Skip to main content
Log in

Glandular trichome specificity of menthol biosynthesis pathway gene promoters from Mentha × piperita

  • Original Article
  • Published:
Planta Aims and scope Submit manuscript

Abstract

Main conclusion

Several cis-elements including Myb-binding motifs together confer glandular trichome specificity as revealed from heterologous expression and analysis of menthol biosynthesis pathway gene promoters.

Abstract

Glandular Trichomes (GTs) are result of division of epidermal cells that produce diverse metabolites. Species of mint family are important for their essential oil containing many high-value terpenoids, biosynthesized and stored in these GTs. Hence, GTs constitute attractive targets for metabolic engineering and GT-specific promoters are important. In this investigation, the upstream regions of the Mentha × piperita menthol biosynthetic pathway genes (-)-limonene synthase, (-)-P450 limonene-3- hydroxylase, (-)-trans-isopiperitenol dehydrogenase, (-)-Isopiperitenone reductase, ( +)-Pulegone reductase, (-)-Menthone reductase/ (-)-Menthol dehydrogenase and a branched pathway gene ( +)-menthofuran synthase were isolated and characterized. These fragments, fused to β-glucuronidase (GUS) reporter gene of pBI101 binary vector, are able to drive high level gene expression in transgenic tobacco trichomes with strong signals in GTs, except for (-)-Isopiperitenone reductase. The GT-enriched tissue from transformed plants were analysed for GUS enzyme activity and RNA expression which correlates the GUS staining. To characterize the cis-elements responsible for GT-specific expression, a series of 5’ deletion constructs for MpPLS and MpPMFS were cloned and analysed in stable transgenic tobacco lines. The specificity of trichome expression was located to −  797 to−  598 bp sequence for (-)-limonene synthase and−  629 to −   530 bp for ( +)-menthofuran synthase promoters containing specific Myb-binding motifs in addition to other unique motifs described for developmental regulation without any defined pattern. All other pathway promoters also recruits specific but different Myb factors as indicated by this analysis.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

Data availability

All data generated or analysed during this study are included in this article [and its supplementary information files] and nucleotide sequence information is available in GeneBank database [http://www.ncbi.nlm.nih.gov] under accession numbers mentioned in materials and methods.

References

Download references

Acknowledgements

We thank Director, CSIR-CIMAP for providing necessary facilities, and Dr Vikrant Gupta for providing binary vector plasmid pBI101 for cloning. The research work was financially supported by the Department of Science and Technology (DST), Govt. of India, under project GAP252 and Council of Scientific and industrial research (CSIR), Govt. of India, under project (BSC0203). NQ received research fellowships from CSIR, Govt. of India, and her PhD degree from AcSIR, India.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Ajit Kumar Shasany.

Ethics declarations

Conflict of interest

The authors report no conflicts of interest in this work and have nothing to disclose.

Additional information

Communicated by Anastasios Melis.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (PDF 974 KB)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Qamar, N., Pandey, M., Vasudevan, M. et al. Glandular trichome specificity of menthol biosynthesis pathway gene promoters from Mentha × piperita. Planta 256, 110 (2022). https://doi.org/10.1007/s00425-022-04029-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s00425-022-04029-4

Keywords

Navigation