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A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
Functional and evolutionary relationships between terpene synthases from Australian Myrtaceae
Andras Keszei1, Curt L Brubaker, Richard Carter
1Research School of Biology, Australian National University, Canberra, Australia. andras.keszei@anu.edu.au
Phytochemistry
|April 20, 2010
Summary
Researchers explored terpene synthase genes in the Myrtaceae family, revealing functional clades linked to plant oil composition. This study characterizes key enzymes, advancing our understanding of plant biochemistry.
Area of Science:
- Biochemistry
- Plant Science
- Molecular Biology
Background:
- The Myrtaceae family is rich in essential oils but lacks detailed biochemical studies on terpene synthesis.
- Terpene synthases (TPS) are crucial enzymes in plant secondary metabolism, responsible for diverse terpene compound production.
Purpose of the Study:
- To investigate the diversity and function of terpene synthase genes within the Myrtaceae family.
- To correlate phylogenetic relationships of TPS genes with leaf oil composition.
- To provide the first functional characterization of TPS enzymes from Myrtaceae.
Main Methods:
- Sequencing of 70 unique partial terpene synthase transcripts and eight full-length cDNA clones from 21 Myrtaceae species.
- Phylogenetic analysis of TPS genes.
- Gas chromatography-mass spectrometry (GC-MS) for leaf oil composition analysis.
- In vitro functional characterization of selected TPS enzymes.
Main Results:
- Identification of 70 unique TPS transcripts and eight full-length cDNA clones across 21 Myrtaceae species.
- Phylogenetic analysis revealed distinct clades of TPS genes, correlating with specific leaf oil compositions.
- Functional characterization confirmed a 1,8-cineole synthase from Eucalyptus sideroxylon and a caryophyllene synthase from Eucalyptus dives, supporting the phylogenetic-functional correlation.
Conclusions:
- Phylogenetic analysis of terpene synthases provides a framework for understanding biochemical diversity in Myrtaceae.
- The study establishes a link between TPS gene evolution, function, and the chemical profiles of essential oils in this plant family.
- This research lays the groundwork for future studies on terpene biosynthesis and its ecological roles in Myrtaceae.
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