Effect of Foliar Application of Methyl Jasmonate and Extracts of Juniper and Sagebrush on Essential Oil Yield and Composition of ‘Native’ Spearmint

Spearmint (Mentha spicata L.) is a major essential oil crop in the United States. Developing means for increased biomass and oil yields and increased concentrations of carvone would be beneficial for the essential oil industry. A field experiment was conducted to study the effect of foliar application treatments [water (control), water + Tween20, sagebrush essential oil + Tween20, sagebrush water extract, juniper essential oil + Tween20, juniper water extract, and methyl jasmonate] on ‘Native’ spearmint essential oil content, shoot fresh weight, oil yield, and oil composition. The essential oil content was low in the water + Tween20 and in juniper essential oil (EO) + Tween20 treatments and high in the juniper water extract and in methyl jasmonate (MJ) treatments; however, neither of these were different from the water control or from the sagebrush EO + Tween20. Biomass fresh weight was lower in the sagebrush water extract (SWE) and in the juniper water extract (JWE) relative to the water control. The application of juniper EO + Tween20 reduced the concentration of carvone in the oil relative to the water control or to the water + Tween20 treatment. The sagebrush water extract, juniper EO + Tween20, juniper water extract, and MJ increased the concentrations of beta-caryophyllene relative to the water treatment. The concentration of trans-beta-farnesene was lower in the control water treatment and higher in all other treatments. Also, with the exception of sagebrush EO + Tween20, all treatments increased the concentration of germacrene D relative to the water control but not relative to water + Tween20. This study demonstrated that foliar application of sagebrush EO, sagebrush water extract, juniper EO, or juniper water extract to ‘Native’ spearmint may affect the essential oil profile of spearmint essential oil. Some of the treatments increased the concentrations of beta-caryophyllene, trans-beta-farnesene, and germacrene D in the essential oil; however, neither of the treatments increased the concentration of carvone, the main essential oil constituent of ‘Native’ spearmint oil.

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Chemical Composition of Essential Oil of Amomum xanthioides Wall. ex Baker from Northern Vietnam

Biointerface Research in Applied Chemistry ◽

10.33263/briac114.1227512284 ◽

2021 ◽

Vol 11 (4) ◽

pp. 12275-12284

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Oil Content ◽

Bornyl Acetate ◽

Collection Site ◽

Fresh Weight ◽

Northern Vietnam ◽

Germacrene D ◽

Total Oil ◽

Time Of Collection

The essential oil from leaves, roots, stems, and fruits of Amomum xanthioides Wall. ex Baker from Northern Vietnam was obtained by hydrodistillation and analyzed by gas chromatography techniques. The yield of the essential oil obtained from leaves, roots, stems, and fruits of A. xanthioides was 0.26%, 0.24%, 0.19%, and 1.45% (w/w) by fresh weight, respectively. The composition of the oil samples was compared; 38, 43, 28, and 22 compounds have been identified in the essential oil of leaves, roots, stems, and fruits, accounting for 96.19%, 96.61%, 98.39%, and 98.12% of the total oil content, respectively. A high variation among organs for the majority of compounds was shown. β-elemene (31.71%), δ-cadinene (10.69%), germacrene D (9.55%), bicycloelemene (8.12%), and bicyclogermacrene (7.93%) are the main compounds in leaves, while β-pinene (29.59%), terpinen-4-ol (10.77%), and α-terpinene (6.96%) are identified as the main compounds in roots. Stems are characterized by high levels of β-elemene (29.58%), spathoulenol (26.89%), and bicycloelemene (6.19%). For fruits, bornyl acetate (37.21%), camphor (19.48%), camphene (14.62%), and limonene (9.64%) are the main compounds. Overall, this study confirms that changes in the yield, composition, and concentration of the essential oil may be caused by several factors such as environmental conditions and climate at the collection site, the time of collection, and the age and properties of plants. This study also provides new data on the chemical composition of the essential oil from A. xanthioides collected from Northern Vietnam.

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Foliar Application of Diammonium Phosphate Increases Essential Oil Content and Changes its Compositions in Mexican Marigold (Tagetes minutaL.)

