The paper was to develop a priority scheme for prevention and control of kiwifruit bacterial canker with biological agents. [Method]The inhibitory effect of Streptomyces sp. SY-L12 on the growth of Pseudomonas syringae pv. actinidiae were assessed using liquid co-culture and inhibition zone methods. The control efficiency of Streptomyces sp. fermentation broth against kiwifruit bacterial canker was studied via potted trial. [Result] As Streptomyces sp. SYL12 was incubated for 24 h,the growth inhibition rate of its fermentation broth on P. syringae pv. actinidiae was 94. 0%. The control efficiency of fermentation broth against P. syringae pv. actinidiae was the best of 85. 4% in potted trial when Streptomyces sp. SY-L12 grew at 28℃,150 rpm for 8-9 d,better than that of control agent copper hydroxide. The control efficiency was improved as the agent was mixed with 1 mg/L chitooligosaccharide. [Conclusion] Streptomyces sp.SY-L12 could effectively inhibit the growth of P. syringae pv. actinidiae,and can be developed as biological agent against kiwifruit bacterial canker.