Effects of Agro-antibiotic 211 on Related Substances Inducing Rice Resistance to Sheath Blight

• 作者: Li Zhang Wang Qingsong Wei Limei Wei Saijin Zou Zhiming
• 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: Agro-antibiotic 211 RICE SHEATH blight PHENOLIC METABOLITES PATHOGENESIS-RELATED protein
• 年，卷（期）: 2019,（1）
• 页码范围: 28-30
• 页数: 3页
• 分类号: S

摘要

[Objective]The paper was to explore the effect of agro-antibiotic 211,the active substance produced by streptomyces JD211,on rice resistance to sheath blight.[Method]Through pot experiment,the induction effect of agro-antibiotic 211 on rice resistance against sheath blight was analyzed,and the effect on phenolic metabolites and pathogenesis-related proteins were studied.[Result]The total phenol,phenylalanine ammonia-lyase,lignin,chitinase andβ-1,3-glucanase of rice leaves treated by agro-antibiotic 211 were slightly higher than that in control.At 96 h post treatment,the activity ofβ-1,3-glucanase was 36.84%and 10.48%higher than that of blank control and CK+Rhizoctonia solani,respectively;at 120 h post treatment,the activity of phenylalanine ammonia-lyase were 42.13%and 62.28%higher than that of blank control and CK+R.solani,respectively.The effect of agro-antibiotic 211+R.solani was equal or slightly higher than that of Jinggangmycin+R.solani.[Conclusion]Agro-antibiotic 211 induced rice resistance against sheath blight,and was closely related to the accumulation of phenolic substances and the increase of pathogenesis-related proteins.