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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

引用本文：张勃,孙振宇,黄瑾,曹世勤,金社林,郭致杰,李培玲,李青青,王建锋,王晓杰.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.植物保护学报,2025,52(6):1363-1378

DOI：10.13802/j.cnki.zwbhxb.2025.2025020

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作者	单位	E-mail
张勃	甘肃省农业科学院植物保护研究所, 兰州 730070
孙振宇	甘肃省农业科学院植物保护研究所, 兰州 730070
黄瑾	甘肃省农业科学院植物保护研究所, 兰州 730070
曹世勤	甘肃省农业科学院植物保护研究所, 兰州 730070
金社林	甘肃省农业科学院植物保护研究所, 兰州 730070	shelin_jin@gsagr.cn
郭致杰	甘肃省农业科学院植物保护研究所, 兰州 730070
李培玲	甘肃省农业科学院榆中高寒农业试验站, 兰州 730010
李青青	甘肃省农业科学院植物保护研究所, 兰州 730070
王建锋	西北农林科技大学植物保护学院, 陕西杨凌 712100
王晓杰	西北农林科技大学植物保护学院, 陕西杨凌 712100

中文摘要:为明确甘肃省近年来小麦条锈菌Puccinia striiformis f. sp. tritici发生、分布和生理小种的变化，于2008—2023年对甘肃省中南部的临夏回族自治州、定西市、天水市和陇南市4个市（州）小麦条锈菌的越夏发病、秋苗发病、越冬和春季流行情况及生理小种变化进行调查。结果显示：2008—2023年甘肃省小麦条锈菌越夏菌源主要集中在中部海拔1 900 m以上区域，最低越夏海拔为1 550 m，秋季菌源多数在临夏回族自治州和定西市，春季流行期条锈菌主要集中在陇南市和天水市，最高越冬海拔为2 300 m。2008—2023年小麦条锈菌生理小种由水源11致病类群和Hy致病类群为主的毒性类群转变为以贵农22致病类群和Hy致病类群为主的毒性群体，曾经的优势小种CYR33被CYR34取代，当前优势小种由CYR34和CYR32组成。建议全国育种单位应重视培育兼抗条锈菌CYR34和CYR32的小麦品种。

中文关键词:小麦条锈菌生理小种致病类群越夏菌源海拔

Dynamic distribution and physiological race variation of wheat stripe rust Puccinia striiformis f. sp. tritici in south-central Gansu Province from 2008 to 2023

Author Name	Affiliation	E-mail
Zhang Bo	Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu Province, China
Sun Zhenyu	Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu Province, China
Huang Jin	Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu Province, China
Cao Shiqin	Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu Province, China
Jin Shelin	Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu Province, China	shelin_jin@gsagr.cn
Guo Zhijie	Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu Province, China
Li Peiling	Yuzhong Alpine Agricultural Experiment Station, Gansu Academy of Agricultural Sciences, Lanzhou 730010, Gansu Province, China
Li Qingqing	Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu Province, China
Wang Jianfeng	College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi Provine, China
Wang Xiaojie	College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi Provine, China

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 conducted 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 prioritize resistance against CYR34 and CYR32.

keywords:Puccinia striiformis f. sp. tritici race pathogenic group summer survival inoculum altitude

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