Colored shade nets and different harvest times alter the growth, antioxidant status, and quantitative attributes of glandular trichomes and essential oil of Thymus vulgaris L.

Honorato, Alan da Cunha; Nohara, Gabriel Akira; Assis, Rafael Marlon Alves de; Maciel, João Francisco Amaral; Carvalho, Alexandre Alves de; Pinto, José Eduardo Brasil Pereira; Bertolucci, Suzan Kelly Vilela

doi:10.1016/j.jarmap.2023.100474

Cited by 7 publications

(5 citation statements)

References 49 publications

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“…Factors such as genetic composition, species origin, growing regions and portion of the plant, availability of minerals in the soil, soil type, environmental conditions such as temperature, amount of daylight, frequency of irrigation, fertilizers, and extraction methods influence plant metabolism and, consequently, the synthesis of secondary metabolites. Jointly with extraction methods, such factors can result in different yields and chemical composition profiles of essential oils of the same species (Da Cunha Honorato et al, 2023; Hosseini et al, 2021; Rioba et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

The antibacterial, antioxidant, and insecticidal activities of essential oils from Thymus vulgaris L., Salvia officinalis L., and Ocimum basilicum L.

Oliveira,

Cardoso,

Batista

et al. 2024

Journal of Food Safety

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The essential oils from Thymus vulgaris, Salvia officinalis, and Ocimum basilicum were extracted by hydrodistillation, characterized by gas chromatography/mass spectrometry, and quantified by gas chromatography/flame ionization detector. The principal constituents were thymol, ρ‐cymene and carvacrol (T. vulgaris); camphor, β‐pinene, and 1,8‐cineole (S. officinalis); and (E)‐anethole, linalool, and 1,8‐cineole (O. basilicum). The essential oil from T. vulgaris was the most effective, forming inhibition halos of 46.16 ± 0.16 and 26.38 ± 0.33 mm, respectively, for Salmonella choleraesuis and Listeria monocytogenes. This essential oil was also more effective against S. choleraesuis, with a minimum inhibitory concentration of 8.85 mg mL−1, and a minimum inhibitory concentration of 17.71 mg mL−1 for L. monocytogenes. No bactericidal activity against S. choleraesuis and L. monocytogenes was observed for the essential oils from S. officinalis, and O. basilicum. Scanning electron micrographs showed that the addition of essential oils left the bacterial cells damaged and deformed. Significant 2,2‐diphenyl‐1‐picrylhydrazyl free radical scavenging capacity and lipid substrate protection were observed in the β‐carotene bleaching assay for the essential oil from T. vulgaris, with IC50 of 231.13 ± 0.53 and 15.25 ± 0.38 μg mL−1, respectively. A dose‐dependent relationship between antioxidant activity and concentrations was observed in the tests. Toxicities of LC50 = 1.24, 3.51 and 1.19 mg mL−1 against Drosophila suzukii flies, respectively, were observed for the essential oils from T. vulgaris, S. officinalis, and O. basilicum. Results suggest that essential oils can be promising antioxidant agents, insecticides, and inhibitors of pathogenic bacteria.

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Section: Resultsmentioning

confidence: 99%

The antibacterial, antioxidant, and insecticidal activities of essential oils from Thymus vulgaris L., Salvia officinalis L., and Ocimum basilicum L.

Oliveira,

Cardoso,

Batista

et al. 2024

Journal of Food Safety

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“…A higher p-cymene content was cultivated under full sun conditions for Thymus vulgaris, whose essential oil is rich in pcymene and thymol (carvacrol isomer). [49] Among the other compounds identified in L. gracilis, thymol (3.93-4.38 %), (E)-caryophyllene (2.63-3.82 %), caryophyllene oxide (2.36-2.88 %) and myrcene (1.19-1.25 %) were identified. All these compounds have been reported in L. gracilis.…”

Section: Content Yield and Chemical Composition Of The Essential Oilmentioning

confidence: 94%

Impact of Colored Shade Nets on Biomass Production, Essential Oil Composition and Orientin and Isoorientin Content in Lippia gracilis Schauer

