Natural variation in linalool metabolites:One genetic locus,many functions?  

作　　者：Jun He Rayko Halitschke Ian T.Baldwin Meredith C.Schuman 

机构地区：[1]National Citrus Engineering Research Center,Citrus Research Institute,Southwest University,Chongqing,400712 China [2]Department of Molecular Ecology,Max Planck Institute for Chemical Ecology,Jena,07745 Germany [3]Departments of Geography and Chemistry,University of Zürich,Zürich,8057 Switzerland

出　　处：《Journal of Integrative Plant Biology》2021年第8期1416-1421,共6页植物学报（英文版）

基　　金：This work was funded by the Max Planck Society and advanced Grant No.293926 of the European Research Council(to I.T.B.);in part supported by the Collaborative Research Centre ChemBioSys(CRC 1127)funded by the Deutsche Forschungsgemeinschaft,and the Venture&Innovation Support Program for Chongqing Overseas Returnees(7820100514).

摘　　要：The ubiquitous volatile linalool is metabolized in plants to nonvolatile derivatives.We studied Nicotiana attenuata plants which naturally vary in(S)-(+)-linalool contents,and lines engineered to produce either(R)-(-)-or(S)-(+)-linalool.Only(S)-(+)-linalool production was associated with slower growth of a generalist herbivore,and a large fraction was present as nonvolatile derivatives.We found that variation in volatile linalool and its nonvolatile glycosides mapped to the same genetic locus which harbored the biosynthetic gene,NaLIS,but that free linalool varied more in environmental responses.This study reveals how(S)-(+)-linalool and conjugates differ in their regulation and possible functions in resistance.

关 键 词：conjugated linalool Nicotiana attenuata Spodoptera littoralis 

分 类 号：Q943[生物学—植物学]