Intraspecific divergence in phytochemical characteristics and drought tolerance of two carvacrol-rich Origanum vulgare subspecies: subsp. hirtum and subsp. gracile

Emrahi, Roya; Morshedloo, Mohammad Reza; Ahmadi, Hosein; Javanmard, Abdollah; Maggi, Filippo

doi:10.1016/j.indcrop.2021.113557

Cited by 20 publications

(25 citation statements)

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“…Other groups of monoterpenes such as piperitenone, pulegone, piperitone dihydrocarvone, and menthol have been reported from pineapple mint essential oil [ 5 , 6 , 9 ]. Plants synthesize several different kinds of secondary metabolites during their evolutionary period to cope with environmental conditions [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Selenium Nanoparticles (Se-NPs) Alleviates Salinity Damages and Improves Phytochemical Characteristics of Pineapple Mint (Mentha suaveolens Ehrh.)

Kiumarzi

Morshedloo

Zahedi

et al. 2022

Plants

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The present study examined the effects of foliar spray of selenium nanoparticles (0, 10 and 20 mg/L) on the yield, phytochemicals and essential oil content and composition of pineapple mint (Mentha suaveolens Ehrh.) under salinity stress (0, 30, 60 and 90 mM NaCl). Obtained results demonstrated that severe salinity stress reduced the fresh weight (FW) and plant height (PH) by 16.40% and 19.10%, respectively compared with normal growth condition. On the other hands, under sever salinity stress relative water content (RWC) and chlorophyll index were reduced by 18.05% and 3.50%, respectively. Interestingly, selenium nanoparticles (Se-NPs; 10 mg/L) application improved the pineapple mint growth. Based on GC-FID and GC-MS analysis, 19 compounds were identified in pineapple mint essential oil. Foliar application of Se-NPs and salinity did not change the essential oil content of pineapple mint, however, the essential oil compounds were significantly affected by salinity and Se-NPs- applications. Foliar application of Se-NPs- had a significant effect on piperitenone oxide, limonene, jasmone, viridiflorol and β-myrsene under different salinity levels. The highest percentage of piperitenone oxide (79.4%) as the major essential oil component was recorded in the no salinity treatment by applying 10 mg/L of nanoparticle. Interestingly, application of 10 mg L−1 Se-NPs- under 60 mM NaCl increased the piperitenone oxide content by 9.1% compared with non-sprayed plants. Finally, the obtained results demonstrated that foliar application of Se-NPs (10 mg L−1) can improve the pineapple mint growth and secondary metabolites profile under saline conditions.

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Section: Introductionmentioning

confidence: 99%

Selenium Nanoparticles (Se-NPs) Alleviates Salinity Damages and Improves Phytochemical Characteristics of Pineapple Mint (Mentha suaveolens Ehrh.)

Kiumarzi

Morshedloo

Zahedi

et al. 2022

Plants

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“…gracile as the main components. These two subspecies were considered to be among the richest sources of EOs and carvacrol in the so-called oregano world (Emrahi et al, 2021). They suggested that under purposive or regulated water deficiency stresses, the subsp.…”

Section: Discussionmentioning

confidence: 99%

“…hirtum yielded the higher EO content (70% higher than subsp. gracile), carvacrol content (20% higher), and dry material (15% higher) (Emrahi et al, 2021). Lambert et al (2001) reported that the mixtures of carvacrol and thymol gave an additive effect, and the overall inhibition by the OEO could be attributed mainly to the additive antimicrobial action of these two compounds against Pseudomonas aeruginosa and S. aureus.…”

Section: Discussionmentioning

confidence: 99%

“…EOs extracted from the leaves and inflorescence of oregano have been claimed to have numerous useful biological activities, including antioxidant, antimicrobial, anti-inflammatory, antidiabetic, and cancer-suppressing effects (Leyva-Lopez et al, 2017). Carvacrol-rich chemotypes of oregano cover most of its natural range of biological activities, which have a vast range of applications in food industries (Emrahi et al, 2021). Carvacrol [2-methyl-5-(1-methylethyl) phenol], a monoterpenic phenol, is one of the main essential oil compounds produced by oregano plants, which exhibits significant antimicrobial activity against foodborne pathogens (Miladi et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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A Carvacrol-Rich Essential Oil Extracted From Oregano (Origanum vulgare “Hot & Spicy”) Exerts Potent Antibacterial Effects Against Staphylococcus aureus

Hao

Shi

2021

Front. Microbiol.