Viana,

Alves de Carvalho,

Alves de Assis

et al. 2023

Chemistry & Biodiversity

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The objective of this study was to evaluate the effect of ChromatiNet on vegetative growth, total antioxidant capacity, phenolic and essential oils (EOs) composition of Lippia gracilis. The plants were cultivated under full sunlight, black, blue and red ChromatiNet. The flavonoid content and antioxidant capacity were quantified spectrophotometrically. The C‐glycosylflavone isomers (orientin and isoorientin) were isolated and identified by conventional spectroscopic techniques and measured using high‐performance liquid chromatography‐diode array detection. The EO was analysed by gas chromatography and gas chromatography‐mass spectrometry. Environment influenced growth, total antioxidant capacity and phytochemical levels. Shoot dry weight, thymol, carvacrol and (E)‐caryophyllene were favoured under red and black ChromatiNet. Root growth, EOs, caryophyllene oxide, p‐cymene, flavonoids, orientin and isoorientin were favoured in sunlight. Growth and accumulation of EOs, flavonoids and photosynthetic pigments increased under blue ChromatiNet. Therefore, Lippia gracilis plants have plasticity related to the spectral quality of light and it cultivate depends of the phytochemicals of interest.

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“…A more practical and farmer-friendly approach to control the quality and quantity of light is by using shading nets (and filter films) with different colors and combinations. Studies have reported increased antioxidant content in thyme [10], marjoram, oregano [9], coriander [11], Asarum [12], basil [13] and several others. The filter films of various colors have different abilities to modify the transmitted light spectrum in the ultraviolet, visible and far-red regions [14].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the use of colored filter films enriches the relative content of scattered light and ratios at the luminous environment of the plant species being grown. This differently scattered light is ultimately perceived by the photosynthetic antenna proteins and affects photosynthesis, carbon assimilation [15,16], and ultimately the compositions of essential oils and secondary metabolites [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Light Qualities on Essential Oil and Asarinin in Asarum heterotropoides Fr. Schmidt var. mandshuricum (Maxim.) Kitag

Wang,

Quan

et al. 2024

Horticulturae

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Asarum heterotropoides Fr. var. mandshuricum (Maxim.) is a perennial herb native to China. Its essential oil components and asarinin are health-promoting compounds. However, cultivation under natural light can affect the growth and secondary metabolite yield of this sciophyte. Adjustment of light irradiance may be beneficial in this respect. Here, we applied six types of filtered solar irradiance by using filter films of red (I), yellow (II), blue (III), green (IV), purple (V) and 50% sunlight (VI). We measured net photosynthetic rate (APn), activity of phenylpropanoid biosynthetic enzymes, asarinin content, and essential oil content and composition. Light quality treatments V and VI resulted in increased APn, enzyme activities, asarinin content and essential oil content. Samples harvested in September 2020 had relatively higher contents and enzyme activities compared to those harvested in July 2020. Elemicin, 2,5-dimethoxytoluene and methyleugenol accumulated at higher levels in response to light quality V. Light qualities III and IV showed promising results for several compounds. Overall, we conclude that controlling the light conditions in growing environments promotes the amount of asarinin and essential oil by regulating photosynthesis and the activities of phenylpropanoid biosynthetic enzymes.

show abstract

Colored shade nets and different harvest times alter the growth, antioxidant status, and quantitative attributes of glandular trichomes and essential oil of Thymus vulgaris L.

Cited by 7 publications

References 49 publications

The antibacterial, antioxidant, and insecticidal activities of essential oils from Thymus vulgaris L., Salvia officinalis L., and Ocimum basilicum L.

The antibacterial, antioxidant, and insecticidal activities of essential oils from Thymus vulgaris L., Salvia officinalis L., and Ocimum basilicum L.

Impact of Colored Shade Nets on Biomass Production, Essential Oil Composition and Orientin and Isoorientin Content in Lippia gracilis Schauer

Effect of Different Light Qualities on Essential Oil and Asarinin in Asarum heterotropoides Fr. Schmidt var. mandshuricum (Maxim.) Kitag

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