小麦抗条锈病近等基因系感染条锈病后丁布含量变化

应用生态学报

小麦抗条锈病近等基因系感染条锈病后丁布含量变化

徐国锋^1,2;郑永权¹;董丰收¹;徐世昌¹;姚建仁¹

¹中国农业科学院植物保护研究所农业部农药化学与应用技术重点开放实验室，北京 100094； ²沈阳农业大学植物保护学院，沈阳 110161

收稿日期:2006-03-01 修回日期:2006-07-03 出版日期:2006-09-18 发布日期:2006-09-18

Changes of DIMBOA contents in resistant and susceptible wheat near-isolines infected by Puccinia striiformis f.sp. tritici

XU Guofeng^1,2;ZHENG Yongquan¹; DONG Fengshou¹;XU Shichang¹;YAO Jianren¹

¹Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100094, China;²Shenyang Agricultural University, Shenyang 110161, China

Received:2006-03-01 Revised:2006-07-03 Online:2006-09-18 Published:2006-09-18

摘要/Abstract

摘要： 选用2套遗传背景不同的抗条锈病近等基因系作为供试寄主材料，研究了不同抗条锈病近等基因系丁布的含量及其在感病过程中丁布含量的动态变化.结果表明，在未受病菌侵染情况下，2套分别含有Yr2、Yr9和YrSpP基因的近等基因系（抗病系）与其轮回亲本Taichung 29、铭贤169(感病系)间丁布含量没有显著差异（P＞0.05）.接种条锈病菌后，感病系在病菌侵染初期丁布含量下降，而抗病系在病菌侵染初期丁布含量迅速大幅度上升.感染条锈病最终导致感病植株丁布含量比未接种的植株明显减少, 感病系的减少幅度明显高于抗病系.在整个病程中，抗病系丁布的含量始终高于感病系，表明接种条件下小麦植株体内丁布含量变化与小麦抗条锈近等基因系的抗性有关.

关键词: 林分, 林冠特征, 截留能力

Abstract: With two sets of wheat near-isolines having different genetic background as test materials, this paper studied the dynamics of their DIMBOA (2,4-dihydroxy7-methoxy-1,4-benzoxazin-3-one) contents during Puccinia striiformis f. sp. tritici infection. It was revealed that in un-inoculated plants, no significant difference was observed in DIMBOA contents among various resistant and susceptible inbred lines within the same set. But, at the initia1 stage of infection, the DIMBOA contents in all resistant isolines displayed a quicker and greater increase, resulting in a significantly higher content of DIMBOA in resistant isolines than in susceptible one throughout the period of disease development. The infection ultimately led to a decline of DIMBOA contents in all infected plants, but the decrement was significantly less in resistant lines than in susceptible one. It could be concluded that DIMBOA was associated with the monogenic resistance to Puccinia striiformis f. sp. tritici in wheat. The study of DIMBOA dynamics in plants suffered from diseases and pests would be usefu1 for understanding the mechanism of resistance, and the screening and breeding of crop varieties with multiple-resistance.

Key words: Stands, Characteristics of forest crown, Interception capacity

徐国锋^1,2;郑永权¹;董丰收¹;徐世昌¹;姚建仁¹. 小麦抗条锈病近等基因系感染条锈病后丁布含量变化[J]. 应用生态学报.

XU Guofeng^1,2;ZHENG Yongquan¹; DONG Fengshou¹;XU Shichang¹;YAO Jianren¹. Changes of DIMBOA contents in resistant and susceptible wheat near-isolines infected by Puccinia striiformis f.sp. tritici[J]. Chinese Journal of Applied Ecology.

[1]	王可欣, 梅雪松, 董灵波. 大兴安岭兴安落叶松次生林不同发育阶段的林分结构复杂性评价 [J]. 应用生态学报, 2026, 37(5): 1431-1438.
[2]	李志超, 梅雪松, 董灵波. 基于广义加性混合模型的长白落叶松人工林树高-胸径模型 [J]. 应用生态学报, 2026, 37(3): 731-740.
[3]	王云霓, 曹恭祥, 徐丽宏, 吴秀花, 阿丽日苏, 黄卫丽, 郭烨. 疏伐强度对华北落叶松人工林自然更新的影响 [J]. 应用生态学报, 2026, 37(1): 15-23.
[4]	刘瑞, 赵藤彦, 马淑敏, 唐洁, 凌喜乐, 梁文俊, 魏曦. 不同林分密度刺槐人工林土壤团聚体稳定性和养分含量特征 [J]. 应用生态学报, 2026, 37(1): 73-81.
[5]	尚晓妍, 张晓, 温烁, 韩辉, 张日升, 包常亮, 徐创军, 时忠杰. 科尔沁沙地不同密度樟子松人工林年内径向生长及其影响因素 [J]. 应用生态学报, 2025, 36(9): 2719-2728.
[6]	张薇, 陈冠谋, 董灵波. 长白落叶松人工林单木最大冠幅模型及应用 [J]. 应用生态学报, 2025, 36(8): 2270-2278.
[7]	刘大源, 孟董悦, 于晨一, 李俊杰, 关庆伟. 麻栎纯林及混交林土壤团聚体磷组分特征及其影响因素 [J]. 应用生态学报, 2025, 36(8): 2344-2352.
[8]	黄羡, 余新晓, 贾国栋, 常晓敏, 孙立博. 林分密度对小叶杨人工林林下植被和土壤性质的影响 [J]. 应用生态学报, 2025, 36(4): 1035-1042.
[9]	朱景康, 唐洁, 刘瑞, 凌喜乐, 常晨隆, 梁文俊, 魏曦. 蔡家川流域不同密度刺槐林下灌草多样性特征及其影响因子 [J]. 应用生态学报, 2025, 36(2): 452-460.
[10]	张子怡, 彭道黎, 陈铭捷. 不同年龄阶段华北落叶松人工林生产力对林分密度的响应 [J]. 应用生态学报, 2025, 36(10): 3017-3025.
[11]	郭艳杰, 毕华兴, 赵丹阳, 刘泽晖, 林丹丹, 韩金丹, 黄浩博. 不同密度油松林地土壤水碳分布特征及其耦合关系 [J]. 应用生态学报, 2025, 36(1): 50-58.
[12]	李金凤, 王晖, 尤业明, 王健, 童秀丽, 胡佳佳, 明安刚, 陈琳, 刘世荣. 南亚热带人工林树种配置对根际土壤生物有效磷的影响 [J]. 应用生态学报, 2024, 35(6): 1492-1500.
[13]	张煜林, 刘玲娟, 刘胜龙, 方万力, 骆珍莎, 洪宣生, 成向荣. 不同密度杉木萌生林自然恢复初期群落结构对生态系统碳密度的影响 [J]. 应用生态学报, 2024, 35(2): 289-297.
[14]	王剑武, 徐森, 季碧勇, 杜群. 地形和林分空间结构对浙江省天然阔叶混交林主要先锋树种胸径生长的影响 [J]. 应用生态学报, 2024, 35(2): 298-306.
[15]	梅雪松, 陈冠谋, 董灵波. 兴安落叶松天然林不同碳库碳汇变化驱动因素的差异性 [J]. 应用生态学报, 2024, 35(10): 2639-2647.