5种蔷薇科果树对梨火疫病的抗性  

Resistance of 5 Rosaceae fruit trees to Pear Fire Blight

作　　者：段红雁 李紫英 王兰[1] 李竞雄 陈伟[1] DUAN Hongyan;LI Ziying;WANG Lan;LI Jingxiong;CHEN Wei(Tarim University,Key Laboratory of Southern Xinjiang Agricultural Pest Management Corps,Alar Crop Pest Science Observation and Experiment Station of Ministry of Agriculture,State Local Joint Engineering Laboratory of High Efficiency and High Quality Cultivation and Deep Processing Technology of Characteristic Fruit Trees in Southern Xinjiang,Alar 843300)

机构地区：[1]塔里木大学,南疆农业有害生物综合治理兵团重点实验室,农业农村部阿拉尔作物有害生物科学观测实验站,南疆特色果树高效优质栽培与深加工技术国家地方联合工程实验室,新疆阿拉尔843300

出　　处：《中国果树》2022年第2期65-67,74,共4页China Fruits

基　　金：国家级大创项目(201910757020);南疆重点产业创新发展支撑计划(2020DB006);兵团科技攻关项目(2019AB023)。

摘　　要：以新疆常见的5种蔷薇科果树为试材,采用离体枝条接种法和梨幼果针刺接种法,比较5种果树对梨火疫病的抗性。结果表明:5种蔷薇科果树在枝条和果实的抗性表现一致,最好的是海棠,为高抗品种;其次为山楂和苹果,为中抗品种;最差的是杜梨和库尔勒香梨,为低抗品种。不同种蔷薇科植物在离体枝条与幼果上对Erwinia amylovora菌株的抗病性鉴定,对今后深入揭示蔷薇科植物抗病分子机制有重要意义。The resistance of five common Rosaceae fruit trees were compared.The results showed that the resistance of the five species of Rosaceae fruit trees was consistent in the branch and fruit resistance.The best was Malus,which was a high-resistant variety;the second was Crataegus pinnatifida Bge and Malus pumila Mill,which were medium-resistant varieties;and the worst was Pyrus betulifolia Bunge and Pyrus spp.low-resistant varieties.Identification of resistance to Erwinia amylovora on in vitro branches and young fruits of different rosaceae species is of great significance to further reveal the molecular mechanism of resistance in rosaceae plants.

关 键 词：蔷薇科果树 梨火疫病 抗病鉴定 

分 类 号：S661[农业科学—果树学]