植物保护学报2025，Vol.52Issue(6)：1363-1378,16.DOI:10.13802/j.cnki.zwbhxb.2025.2025020
2008-2023年甘肃省中南部小麦条锈菌动态分布与生理小种变化
Dynamic distribution and physiological race variation of wheat stripe rust Puccinia striiformis f.sp.tritici in south-central Gansu Province from 2008 to 2023
摘要
Abstract
To clarify the occurrence,distribution and physiological race changes of Puccinia striiformis f.sp.tritici(Pst)in Gansu Province in recent years,investigations on the annual disease cycle were con-ducted and physiological races of Pst monitored from 2008 to 2023.The results revealed that the summer survival inoculum of Pst was primarily concentrated in areas above 1 900 meters in Linxia and Dingxi in central Gansu,with the lowest survival altitude extending down to 1 550 meters.In autumn,the majority of inoculum sources were found in Linxia and Dingxi,while during the spring epidemic period,the disease predominantly occurred in Longnan and Tianshui,with the highest overwintering altitude reaching 2 300 meters.The physiological races of Pst in Gansu have shifted from the virulence groups dominated by Su11 and Hy46 to the pathogenic groups primarily composed of G22 and Hy.The formerly dominant physiological race,CYR33,has been replaced by CYR34,with the current dominant races comprised of CYR34 and CYR32.National wheat rust resistance breeding efforts should priori-tize resistance against CYR34 and CYR32.关键词
小麦条锈菌/生理小种/致病类群/越夏菌源/海拔Key words
Puccinia striiformis f.sp.tritici/race/pathogenic group/summer survival inoculum/altitude引用本文复制引用
张勃,王晓杰,孙振宇,黄瑾,曹世勤,金社林,郭致杰,李培玲,李青青,王建锋..2008-2023年甘肃省中南部小麦条锈菌动态分布与生理小种变化[J].植物保护学报,2025,52(6):1363-1378,16.基金项目
国家重点研发计划项目(2021YFD1401000),国家自然科学基金项目(32060596) （2021YFD1401000）
