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Molecules 2018, 23(8), 1903; https://doi.org/10.3390/molecules23081903

Effect of Heat Stress on Yield, Monoterpene Content and Antibacterial Activity of Essential Oils of Mentha x piperita var. Mitcham and Mentha arvensis var. piperascens

1
Department of Agronomy and Plant Breeding, Collage of Agriculture and Natural Resources, University of Tehran, P.O. Box 31787-316 Karaj, Iran
2
Department of Biology—University of Naples “Federico II”, 80126 Naples, Italy
3
Medicinal Plants and Drug Research Institute, ShahidBeheshti University, G.C. Tehran 11369, Iran
4
C.e.S.M.A. University of Naples “Federico II”, 80126 Naples, Italy
5
Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80126 Naples, Italy
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Received: 20 July 2018 / Revised: 26 July 2018 / Accepted: 28 July 2018 / Published: 30 July 2018
(This article belongs to the Special Issue Essential Oils as Antimicrobial and Anti-infectious Agents)
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Abstract

Heat stress affects the yield of medicinal plants and can reduce biomass and/or metabolite production. In order to evaluate the effect of heat-induced stress on the essential oil production in Mentha x piperita L. var. Mitcham (Mitcham mint) and Mentha arvensis var. piperascens Malinv. ex L. H. Bailey (Japanese mint), we studied the chemical composition of the oils of the two mint species under different heat shock stresses in growth chambers. The antibacterial activity of the essential oils was also evaluated; microscopic observation (fluorescence and electron transmission) was used to assess the effect of the tested samples on bacterial growth. The results obtained shed light on the mint essential oils composition and biological activity in relation to heat stress. View Full-Text
Keywords: Mentha x piperita; Mentha arvensis; essential oils; heat stress; antibacterial activity; monoterpenes Mentha x piperita; Mentha arvensis; essential oils; heat stress; antibacterial activity; monoterpenes
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Heydari, M.; Zanfardino, A.; Taleei, A.; Shahnejat Bushehri, A.A.; Hadian, J.; Maresca, V.; Sorbo, S.; Di Napoli, M.; Varcamonti, M.; Basile, A.; Rigano, D. Effect of Heat Stress on Yield, Monoterpene Content and Antibacterial Activity of Essential Oils of Mentha x piperita var. Mitcham and Mentha arvensis var. piperascens. Molecules 2018, 23, 1903.

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