当前位置:首页>农业>讲座预告| 北京大学未来农业大讲堂第七十讲——重塑植物NLR免疫受体赋予植物新的病毒抗性

讲座预告| 北京大学未来农业大讲堂第七十讲——重塑植物NLR免疫受体赋予植物新的病毒抗性

  • 2026-03-28 19:04:06
讲座预告| 北京大学未来农业大讲堂第七十讲——重塑植物NLR免疫受体赋予植物新的病毒抗性
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题   目:重塑植物NLR免疫受体赋予植物新的病毒抗性

报告人:刘玉乐 教授

主持人:何跃辉 教授

时   间:2026年03月26日 星期四 10:00 -12:00

线下地点:北京大学王克桢楼 454 教室

线上直播:Wiley科研服务平台

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植物NLR免疫受体是介导效应子触发免疫(ETI)的核心因子。然而,天然NLR通常识别谱狭窄,且易被病原快速进化突破,限制了其在作物抗病育种中的持久应用。近年来,通过蛋白工程手段重塑NLR受体功能,正成为获得新型、广谱且持久抗性的关键策略。本报告将介绍我们实验室在重塑植物NLR免疫受体以赋予植物新型病毒抗性方面的研究进展。首先,在针对番茄褐色皱果病毒(ToBRFV)的研究中,通过对经典抗病基因Tm-2²进行人工进化,成功获得可同时抵御ToBRFV及烟草花叶病毒的广谱抗性变体,为抗病毒育种提供了可扩展的新路径。其次,我们提出了一种全新的NLR重塑策略:在自激活型NLR的N端融合可被病原蛋白酶特异切割的抑制结构,从而构建“病原蛋白酶触发型免疫开关”。当病原侵染时,其编码的蛋白酶切割该抑制模块,释放活性NLR,迅速诱导免疫反应。该策略使单一工程化NLR对多种马铃薯Y病毒属病毒产生广谱且完全抗性,并有望拓展为针对病毒、细菌、真菌及线虫等多类病原的通用防控策略。

报告人

刘玉乐,清华大学生命科学学院教授,国家杰出青年基金获得者。长期从事植物病毒和细胞自噬相关研究,在植物抗病毒免疫、病毒病理、病毒载体、细胞自噬方面做出了有国际影响的工作。发表SCI论文约130篇,以通讯或第一作者在Nature(2篇)、Cell(2篇)等重要学术刊物发表或接收发表论文70篇,在Web of Science核心合集中被引用超过2万次,自2014年每年均入选爱思唯尔(Elsevier)发布的中国高被引学者榜单,主编教材《生物化学》(2023年),是出任国际重要病毒学杂志Journal of Virology编辑的首位中国大陆本土科学家。

讲座组织:北京大学现代农学院

主持人:何跃辉 教授

编  辑 | 陈紫月

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  1. CONNECT:[ UseTime:0.000905s ] mysql:host=127.0.0.1;port=3306;dbname=h_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001358s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000627s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000592s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001225s ]
  6. SELECT * FROM `set` [ RunTime:0.005430s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001417s ]
  8. SELECT * FROM `article` WHERE `id` = 494886 LIMIT 1 [ RunTime:0.002615s ]
  9. UPDATE `article` SET `lasttime` = 1774862304 WHERE `id` = 494886 [ RunTime:0.006807s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.001403s ]
  11. SELECT * FROM `article` WHERE `id` < 494886 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002583s ]
  12. SELECT * FROM `article` WHERE `id` > 494886 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.005848s ]
  13. SELECT * FROM `article` WHERE `id` < 494886 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.013763s ]
  14. SELECT * FROM `article` WHERE `id` < 494886 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.036824s ]
  15. SELECT * FROM `article` WHERE `id` < 494886 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.041938s ]
0.283234s