Molecular Cloning and Characterization of a Linalool Synthase from Lemon Myrtle
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- SUGIURA Mizue
- School of Food and Nutritional Sciences, University of Shizuoka
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- ITO Sohei
- School of Food and Nutritional Sciences, University of Shizuoka
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- SAITO Yosuke
- School of Food and Nutritional Sciences, University of Shizuoka
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- NIWA Yasuo
- School of Food and Nutritional Sciences, University of Shizuoka
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- KOLTUNOW Anna M.
- CSIRO Plant Industry
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- SUGIMOTO Osamu
- School of Food and Nutritional Sciences, University of Shizuoka
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- SAKAI Hiroshi
- School of Food and Nutritional Sciences, University of Shizuoka
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Abstract
Using a homology-based PCR strategy, we identified a cDNA with sequence similarity to linalool synthase from lemon myrtle. Functional expression of the cDNA (designated BcLS) gene in Escherichia coli yielded an active enzyme capable of catalyzing the conversion of geranyl diphosphate to (−)-linalool, i.e., an acyclic monoterpene alcohol, and to lesser amounts of cyclic monoterpenes. The kinetic parameters of BcLS were similar to those of synthases producing cyclic monoterpenes. PCR analysis revealed that the BcLS gene transcript was ubiquitously expressed in lemon myrtle and was upregulated in response to jasmonic acid treatment. Although the physiological role of neryl diphosphate (NPP) dependency of BcLS remains unclear, the cyclization activity of BcLS was enhanced when NPP was used as substrate, resulting in predominant production of cyclic monoterpenes. These findings indicate that BcLS has novel specificity and kinetic parameters, but its physiological responses to stresses such as insect damage appear to be similar to known linalool synthases.
Journal
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- Bioscience, Biotechnology, and Biochemistry
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Bioscience, Biotechnology, and Biochemistry 75 (7), 1245-1248, 2011
Japan Society for Bioscience, Biotechnology, and Agrochemistry
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Details 詳細情報について
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- CRID
- 1390001206476932480
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- NII Article ID
- 10029328830
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- NII Book ID
- AA10824164
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- ISSN
- 13476947
- 09168451
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- NDL BIB ID
- 11174193
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- PubMed
- 21737936
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed