L-phenylalanine in potato onion (Allium cepa var. aggregatum G. Don) root exudates mediates neighbor detection and trigger physio-morphological root responses of tomato
文献类型： 外文期刊
作者： Yu, Hongjie 1 ; Gao, Danmei 2 ; Rahman, Muhammad Khashi U. 2 ; Chen, Shaocan 2 ; Wu, Fengzhi 2 ;
作者机构： 1.Fujian Acad Agr Sci, Inst Agr Econ & Sci Informat, Fuzhou, Peoples R China
2.Northeast Agr Univ, Coll Hort & Landscape Architecture, Harbin, Peoples R China
3.Northeast Agr Univ, Key Lab Cold Area Vegetable Biol, Harbin, Peoples R China
4.Univ Salamanca, Dept Microbiol & Genet, Salamanca, Spain
关键词： interspecific interaction; root exudates; chemical cue; root gravitation; tomato
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）
ISSN： 1664-462X
年卷期： 2023 年 14 卷
页码：
收录情况： SCI
摘要： InteractionDespite numerous recent insights into neighbor detection and belowground plant communication mediated by root exudates, less is known about the specificity and nature of substances within root exudates and the mechanism by which they may act belowground in root-root interactions. MethodsHere, we used a coculture experiment to study the root length density (RLD) of tomato (Solanum lycopersicum L.) grown with potato onion (Allium cepa var. aggregatum G. Don) cultivars with growth-promoting (S-potato onion) or no growth-promoting (N-potato onion) effects. Results and DiscussionTomato plants grown with growth-promoting potato onion or its root exudates increased root distribution and length density oppositely and grew their roots away as compared to when grown with potato onion of no growth-promoting potential, its root exudates, and control (tomato monoculture/distilled water treatment). Root exudates profiling of two potato onion cultivars by UPLC-Q-TOF/MS showed that L-phenylalanine was only found in root exudates of S-potato onion. The role of L-phenylalanine was further confirmed in a box experiment in which it altered tomato root distribution and forced the roots grow away. In vitro trial revealed that tomato seedlings root exposed to L-phenylalanine changed the auxin distribution, decreased the concentration of amyloplasts in columella cells of roots, and changed the root deviation angle to grow away from the addition side. These results suggest that L-phenylalanine in S-potato onion root exudates may act as an "active compound" and trigger physio-morphological changes in neighboring tomato roots.
- 相关文献
作者其他论文 更多>>
-
Genesis, Evolution and Prevalence of H5N6 Avian Influenza Viruses in China
作者：Bi, Yuhai;Zou, Rongrong;Liu, Yingxia;Gao, George Fu;Bi, Yuhai;Chen, Quanjiao;Wang, Qianli;Chen, Jianjun;Wu, Jun;Zhao, Lihua;Li, Mingxin;Liu, Di;Gao, George Fu;Bi, Yuhai;Wang, Qianli;Wong, Gary;Wu, Jun;Liu, Di;Gao, George Fu;Chen, Quanjiao;Chen, Jianjun;Zhao, Lihua;Li, Mingxin;Jin, Tao;Xu, Xun;Quan, Chuansong;Liu, Jun;Gao, George Fu;Yin, Renfu;Ding, Zhuang;Xu, Wen;Li, Hong;Lu, Lin;Wang, Huijun;Tian, Kegong;Fu, Guanghua;Huang, Yu;Shestopalov, Alexander;Li, Shoujun;Xu, Bing;Yu, Hongjie;Luo, Tingrong;Shi, Weifeng;Liu, Di;Luo, Yang;Gao, George Fu
关键词：
