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Permanent link (DOI): https://doi.org/10.7939/R3BC3T996

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Microbial-type terpene synthase genes occur widely in nonseed land plants, but not in seed plants University of Alberta

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Author or creator
Jia, Qidong
Li, Guanglin
Köllner, Tobias G
Fu, Jianyu
Chen, Xinlu
Xiong, Wangdan
Crandall-Stotler, Barbara J
Bowman, John L
Weston, David J
Zhang, Yong
Chen, Li
Xie, Yinlong
Li, Fay-Wei
Rothfels, Carl J
Larsson, Anders
Graham, Sean W
Stevenson, Dennis W
Wong, Gane Ka-Shu
Gershenzon, Jonathan
Chen, Feng
Additional contributors
Subject/Keyword
Microbial-type
terpene synthase genes
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
The vast abundance of terpene natural products in nature is due to enzymes known as terpene synthases (TPSs) that convert acyclic prenyl diphosphate precursors into a multitude of cyclic and acyclic carbon skeletons. Yet the evolution of TPSs is not well understood at higher levels of classification. Microbial TPSs from bacteria and fungi are only distantly related to typical plant TPSs, whereas genes similar to microbial TPS genes have been recently identified in the lycophyte Selaginella moellendorffii. The goal of this study was to investigate the distribution, evolution, and biochemical functions of microbial terpene synthase-like (MTPSL) genes in other plants. By analyzing the transcriptomes of 1,103 plant species ranging from green algae to flowering plants, putative MTPSL genes were identified predominantly from nonseed plants, including liverworts, mosses, hornworts, lycophytes, and monilophytes. Directed searching for MTPSL genes in the sequenced genomes of a wide range of seed plants confirmed their general absence in this group. Among themselves, MTPSL proteins from nonseed plants form four major groups, with two of these more closely related to bacterial TPSs and the other two to fungal TPSs. Two of the four groups contain a canonical aspartate-rich “DDxxD” motif. The third group has a “DDxxxD” motif, and the fourth group has only the first two “DD” conserved in this motif. Upon heterologous expression, representative members from each of the four groups displayed diverse catalytic functions as monoterpene and sesquiterpene synthases, suggesting these are important for terpene formation in nonseed plants.
Date created
2016/10/25
DOI
doi:10.7939/R3BC3T996
License information
Attribution 4.0 International
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