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

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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Effects on growth, essential oil content and composition of the volatile fraction of Achillea millefolium L. cultivated in hydroponic systems deficient in macro- and microelements

Scientia Horticulturae ◽

10.1016/j.scienta.2015.09.046 ◽

2015 ◽

Vol 197 ◽

pp. 329-338 ◽

Cited By ~ 9

Author(s):

Ivan Caldeira Almeida Alvarenga ◽

Paulo Fernandes Boldrin ◽

Fernanda Ventorim Pacheco ◽

Sâmia Torres Silva ◽

Suzan Kelly Vilela Bertolucci ◽

...

Keyword(s):

Essential Oil ◽

Oil Content ◽

Achillea Millefolium ◽

Volatile Fraction ◽

Hydroponic Systems

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Essential oil compositions of summer savory under foliar application of jasmonic acid and salicylic acid

Journal of Essential Oil Research ◽

10.1080/10412905.2014.922508 ◽

2014 ◽

Vol 26 (5) ◽

pp. 342-347 ◽

Cited By ~ 10

Author(s):

Abdollah Ghasemi Pirbalouti ◽

Mehdi Rahimmalek ◽

Ladan Elikaei-Nejhad ◽

Behzad Hamedi

Keyword(s):

Salicylic Acid ◽

Essential Oil ◽

Jasmonic Acid ◽

Foliar Application

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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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The Effect of Foliar Application of Zinc on Essential Oil Content and Composition of Holy Basil [Ocimum sanctum] at First and Second Harvests

Journal of Essential Oil Bearing Plants ◽

10.1080/0972060x.2017.1284609 ◽

2017 ◽

Vol 20 (2) ◽

pp. 449-458 ◽

Cited By ~ 4

Author(s):

Zohreh Moghimipour ◽

Mohammad Mahmoodi Sourestani ◽

Naser Alemzadeh Ansari ◽

Zahra Ramezani

Keyword(s):

Essential Oil ◽

Oil Content ◽

Foliar Application ◽

Ocimum Sanctum ◽

Holy Basil

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Effect of salicylic acid foliar application on growth, glandular hairs and essential oil yield in Salvia officinalis L. grown under zinc stress

Chemical and Biological Technologies in Agriculture ◽

10.1186/s40538-020-00192-6 ◽

2020 ◽

Vol 7 (1) ◽

Author(s):

Fatima Zohra Es-sbihi ◽

Zakaria Hazzoumi ◽

Khalid Amrani Joutei

Keyword(s):

Salicylic Acid ◽

Essential Oil ◽

Foliar Application ◽

Essential Element ◽

Salvia Officinalis ◽

Oil Yield ◽

Glandular Hairs ◽

Positive Effects ◽

Essential Oil Yield ◽

Zn Stress

Abstract Background Generally, zinc (Zn) is an essential element and acts as a plant nutrient, but at higher concentrations, it is toxic. Higher uptake and translocation of Zn into plant tissues can cause serious physiological and biochemical alterations. However, salicylic acid (SA) is an endogenous regulator of growth and signaling molecule responsible for inducing environmental stress tolerance in plants. Therefore, spray application of SA could provide protection against several types of stresses such as Zn toxicity. In this context, the ameliorative effect of SA (0.5 and 1 mM) on Salvia officinalis L. under Zn stress (40 mM) was studied. Results Zn stress decreased growth, chlorophyll content, essential oil yield and peltate glandular trichome density. This toxicity can be linked to a strong accumulation of Zn in the various parts of the plant. In addition, Zn stress disturbed nutrients assimilation (K, P and Ca). However, spray of SA, particularly at 0.5 mM improved all parameters studied under both Zn and normal conditions. The positive effects of SA under Zn stress condition may be due to the decrease of Zn accumulation in different parts of the plant. This decrease was accompanied by an increase in K, P and Ca content. In addition, the histological study of S. officinalis leaves showed the presence of two types of glandular hairs, the peltate and capitate glands. In the leaves of stressed plants, we noticed the presence of glands with deformations in the form of pockets in the number of one or more as well as the glands with an oval form. On the other hand, all these abnormalities glands were not detected in stressed plants that were sprayed with SA. Therefore, the absence of these anomalies under the effect of SA showed the remedial effect of this growth regulator. Conclusion The findings of the present work suggest that spraying SA maybe useful for improving the plant growth in Zn-contaminated areas.

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