Selection in monoculture vs. mixture alters plant metabolic fingerprints

作     者：Debra Zuppinger-Dingley Dan F.B.Flynn Helmut Brandl Bernhard Schmid 

作者机构：Institute of Evolutionary Biology and Environmental StudiesUniversity of ZurichWinterthurerstrasse 190CH-8057 ZurichSwitzerland The Arnold Arboretum of Harvard University1300 Centre StreetBostonMA 02131USA 

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

年 卷 期：2015年第8卷第5期

页      面：549-557页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：Swiss National Science Foundation(130720 to B.S.) 

主　　题：biodiversity plant evolution selection FTIr spectroscopy metabolic fingerprint 

摘      要：Aims In grassland biodiversity experiments,positive biodiversity effects on primary productivity increase over *** research has shown that differential selection in monoculture and mixed-species communities leads to the rapid emergence of monoculture and mix-ture types,adapted to their own biotic *** used eight plant species selected for 8 years in such a biodiversity experiment to test if monoculture and mixture types differed in metabolic pro-files using infrared *** Fourier transform infrared spectroscopy(FTIr)was used to assess metabolic fingerprints of leaf samples of 10 individuals of each species from either monocultures or *** FTIr spectra were analyzed using multivariate procedures to assess(i)whether indi-viduals within species could be correctly assigned to monoculture or mixture history based on the spectra alone and(ii)which parts of the spectra drive the group assignment,*** metabolic groups were subject to differential selection in monocultures *** Findings Plant individuals within each of the eight species could be classified as either from monoculture or mixture selection history based on their FTIr *** metabolic groups were differentially selected in the different species;some of them may be related to defense of patho-gens accumulating more strongly in monocultures than in *** rapid selection of the monoculture and mixture types within the eight study species could have been due to a sorting-out process based on large initial genetic or epigenetic variation within the species.