诱抗剂BTH对滇牡丹3种主要病害的诱抗研究  

The Study of the Inducer BTH on Resistance to the Three Main Disease of Paeonia delavayi

作　　者：缪福俊[1] 安曼云 华梅[1] 陈剑[1] 王娟[1] MIAO Fu-jun AN Man- yun HUA Mei CHEN Jian WANG Juan(Key Laboratory for Conservation of Rare,Endangered ＆ Endemic Forest Plants, State Forestry Administration, Yunnan Provincial Key Laboratory of Cultivation and Exploitation of Forest Plants, Yunnan Academy of Forestry, Kunming Yunnan 650201, P. R. China Engineering College Management, Yunnan College of Business Management, Anning Yunnan 650106, P. R. China)

机构地区：[1]云南省林业科学院云南省森林植物培育与开发利用重点实验室/国家林业局云南珍稀濒特森林植物保护和繁育重点实验室,云南昆明650201 [2]云南经济管理学院工程学院,云南安宁650106

出　　处：《西部林业科学》2017年第3期116-120,共5页Journal of West China Forestry Science

基　　金：国家林业公益行业科研专项项目(201204110);云南省科技计划项目(2015IA005);云南省森林植物培育与开发利用重点实验室/国家林业局云南珍稀濒特植物保护与繁育重点实验室自主创新项目(ZZCX2016-2);云南省中青年学术技术带头人后备人才培养项目(2010CI016)资助

摘　　要：采用诱抗剂苯并噻二唑(BTH)对滇牡丹3种主要病害(牡丹红斑病Cladosporium red spot、灰霉病Grey mould和黑斑病Black spot)进行了诱抗试验,分析了发病指数、诱抗效果、生理等相关指标变化。结果表明:诱抗剂对滇牡丹3种病害诱抗效果显著,其中以红斑病的诱抗效果最佳,并确定出BTH的最佳使用浓度为100mg/L;在此浓度处理后,叶片病斑面积停止增长,边缘逐渐愈合,SAFR和MDA含量显著降低,可溶性蛋白、色素和相关酶系活力指标均显著增加,这些变化与病害的抗性变化密切相关。诱抗剂BTH对滇牡丹3种病原菌不产生毒杀作用,而是诱导植物系统获得性抗性(SAR),其作用机理有待进一步的研究。The inducer BTH was been tested to three main disease （ Cladosporium red spot, Grey mould and Black spot） of Paeonia delavayi Franch , and the infection in d ex, induced-resistance effects and related physio-logical and enzyme activity indexes were analyzed. The results show^ed that the BTH had ance effects on the three main diseases. The optimal inducer effect was Cladosporium red spot and the best concen-tration was 100mg/ L. The indexes of SAFR and MDA were dramatic d e c l in e, but the indexes of soluble p rotein, Pigment and related enzymes activity were obviously higher than those control processing, and these changeswereclosely related with resistance induction of the main diseases. BTH did not have toxic genic fungi, but lead to P . delavayi produce systemic acquired resistance （ SAR） effectively,whmechanism need to be further studied.

关 键 词：滇牡丹 诱抗剂 红斑病 灰霉病 黑斑病 诱抗效果 系统获得性抗性 

分 类 号：S763[农业科学—森林保护学]