摘要
0 引言樱花(Prunus serrulata),隶属于蔷薇科(Rosaceae)樱亚属,种类丰富且具有较高的观赏价值,是我国重要的观花树种[1]。近年来,随着我国樱花栽培面积大幅增加,其上的真菌病害也愈发严重,极大影响樱花的观赏价值。然而国内关于樱花真菌病害报道较少,目前已报道的有危害叶片的褐斑病和危害主干中部以下及根部的根癌病[2-3]。
In recent years,the planting area of Prunus serrulata in Henan Province has been increasing,and the disease problem is becoming more and more serious.A canker disease that infects the branches of P.serrulata has been observed in many areas;it causes brown canker tissue on the shoots,twigs and kills the branches.To clarify the pathogen causing shoot canker of P.serrulata in Henan Province,isolates were obtained from diseased shoots and identified based on the morphological and molecular biological methods.In this study,a to-tal of 21 strains with the same morphological characteristics were obtained and Koch's postulates was verified.According to its morphological and molecular biological characteristics,the pathogen causing shoot canker of P.serrulata in Henan Province was finally identified as Diaporthe eres.This is the first report of D.eres responsible for P.serrulata shoot canker.The optimum growth temperature of D.eres was 25 C,and the optimum pH was 6,the optimum carbon source was sucrose,the optimum nitrogen source was yeast powder.
作者
高文凯
秦士娇
谢雨絮
曹家源
侯康乐
徐义力
马庆周
徐超
郭雅双
张猛
GAO Wenkai;QIN Shijiao;XIE Yuxu;CAO Jiayuan;HOU Kangle;XU yili;MA Qingzhou;XU Chao;GUO Yashuang;ZHANG Meng(College of Plant Protection,Henan Agricultural University,Zhengzhou 450046,China;Agricultural Technology Promotion Station,Qilihe District,Lanzhou 730050,China)
出处
《植物病理学报》
CSCD
北大核心
2024年第6期1263-1267,共5页
Acta Phytopathologica Sinica
基金
河南省科技攻关(222102110259)
河南农业大学青年英才项目(30500960)。
