Tallow tree allocates contrasting secondary chemicals in response to varying environments along elevational gradients

作     者：Li Xiao Jialiang Zhang Wei Huang Juli Carrillo Evan Siemann Jianqing Ding Li Xiao;Jialiang Zhang;Wei Huang;Juli Carrillo;Evan Siemann;Jianqing Ding

作者机构：CAS Key Laboratory of Aquatic Botany and Watershed EcologyWuhan Botanical GardenChinese Academy of SciencesWuhanHubei 430074China University of Chinese Academy of SciencesBeijing 100049China Core Botanical GardenChinese Academy of SciencesWuhanHubei 430074China Faculty of Land and Food SystemsCentre for Sustainable Food SystemsBiodiversity Research CentreUniversity of British ColumbiaVancouverBC V6T 1Z4Canada Biosciences DepartmentRice UniversityHoustonTX 77005USA State Key Laboratory of Crop Stress Adaptation and ImprovementSchool of Life SciencesHenan UniversityKaifengHenan 475004China 

出 版 物：《Journal of Plant Ecology》 (植物生态学报（英文版）)

年 卷 期：2020年第13卷第3期

页      面：295-303页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 

基　　金：supported by the National Key Research and Development Program(2017YFC1200100 to J.D.) the National Natural Science Foundation of China(31770414 to J.D.,31470447 and 31822007 to W.H.) 

主　　题：herbivory climate elevation defence strategies secondary metabolites Chinese tallow tree 

摘      要：Aims Understanding how tree species regulate multiple types of secondary chemicals along elevational gradients is critical for elucidating the physiological and ecological strategies of plants in response to varying biotic and/or abiotic *** study aims to examine how Chinese tallow tree(Triadica sebifera)allocates resources to the production of different secondary chemicals in response to varying environments across elevational *** We conducted field surveys of different herbivore feeding guilds and their damage rates on Chinese tallow trees along an elevational gradient in China and measured secondary chemicals(tannins and flavonoids)in damaged and undamaged *** Findings The odds of a leaf being damaged(chewing or scarring)decreased with *** concentrations increased with elevation in undamaged leaves but decreased with elevation in damaged leaves,with quercitrin contributing most strongly to this pattern,likely as results of plant responding to changing biotic or abiotic stresses along elevational *** concentrations did not vary with elevation,so undamaged leaves had relatively lower tannin to flavonoid ratios at high elevation than at low *** study reveals variation in herbivory and contrasting trends in plant secondary metabolism along an elevation gradient and highlights the importance of simultaneously considering multiple types of secondary chemicals in plant physiological and ecological strategies.