摘要
由豇豆单胞锈(Uromyces vignae)引起的小豆锈病是我国小豆生产中的重要病害之一[1,2],在中国华北及东北地区发生严重,可造成严重的产量损失[3]。当前小豆锈病的防治主要依赖化学药剂,但长期使用化学药剂存在残留、破坏生态等弊端。因此寻找绿色可持续的防控措施越来越受到人们的关注。利用外源诱导剂诱导植物抗性是一种潜在的病害防控措施[4]。
Four common inducers,salicylic acid(SA),1-aminocyclopropane-1-carboxylic acid(ACC),benzothiadiazole(BTH)and methyl jasmonate(MeJA),were selected to evaluate the effects of inducers on the resistance of adzuki bean to rust by investigating urediospores germination and the adzuki bean resistance to Uromyces vignae.The results showed that four inducers had no effects on the urediospores germination.However,they can significantly induce adzuki bean resistance to U.vignae.Among these four inducers,0.25 mg·mL-1 ACC can significantly reduce the disease index,which was 45.06%lower than the control.Aditionally,seedlings treated with ACC exhibited a typical"triple reaction",which indicated that this induced resistance may relate with the endogenous ethylene biosynthesis in adzuki bean.Then the adzuki bean seedlings were treated with an ethylene receptor inhibitor,1-methylcyclopropene(1-MCP)alone or combined with ACC.The results showed that 1-MCP alone had no significant effect on the growth and rust resistance of adzuki bean.However,1-MCP could eliminate the"triple reaction"and did not affect the induced resistance caused by ACC when it used combined with ACC.Results obtained in current study suggested that ACC can significantly induce the resistance of adzuki bean to the rust.Moreover,we speculate that ACC-induced rust resistance of adzuki bean may not depend on ethylene signaling pathway.
作者
康静
柯希望
申永强
殷丽华
徐晓丹
左豫虎
KANG Jing;KE Xi-wang;SHEN Yong-qiang;YIN Li-hua;XU Xiao-dan;ZUO Yu-hu(Laboratory of Plant Immunity,Heilongjiang Bayi Agricultural University,Daqing 163319,China;Seed Management Office of Qitaihe,Qitaihe 154600,China)
出处
《植物病理学报》
CAS
CSCD
北大核心
2019年第6期871-875,共5页
Acta Phytopathologica Sinica
基金
国家自然科学基金(31501629)
黑龙江省普通本科高等学校青年创新人才培养计划(UNPYSCT-2016201、UNPYSCT-2017113)
黑龙江省农垦总局科技计划(HNK135-02-10)
黑龙江省“杂粮生产与加工”优势特色学科建设项目
黑龙江八一农垦大学研究生创新项目(YJSCX2018-Y103).