title: Tomato terpene synthases TPS5 and TPS39 account for a monoterpene linalool production in tomato fruits.
abstract: Recombinant tomato terpene synthases, TPS5/37/39, catalyze the formation of linalool or nerolidol in vitro. However, little is known about their actual biological activities in tomato plants, especially in their fruits. Here, when all three TPSs were induced in tomato fruits by a chemical elicitor, geraniol, a significant linalool peak was detected in fruit tissues but not in control fruits. Considering the compartments of these TPS proteins and available substrates, the linalool peak induced by geraniol might be attributed to TPS5 and TPS37, both of them putatively localized in the plastids where high levels of monoterpene substrate geranyl diphosphate exist. In addition, application of geraniol also triggered jasmonic acid (JA)-related defense genes suggesting that the inducible TPSs might be correlated with JA-signaled defense responses.
authors.affiliation: School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, People's Republic of China, caoyin@swust.edu.cn.
authors.forename: Ying
authors.initials: Y
authors.lastname: Cao
authors.forename: Shanglian
authors.initials: S
authors.lastname: Hu
authors.forename: Qilin
authors.initials: Q
authors.lastname: Dai
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Liu
mesh_terms: D000080462:Acyclic Monoterpenes; D019883:Alkyl and Aryl Transferases / Q000235:genetics / Q000378:metabolism*; D002734:Chlorophyll / Q000378:metabolism; D003517:Cyclopentanes / Q000494:pharmacology; D005453:Fluorescence; D005638:Fruit / Q000187:drug effects / Q000201:enzymology* / Q000235:genetics; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D018551:Solanum lycopersicum / Q000187:drug effects / Q000201:enzymology* / Q000235:genetics / Q000276:immunology; D039821:Monoterpenes / Q000378:metabolism*; D054883:Oxylipins / Q000494:pharmacology; D010802:Phylogeny; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D013729:Terpenes / Q000494:pharmacology; D055549:Volatile Organic Compounds / Q000032:analysis
chemical_list: D000080462:Acyclic Monoterpenes; D003517:Cyclopentanes; D039821:Monoterpenes; D054883:Oxylipins; D010940:Plant Proteins; D013729:Terpenes; D055549:Volatile Organic Compounds; D002734:Chlorophyll; C011006:jasmonic acid; C018584:linalool; D019883:Alkyl and Aryl Transferases; C108877:terpene synthase; C007836:geraniol