Journal of Essential Oil Bearing Plants ◽

10.1080/0972060x.2012.10644042 ◽

2012 ◽

Vol 15 (2) ◽

pp. 244-249 ◽

Cited By ~ 1

Author(s):

Mohammad Jamal Saharkhiz ◽

Maryam Negahban Estahbanati ◽

Mahrooz Rezaei ◽

Enayatollah Tafazoli ◽

Hassan Delavar

Keyword(s):

Essential Oil ◽

Oil Content ◽

Foliar Application ◽

Diammonium Phosphate

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Changes in essential oil profile of Thymus daenensis Celak., Thymus fedtschenkoi Ronniger., and Thymus vulgaris L. under methyl jasmonate treatment

Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry ◽

10.2174/1871523020666210114093325 ◽

2021 ◽

Vol 20 ◽

Author(s):

Alireza Shayganfar ◽

Davod Akhzari

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Oil Content ◽

Foliar Application ◽

Block Design ◽

Physiological State ◽

Thymus Vulgaris ◽

Signal Molecules ◽

Oil Composition ◽

Four Levels

Background: Thymus plants are well-known medicinal plants and it is believed that the pharmaceutical and therapeutically properties of these plants are related to their essential oils. The quality and quantity of the essential oils, as a secondary metabolite of aromatic plant, is directly related to the physiological state of the plant. The role of jasmonates in the plant as signal molecules in mediation and up-regulation of plant defense and secondary metabolism processes is well recognized. Objective: With the aim of increasing the performance and stimulating secondary metabolites, this study evaluate the influence of foliar application of MJ on essential oil content and composition of three different Thymus species, whether as an elicitor or an activator. Method: The experiment was arranged in a randomized block design with MJ treatments in four levels (0, 30, 60, 100 mM) and three replications. Results: Compared to the control, essential oil content of all three species increased in all treatment levels. However, the changes of essential oil composition were different. Under MJ treatments, the amount of sesquiterpenes (especially caryophyllene oxide) increased in T. daenensis and T. fedtschenkoi. In addition, the amount of thymol in T. daenensis, thymol, and γ-terpinene in T. vulgaris increased, whereas carvacrol methyl ether in T. daenensis and p-cymene in T. vulgaris decreased. Conclusion: It seems the type of plant species has a specific role in determining the response. There were no interpretable changes between treatment levels.

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Salicylic acid foliar application increases biomass, nutrient assimilation, primary metabolites and essential oil content in Achillea millefolium L

Scientia Horticulturae ◽

10.1016/j.scienta.2020.109436 ◽

2020 ◽

Vol 270 ◽

pp. 109436 ◽

Cited By ~ 2

Author(s):

Pedro Henrique Gorni ◽

Ana Cláudia Pacheco ◽

Adriana Lima Moro ◽

Jonathan Fogaça Albuquerque Silva ◽

Ronaldo Rossetti Moreli ◽

...

Keyword(s):

Salicylic Acid ◽

Essential Oil ◽

Oil Content ◽

Foliar Application ◽

Achillea Millefolium ◽

Primary Metabolites ◽

Nutrient Assimilation

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Effect of elevation and phenological stages on essential oil composition of Stachys

Turkish Journal of Biochemistry ◽

10.1515/tjb-2016-0267 ◽

2017 ◽

Vol 42 (6) ◽

Cited By ~ 1

Author(s):

Masomeh Alimohammadi ◽

Mehrab Yadegari ◽

Hamze Ali Shirmardi

Keyword(s):