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Oregano essential oil (OEO), as a natural antimicrobial, has gained increased interest from food researchers and manufacturers. However, a few studies have investigated its possible antibacterial effects against Staphylococcus aureus using the proteomic tool. The present study aimed to explore the antibacterial effect and mechanism of a carvacrol-rich OEO extracted from Origanum vulgare “Hot & Spicy” on the inactivation of S. aureus. The gas chromatography–mass spectrometry analysis of the OEO allowed the detection of 27 compounds; the major constituent was carvacrol (84.38% of total compounds). The average diameter of the inhibitory zone (DIZ) value was 29.10 mm, and the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of OEO against S. aureus were 0.125 and 0.25 mg/mL, respectively. The growth curve assay indicated that the OEO prolonged the lag phase of S. aureus. The decrease in cell viability, changes in the integrity of cell membrane, and abnormal cell morphology further reflected the cell damage of S. aureus caused by the OEO. In addition, a label-free proteomic analysis was applied to analyze the regulatory networks of S. aureus in response to 1/2 MIC OEO-treatment stress. Of the 56 differentially expressed proteins (DEPs) identified, 26 were significantly upregulated and 30 downregulated. The Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis indicated that the DEPs were mainly involved in pathways of ribosomes; valine, leucine, and isoleucine biosynthesis; and phenylalanine, tyrosine, and tryptophan biosynthesis, which suggested that the growth inhibition of S. aureus might be due to the disordered effect of the OEO on protein synthesis and amino acid metabolism. These findings deepened our understanding regarding S. aureus survival and metabolism responses to the OEO treatment and suggested that the carvacrol-rich OEO could be used in food production environments to effectively control S. aureus.

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“…Such high-quality plant materials have wide commercial applications in the food, cosmetics, and pharmaceutical fields. Indeed, the economic yield of EO-bearing plants depends on four key factors: the accumulation of dry material, ratio of economically valuable parts, EO amount, and relative contents of valuable compounds [18]. Plants produce large quantities of metabolites in an environment-dependent and spatiotemporally dependent manner [19].…”

Section: Chemical Composition Of Oeosmentioning

confidence: 99%

Analysis of the Chemical Profiles and Anti-S. aureus Activities of Essential Oils Extracted from Different Parts of Three Oregano Cultivars

Hao

Zhang

et al. 2021

Foods

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The use of antibiotics in the food industry is highly regulated owing to the potential harmful effects of antibiotics on human health. Therefore, it is crucial to seek alternatives for ensuring food safety. Essential oils (EOs) extracted from plants of the genus Origanum exhibit a wide range of chemical and antibacterial activities. Species and tissue factors shape the production and accumulation processes of EOs in Origanum plants, thereby affecting their bactericidal activity. In this study, the morphologies and EO yields from the inflorescences, leaves, and stems of three oregano cultivars were evaluated. In addition, the chemical compositions and antibacterial abilities of oregano EOs (OEOs) were assessed. The results showed that OEOs from the different parts of the plant displayed only minor differences in chemical composition, whereas the yield of EOs varied considerably. Additionally, the chemical profiles of OEOs differed significantly among cultivars. The carvacrol content in the OEOs was closely related to its activity against Staphylococcus aureus; the antibacterial properties of the OEOs were further verified using carvacrol. These findings suggested that OEOs possessing high antibacterial activity may have the potential to be developed as bactericides in the food industry.

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Intraspecific divergence in phytochemical characteristics and drought tolerance of two carvacrol-rich Origanum vulgare subspecies: subsp. hirtum and subsp. gracile

Cited by 20 publications

References 42 publications

Selenium Nanoparticles (Se-NPs) Alleviates Salinity Damages and Improves Phytochemical Characteristics of Pineapple Mint (Mentha suaveolens Ehrh.)

Selenium Nanoparticles (Se-NPs) Alleviates Salinity Damages and Improves Phytochemical Characteristics of Pineapple Mint (Mentha suaveolens Ehrh.)

A Carvacrol-Rich Essential Oil Extracted From Oregano (Origanum vulgare “Hot & Spicy”) Exerts Potent Antibacterial Effects Against Staphylococcus aureus

Analysis of the Chemical Profiles and Anti-S. aureus Activities of Essential Oils Extracted from Different Parts of Three Oregano Cultivars

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