作者
Suresh Varsani, Sajjan Grover, Shaoqun Zhou, Kyle G Koch, Pei-Cheng Huang, Michael V Kolomiets, W Paul Williams, Tiffany Heng-Moss, Gautam Sarath, Dawn S Luthe, Georg Jander, Joe Louis
发表日期
2019/4/1
期刊
Plant Physiology
卷号
179
期号
4
页码范围
1402-1415
出版商
American Society of Plant Biologists
简介
The corn leaf aphid (CLA; Rhopalosiphum maidis) is a phloem sap-sucking insect that attacks many cereal crops, including maize (Zea mays). We previously showed that the maize inbred line Mp708, which was developed by classical plant breeding, provides enhanced resistance to CLA. Here, using electrophysiological monitoring of aphid feeding behavior, we demonstrate that Mp708 provides phloem-mediated resistance to CLA. Furthermore, feeding by CLA on Mp708 plants enhanced callose deposition, a potential defense mechanism utilized by plants to limit aphid feeding and subsequent colonization. In maize, benzoxazinoids (BX) or BX-derived metabolites contribute to enhanced callose deposition by providing heightened resistance to CLA. However, BX and BX-derived metabolites were not significantly altered in CLA-infested Mp708 plants, indicating BX-independent defense against CLA …
学术搜索中的文章
S Varsani, S Grover, S Zhou, KG Koch, PC Huang… - Plant Physiology, 2019