Essential Oil ◽

Oil Content ◽

Essential Oil Composition ◽

Oil Composition ◽

Flowering Stage ◽

Natural Habitats ◽

Phenological Stages ◽

Methyl Chavicol ◽

Full Flowering ◽

Germacrene D

AbstractObjective:Determine the best elevation and phenological stages effects on essential oil content and composition inMaterials and methods:Three phenological stages (vegetative, full flowering and seeding) and three elevation ranges (2500–2700, 2700–2900 and over 2900 m), shoots of plants collected from Kallar mountain as natural habitats from Chaharmahal and Bakhtiari Province. Composition of essential oil detected by GC/MS.Results:The maximum amount of secondary metabolites of β-ocimene, methyl chavicol, germacrene-D, 1,8 cineole and phthalate had measured in vegetative stage and various of elevation ranges. The most essential oil content (0.145%) was obtained in 2700–2900 m and full flowering stage. The most components in full flowering were β-eudesmol, menthol and γ-eudesmol. The most of germacrene-D, levomenol, β-thujene, β-caryophyllene, β-sesquiphellandrene, α-eudesmol and delta-cadinene was achieved in seeding stage.Conclusion:Elevation and phenological stages had significant effect on essential oil of

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Growing Medium and Fertilization Regime Influence Growth and Essential Oil Content of Rosemary

HortScience ◽

10.21273/hortsci.26.1.33 ◽

1991 ◽

Vol 26 (1) ◽

pp. 33-34 ◽

Cited By ~ 17

Author(s):

Thomas H. Boyle ◽

Lyle E. Craker ◽

James E. Simon

Keyword(s):

Essential Oil ◽

Oil Content ◽

Dry Weight ◽

Field Soil ◽

Fresh Weight ◽

Sphagnum Peat ◽

Growing Medium ◽

Liquid Fertilization ◽

Fertilizer Regimes ◽

Essential Oil Yield

Plants of rosemary [Rosmarinus officinalis L. (Lamiaceae)] were grown in pots containing a soilless (1 sphagnum peat:1 perlite) or soil-based (1 sphagnum peat: 1 perlite:1 field soil) growing medium and fertilized with either 12N-5.2P-12.5K controlled-release fertilizer (CRF) at 9.0 g/pot; constant liquid fertilization (LF) with 20N4.3P-16.7K at 150 mg N/liter; constant LF at 150 mg N/liter, plus CRF at 4.5 g/pot; weekly LF at 150 mg N/liter; or weekly LF at 150 mg N/liter, plus CRF at 4.5 g/pot. Constant LF plus CRF generally reduced plant height and depressed shoot fresh weight relative to other fertilizer regimes. Essential oil content was highest in plants receiving weekly LF. Plants grown in the soil-based mix were shorter, shoot fresh and dry weight tended to be lower, and essential oil yield was higher when compared to plants grown in the soilless mix. Satisfactory growth was obtained in both media when rosemary plants were fertilized with 12N-5.2P-12.5K CRF at 9.0 g/pot or weekly LF with 20N<.3P-16.7K at 150 mg N/liter.

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Effect of Harvesting Time and Iron Application on Moldavian balm

Notulae Scientia Biologicae ◽

10.15835/nsb649357 ◽

2014 ◽

Vol 6 (4) ◽

pp. 505-508

Author(s):

Prshang KHALILI ◽

Reza AMIRNIA

Keyword(s):

Essential Oil ◽

Iron Content ◽

Oil Content ◽

Foliar Application ◽

Block Design ◽

Dry Weight ◽

Herbaceous Plant ◽

Harvest Time ◽

Branch Number ◽

Study Results

Dracocephalum moldavica L. of the Labiatae family is an annual herbaceous plant. In Iran it is known as Badrashbi and Badrashboo. Recent publications have reported antibacterial and antimicrobial properties of its essential oil, which have a wide usage in industry. In this research, the effects of iron foliar application and different yields’ harvest times on the essential oil content and some morphological treats (plant height, branch number, fresh and dry weights, essential oil content and leaf Iron content) were investigated under experimental study in faculty of Agriculture of Urmia University during 2012. A factorial experiment in a randomized complete block design with three replications was used in the present study. Results showed that foliar application of iron had a significant effect on branch number, fresh and dry weight, biomass and oil percentage. Similarly, harvest time had a significant influence on fresh and dry weight, essential oil content, essential oil yield and leaf iron content, but its effect was not significant on stem diameter and branch number. The best harvest time for Dracocephalum moldavica L. was at 100% of flowering and 6 ml/l of iron application showed the best results in all characters measured.

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