Thyme essential oil as a defense inducer of tomato against gray mold and Fusarium wilt

Ben-Jabeur, Maissa; Ghabri, Emna; Machraoui, Myriam; Hamada, Walid

doi:10.1016/j.plaphy.2015.05.006

Cited by 72 publications

(48 citation statements)

References 24 publications

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“…6 ). A significantly lower disease incidence and higher PEDC of thymol nanoemulsion in pot experiments could be explained by (a) the direct antibacterial activity of thymol nanoemulsion and (b) induction of plant defense reactions by eliciting the synthesis of phenolic compounds and peroxidase activity 53 , 54 . It is crucial to unravel the effect of thymol nanoemulsion on plant growth, so that an optimized dose could be figured out for effective control of disease with sustained plant growth.…”

Section: Discussionmentioning

confidence: 99%

Thymol nanoemulsion exhibits potential antibacterial activity against bacterial pustule disease and growth promotory effect on soybean

Kumari

Kumaraswamy

Choudhary

et al. 2018

Sci Rep

137

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An antibacterial and plant growth promoting nanoemulsion was formulated using thymol, an essential oil component of plant and Quillaja saponin, a glycoside surfactant of Quillaja tree. The emulsion was prepared by a sonication method. Fifty minutes of sonication delivered a long term stable thymol nanoemulsion which was characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), cryogenic-field emission scanning electron microscopy (Cryo-FESEM) and fourier transform infra-red (FTIR) spectroscopy. Creaming index, pH and dilution stability were also studied for deliberation of its practical applications. The nanoemulsion (0.01–0.06%, v/v) showed substantial in vitro growth inhibition of Xanthomonas axonopodis pv. glycine of soybean (6.7-0.0 log CFU/ml). In pot experiments, seed treatment and foliar application of the nanoemulsion (0.03–0.06%, v/v) significantly lowered the disease severity (DS) (33.3–3.3%) and increased percent efficacy of disease control (PEDC) (54.9–95.4%) of bacterial pustule in soybean caused by X. axonopodis pv. glycine. Subsequently, significant enhancements of plant growth were also recorded in plants treated with thymol nanoemulsion. This is the first report of a thymol based nanoemulsion obtained using Quillaja saponin as a surfactant. Our study claims that nano scale thymol could be a potential antimicrobial and plant growth promoting agent for agriculture.

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Section: Discussionmentioning

confidence: 99%

Thymol nanoemulsion exhibits potential antibacterial activity against bacterial pustule disease and growth promotory effect on soybean

Kumari

Kumaraswamy

Choudhary

et al. 2018

Sci Rep

137

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“…For example, in Southern France, there are oil chemotypes of the species T. vulgaris with geraniol, alpha-terpineol, thuyanol-4, linalool, carvacrol, and thymol being the prevailing components, whereas in Spain, there is a report of a chemotype with 1,8-cineol being the main component [61]. Thyme oil is one of the 10 most commercial oils worldwide, since it is used as a natural food preservative, has considerable antioxidant, antibacterial, and antifungal effects [62,63], and is used as an aromatic additive to a variety of foods and drinks, as well as in personal care products (perfumes, cosmetics, soaps, oral solutions) [20,64].…”

Section: Thyme Essential Oilmentioning

confidence: 99%

Antimicrobial Activity of Basil, Oregano, and Thyme Essential Oils

Sakkas

Papadopoulou

2017

Journal of Microbiology and Biotechnology

286

153

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For centuries, plants have been used for a wide variety of purposes, from treating infectious diseases to food preservation and perfume production. Presently, the increasing resistance of microorganisms to currently used antimicrobials in combination with the appearance of emerging diseases requires the urgent development of new, more effective drugs. Plants, due to the large biological and structural diversity of their components, constitute a unique and renewable source for the discovery of new antibacterial, antifungal, and antiparasitic compounds. In the present paper, the history, composition, and antimicrobial activities of the basil, oregano, and thyme essential oils are reviewed.

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“…(iv) stomatal-opening induced by Z.tritici can cause an increase in N compounds volatilization resulting in decreased 14 N leaf storage, thus a decrease in later 14 N grain content [26]. Moreover, the mechanism involved in the increase of the isotopic fraction 15 N grain tends to be the effect of SLB on increasing grain protein ( 15 N enriched) content as a consequence of the loss of photosynthetic leaf area and, therefore, of carbohydrate availability to the developing grain [26,30].…”

Section: Effect Of Slb On Physiologicaltraits Yield Components and mentioning

confidence: 99%

Seed Coating with Thyme Essential Oil or Paraburkholderia phytofirmans PsJN Strain: Conferring Septoria Leaf Blotch Resistance and Promotion of Yield and Grain Isotopic Composition in Wheat

et al. 2019

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Septoria leaf blotch (SLB) is considered one of the most devastating diseases affecting global wheat production. Biostimulant application is among the modern approaches in plant protection to overcome the impact of SLB’s fungicide resistance. In this manner, the effect of coating seeds with thyme essential oil or Paraburkholderia phytofirmansPsJN strain on SLB severity and yield components (spikes/m2, straw yield (SY), grain yield (GY) and thousand kernel weight (TKW)) were assessed under field conditions for 3 years. The effect on physiological traits and nitrogen and carbon isotope composition (δ15Ngrain, δ13Cgrain) and nitrogen and carbon content (Ngrain, Cgrain) of grains was assessed in one year of study. The increasing SLB severity decreased all yield components, increased δ15Ngrain and Cgrain content and slightly decreased δ13Cgrain as the resulting effect of Z.tritici inducing stomatal opening and leaf necrosis. Across the years, both treatments alleviated the SLB adverse impact by reducing SLB severity, increasing spikes/m2, SY, GY and TKW. Both treatments ameliorated grain quality by increasing Cgrain content and decreasing δ13Cgrain and δ15Ngrain. The difference between the performance of thyme oil or PsJN strain in terms of intensity and stability is discussed and considered to be linked to the different triggered systemic resistance and the associated amount of costs deriving from resource allocation towards defense processes.

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Thyme essential oil as a defense inducer of tomato against gray mold and Fusarium wilt

Cited by 72 publications

References 24 publications

Thymol nanoemulsion exhibits potential antibacterial activity against bacterial pustule disease and growth promotory effect on soybean

Thymol nanoemulsion exhibits potential antibacterial activity against bacterial pustule disease and growth promotory effect on soybean

Antimicrobial Activity of Basil, Oregano, and Thyme Essential Oils

Seed Coating with Thyme Essential Oil or Paraburkholderia phytofirmans PsJN Strain: Conferring Septoria Leaf Blotch Resistance and Promotion of Yield and Grain Isotopic Composition in Wheat

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