文献类型：期刊文献

英文题名：Metabolomics reveals constitutive metabolites that contribute resistance to fall webworm (Hyphantria cunea) in Populus deltoides

作者：Wang, Lijuan[1,2] Qu, Liangjian[3] Hu, Jianjun[1,2] Zhang, Liwei[4] Tang, Fang[1,2] Lu, Mengzhu[1,2]

第一作者：王丽娟;Wang, Lijuan

通信作者：Lu, MZ[1]

机构：[1]Chinese Acad Forestry, State Forestry Adm, Res Inst Forestry, Key Lab Tree Breeding & Cultivat,State Key Lab Tr, Beijing 100091, Peoples R China;[2]Nanjing Forestry Univ, Coinnovat Ctr Sustainable Forestry Soothern China, Nanjing 210037, Jiangsu, Peoples R China;[3]Chinese Acad Forestry, State Forestry Adm, Res Inst Forest Ecol Environm & Protect, Key Lab Forest Protect, Beijing 100091, Peoples R China;[4]Nanjing Forestry Univ, Key Lab Forest Genet & Biotechnol, Minist Educ, Nanjing 210037, Jiangsu, Peoples R China

年份：2017

卷号：136

起止页码：31-40

外文期刊名：ENVIRONMENTAL AND EXPERIMENTAL BOTANY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000395839300004)】；

基金：We thank Wei Fan for her help in GC-MS quantification of resistance/susceptibility-related metabolites. This work was supported by the Key Forestry Public Welfare Project (201304102) and the Basic Research Fund of RIF (RIF2012-07).

语种：英文

外文关键词：Woody plants; Poplar; Insect; Hyphantria cunea; Resistance; Plant metabolomics

摘要：Constitutive chemical defenses play important roles in protecting trees against insects. Studying the constitutive chemical resistance of trees to insect would thus help control the pests and minimize the associated ecological and economic losses. Poplar is an ecologically and economically important tree species but has been greatly damaged by fall webworm (Hyphantria cunea) in China. Here we investigated H. cunea resistance in 7 poplar cultivars commonly planted in China by applying bioassays, and analyzed metabolic profiles of H. cunea -resistant and -susceptible cultivars. Substantial variation in chemical profiles between resistant and susceptible genotypes was detected. Ninety-two distinguishing metabolites were identified. Correlation analysis indicated that hydroxycinnamates, benzenoids and their derivatives significantly positively correlated with resistance against H. cunea, whereas sucrose, glutamic acid and myo-inositol showed negative correlations. Bioassays of H. cunea given an artificial diet supplemented with these compounds confirmed their effects but indicated that they each have different roles. Metabolite enrichment and gene expression analysis showed that phenylpropanoid biosynthesis in poplar is important for constitutive resistance against H. cunea. Induced experiment found that some of the constitutive resistance-related metabolites were induced by H. cunea indicating that these metabolites also play a role in induced resistance. This study provides further insight into the molecular mechanisms behind H. cunea resistance in poplar and suggests candidate metabolites that may serve as biomarlcers for breeding of resistant poplar cultivars. (C) 2017 Elsevier B.V. All rights reserved.