| 王奥霖1, 2, 刘 岩3, 李晓文4, 李佩玲5, 葛宏蔓3, 韩方强4, 范洁茹1, 刘 伟1*, 胡小平2, 周益林1*.基于后向轨迹分析的辽东半岛南端冬小麦条锈病菌源初探[J].植物保护,2025,51(4):119-130. |
| 基于后向轨迹分析的辽东半岛南端冬小麦条锈病菌源初探 |
| Identification of the source of wheat stripe rust in the southern tip of Liaodong Peninsula based on backward trajectory analysis |
| 投稿时间：2024-10-14 修订日期：2024-11-05 |
| DOI：10.16688/j.zwbh.2024547 |
| 中文关键词: 小麦条锈病 东北冬小麦 病害流行调查 后向轨迹模拟 菌源来源 |
| 英文关键词:wheat stripe rust winter wheat in Northeast China epidemiological survey backward trajectory analysis inoculum source |
| 基金项目:国家重点研发计划（2021YFD1401000） |
| 作者 | 单位 | E-mail | | 王奥霖1, 2, 刘 岩3, 李晓文4, 李佩玲5, 葛宏蔓3, 韩方强4, 范洁茹1, 刘 伟1*, 胡小平2, 周益林1* | 1. 中国农业科学院植物保护研究所, 植物病虫害综合治理全国重点实验室, 北京 100193
2. 西北农林科技大学植物保护学院, 作物抗逆与高效生产全国重点实验室, 杨凌 712100
3. 大连市旅顺口区农业农村局, 大连 116000
4. 大连市旅顺口区气象局, 大连 116000
5. 山东省农业技术推广中心, 济南 250010 | 刘伟wliusdau@163.com；周益林ylzhou@ippcaas.cn |
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| 中文摘要: |
| 由Puccinia striiformis f.sp. tritici (Pst)引起的小麦条锈病是我国小麦生产上重要的病害之一, 严重威胁我国小麦的安全生产。2024年6月4日在对辽宁省大连市旅顺口区冬小麦开展田间病害调查时发现, 所有调查田块均有不同程度的小麦条锈病发生。本研究利用HYSPLIT模型, 结合田间病害调查数据, 在病菌孢子最可能到达的时间窗内模拟后向气流轨迹, 结果显示, 2024年西泥河村是入侵旅顺口区首波锈菌孢子最可能的菌源接收地, 河北和山东两省的环渤海湾地区冬小麦上的条锈菌是该村最有可能的菌源来源; 推测其他点位的条锈菌可能来自本地或本地菌源和外来菌源兼而有之。此外, 本研究也是我国小麦条锈菌跨海传播并造成病害异地发生和流行的首次报道, 为进一步明确旅顺口区上游菌源地和当地小麦条锈病的发生流行规律奠定基础。 |
| 英文摘要: |
| Wheat stripe rust, caused by Puccinia striiformis f.sp. tritici (Pst), is a major disease that threatens wheat production in China. On June 4, 2024, field investigations revealed varying degrees of wheat stripe rust in all surveyed winter wheat fields in Lüshunkou district of Dalian, Liaoning province. To trace the potential source of the pathogen, we used the HYSPLIT model in combination with field survey data to simulate backward air mass trajectories during the likely inoculation period. The results showed that Xinihe village was the most probable first receiving site of urediniospores that initiated the outbreak. The likely inoculum sources were identified as stripe rust-infected winter wheat fields in the Bohai Bay regions of Hebei and Shandong provinces. Other infected sites may have been affected by local inoculum or a combination of local and external sources. Furthermore, this study represents the first report of cross-sea dispersal of wheat stripe rust in China, resulting in disease establishment and localized outbreaks in new areas. These results lay a foundation for clarifying the upstream origin of inoculum and the epidemiology of wheat stripe rust in Lüshunkou district. |
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