中国烟草科学2025，Vol.46Issue(1)：33-39,7.DOI:10.13496/j.issn.1007-5119.2025.01.005
丁香酚诱导烟草抗青枯病的效果及促生作用
Induction of Eugenol for Tobacco Resistance to Bacterial Wilt Disease and Its Growth Promotion Effect
摘要
Abstract
To screen effective prevention and control methods for tobacco wilt disease,a pot experiment was conducted to determine the prevention and control effect of eugenol on wilt disease,and the changes in tobacco physiological and biochemical indices,defense related substances,and enzyme activity were detected.The results showed that pre-treatment of 1 μL/mL eugenol for 3 days and inoculation with Ralstonia solani obtained control effect of 53.46%against Ralstonia solani after 15 days of inoculation.The treatment of 1 μ L/mL eugenol improved growth of tobacco,with the leaf length,leaf width,plant height,and stem circumference increased by 48.80%,35.06%,22.44%,and 8.98%,respectively,meanwhile the content of chlorophyll a,b,and carotenoids increased by 48.06%,47.17%,and 77.87%,respectively,the root vitality,NR,POD,SOD,PPO,and PAL enzyme activities increased by 49.25%,65.42%,123.44%,46.89%,104.20%,and 46.89%,respectively,while the contents of MDA and H2O2 decreased by 30.43%and 55.58%,respectively.It is concluded that 1 μL/mL eugenol can improve tobacco plant growth,and effectively induce tobacco resistance to bacterial wilt,which provides a new source for novel biological pesticides to prevent and control bacterial wilt.关键词
丁香酚/烟草/青枯病/诱导抗性/酶活性Key words
eugenol/tobacco/bacterial wilt disease/inducible resistance/enzyme activity分类
植物保护学引用本文复制引用
李凌峰,常晓涵,许汝冰,许雯慧,周子豪,杨勇,向海波,黎妍妍..丁香酚诱导烟草抗青枯病的效果及促生作用[J].中国烟草科学,2025,46(1):33-39,7.基金项目
中国烟草总公司重点科技项目[110202101047(LS-07)、110202101045(LS-05)] （LS-07）
湖北省烟草公司重点科技项目(027Y2022-023) （027Y2022-023）
