Relative expression of genes of menthol biosynthesis pathway in peppermint (Mentha piperita L.) after chitosan, gibberellic acid and methyl jasmonate treatments

Relative expression of genes of menthol biosynthesis pathway in peppermint (Mentha piperita L.)... Menthol as an important component of monoterpenes essential oil in peppermint (Mentha piperita L.) is widely applied for medical and industrial uses. In this study, the effect of exogenous applications of chitosan (200 mg/L), gibberellic acid (50 mg/L) and methyl jasmonate (300 μM) was investigated in the main genes of menthol biosynthesis pathways within a 72 h time period using qRT-PCR. Transcript levels of most genes were either unaffected or down-regulated following chitosan treatment relative to control plants. Decreasing of geranyl diphosphate synthase (GDS) and limonene synthase (LS) genes transcript in chitosan treatment could possibly be effective in reducing of limonene level. On the other hand, it seems that an increase in menthone-menthol reductase (MMR) transcription level at 72 h under these treatments had a positive role in increasing the amount of menthol in this plant. Since exogenous application of gibberellic acid (GA3) down-regulated transcript levels of several genes involved in menthol biosynthesis, there is this expectance that GA3 treatment might not have a prominent role in enhancing menthol yield via transcription regulation. Transcript level of the majority genes after methyl jasmonate treatment gradually increased and reached the highest level at 72 h, therefore, it is possible that methyl jasmonate improves medicinal properties of M. piperita. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Relative expression of genes of menthol biosynthesis pathway in peppermint (Mentha piperita L.) after chitosan, gibberellic acid and methyl jasmonate treatments

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Publisher
Pleiades Publishing
Copyright
Copyright © 2017 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443717010150
Publisher site
See Article on Publisher Site

Abstract

Menthol as an important component of monoterpenes essential oil in peppermint (Mentha piperita L.) is widely applied for medical and industrial uses. In this study, the effect of exogenous applications of chitosan (200 mg/L), gibberellic acid (50 mg/L) and methyl jasmonate (300 μM) was investigated in the main genes of menthol biosynthesis pathways within a 72 h time period using qRT-PCR. Transcript levels of most genes were either unaffected or down-regulated following chitosan treatment relative to control plants. Decreasing of geranyl diphosphate synthase (GDS) and limonene synthase (LS) genes transcript in chitosan treatment could possibly be effective in reducing of limonene level. On the other hand, it seems that an increase in menthone-menthol reductase (MMR) transcription level at 72 h under these treatments had a positive role in increasing the amount of menthol in this plant. Since exogenous application of gibberellic acid (GA3) down-regulated transcript levels of several genes involved in menthol biosynthesis, there is this expectance that GA3 treatment might not have a prominent role in enhancing menthol yield via transcription regulation. Transcript level of the majority genes after methyl jasmonate treatment gradually increased and reached the highest level at 72 h, therefore, it is possible that methyl jasmonate improves medicinal properties of M. piperita.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Feb 23, 2017

References

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