中国农业科学Issue(8)：1538-1547,10.DOI:10.3864/j.issn.0578-1752.2015.08.08
玉米蚜在8个玉米品种（系）上取食行为的比较分析
Comparative Analysis of Rhopalosiphum maidis Feeding Behaviors on Eight Maize Hybrids (Inbreds)
摘要
Abstract
[Objective]The objective of this study is to clarify the probing and feeding behaviors of maize aphid (Rhopalosiphum maidis) on eight maize hybrids (inbreds), and then select some proper electrical penetration graph (EPG) parameters as the indicators to classify the resistant levels of different maize hybrids (inbreds). Finally, the research will provide suggestion for the classification of maize’s resistant levels. [Method] The feeding behaviors of R. maidis on Xundan 20, Zhengdan 958, Liangyu 88, Xianyu 335, Han 21, 87-1, Pugai 340-1-1 and Qi 319 were observed, respectively, by using EPG technique and then compared and analyzed. The resistant levels of 8 maize hybrids (inbreds) were classified by using various EPG parameters, and the results were compared with the consequence which obtained in the maize field previously. Then the suitable EPG parameters were suggested to be used as parameters for screening the resistant maize hybrids (inbreds). [Result] The main EPG waveforms of R. maidis on maize hybrids (inbreds) were Np, C, Pd, E1, E2 and F, and the waveforms Np, E1, E2 and F were related with the maize’s resistant level. Before reaching the phloem, the total time and mean time of waveforms Np and F of R. maidis probing on Xundan 20, Zhengdan 958 and Liangyu 88 were significantly longer than those on other maize hybrids (inbreds). After reaching the phloem, the durable time of waveform E1 of R. maidis on Xundan 20 and Zhengdan 958 were longer, although the stylets of the aphids reached the phloem later. Meanwhile, the total time and durable time of E2 on Qi 319 and Han 21 were much longer when compared with other maize hybrids (inbreds), and they were significantly higher than Liangyu 88. The experimental 8 maize hybrids (inbreds) were categorized into three groups by cluster analysis according to the mean durable time of waveform Np, C, Pd, F and E, and the resistant levels were 1st classification (Xundan 20, Zhengdan 958 and Liangyu 88)>3rd classification (Pugai 340-1-1, Han 21 and 87-1)>2nd classification (Xianyu 335 and Qi 319). [Conclusion] The probing and feeding behaviors of R. maidis on 8 maize hybrids (inbreds) were different. There are some resistant factors in the leaf surface and phloem of these two high resistant maize hybrids Xundan 20 and Zhengdan 958. The resistant levels of all experimental maize hybrids (inbreds) obtained according to the mean durable time of waveform E and Np were approximately consistent with the resistant results of different maize hybrids (inbreds) to the maize leaf aphid obtained by the author’s laboratory in the maize field previously.关键词
玉米蚜/玉米/取食行为/刺吸电位技术/抗性机制Key words
Rhopalosiphum maidis/maize/feeding behavior/electrical penetration graph (EPG)/resistance mechanism引用本文复制引用
赵曼,田体伟,李为争,罗梅浩,郭线茹,闫凤鸣..玉米蚜在8个玉米品种（系）上取食行为的比较分析[J].中国农业科学,2015,(8):1538-1547,10.基金项目
国家转基因生物新品种培育科技重大专项（2009ZX08012-007B）、河南省现代农业产业技术体系 （）
