Chemical Composition and Phytotoxicity of<i>Cupressus sempervirens</i>Leaves Against Crops

M’barek, Kmar

doi:10.1080/0972060x.2016.1226964

Cited by 5 publications

(5 citation statements)

References 48 publications

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“…horizontalis oil are in a good accordance with previous studies of the same Saudi species or those of other similar flora, where α-pinene was the main component of cypress EO [21,[39][40][41][42]. Variations both in the yield and the abundant oil terpenes of plant oils have been recorded in previous reports [22,[43][44][45]. However, β-thujene was presented as the main terpene component (31.4%) in the EO of Brazilian C. sempervirens [43].…”

Section: Discussionsupporting

confidence: 90%

Cupressus sempervirens Essential Oil, Nanoemulsion, and Major Terpenes as Sustainable Green Pesticides against the Rice Weevil

et al. 2023

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In order to find effective, biorational, and eco-friendly pest control tools, Cupressus sempervirens var. horizontalis essential oil (EO) was produced using hydrodistillation, before being analyzed with gas chromatography, specifically, using flame ionization detection. The monoterpene components α-pinene (46.3%), δ-3-carene (22.7%), and α-cedrol, a sesquiterpene hydrocarbon, (5.8%), were the main fractions. An oil-in-water nanoemulsion was obtained following a green protocol. The EO, its nanoemulsion, and its terpenes each exhibited both insecticidal and insect repellent activities against the rice weevil, Sitophilus oryzae. In a contact bioassay, the nanoemulsion induced a 100% adult mortality rate in a concentration of 10.0 µL/cm2 after 4 days of treatment, whereas 40 µL/cm2 of EO and α-cedrol was required to kill 100% of weevils. Using fumigation, nanoemulsion and EO at 10 µL/L air caused a 100% adult mortality rate after 4 days of treatment. The LC50 values of botanicals ranged between 5.8 and 53.4 µL/cm2 for contact, and between 4.1 and 19.6 µL/L for fumigation. The phytochemicals strongly repelled the weevil at concentrations between 0.11 and 0.88 µL/cm2, as well as considerably inhibiting AChE bioactivity. They were found to be safe for earthworms (Eisenia fetida) at 200 mg/kg, which also caused no significant alteration in wheat grain viability. This study provides evidence for the potential of using the EO of C. sempervirens and its nanoemulsion as natural, eco-friendly grain protectants against S. oryzae.

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Section: Discussionsupporting

confidence: 90%

Cupressus sempervirens Essential Oil, Nanoemulsion, and Major Terpenes as Sustainable Green Pesticides against the Rice Weevil

et al. 2023

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“…Although in this study Z. officinale and C. sempevirens EOs showed radical elongation inhibition of L. sativum seeds, in literature, there are no other data on the phytotoxic activity of Z. officinale EO on this plant species and only one study showing a strong inhibitory effect of C. sempervirens aqueous extract on seed germination of lettuce, radish, and tomato [29,30].…”

Section: Discussionmentioning

confidence: 85%

Characterization and Phytotoxicity Assessment of Essential Oils from Plant Byproducts

et al. 2019

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The present work describes the chemical characterization and the phytotoxicity assessment of essential oils (EOs) obtained from spent materials or pruning waste of four plant species: Zingiber officinale Roscoe used in the juicing industry, Pistacia vera L. var. Bronte used in the food industry, discarded material of industrial hemp (Cannabis sativa L. var. Futura 75), and pruning waste from Cupressus sempervirens L. The phytochemical profile of the EOs was evaluated by gas chromatographic flame ionization detection (GC-FID) and GC-MS analyses, which highlighted the presence of several compounds with a wide range of biological activities. Among them, application possibilities in agriculture were evaluated by studying the phytotoxic activity in vitro against germination and initial radical growth of several seeds such as Raphanus sativus L., Lepidium sativum L., Lactuca sativa L., Solanum lycopersicum L., Lolium multiflorum Lam., and Portulaca oleracea L.

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“…Aqueous extracts of Cupressus sempervirens, a species of cypress common in Mediterranean countries, were found to show phytotoxicity against tomato and lettuce seeds, but aqueous extract analyses were not performed [21]. Duryea et al tested water extracts of fresh mulches, including Taxodium distichum cypress mulch, on lettuce seeds [17].…”

Section: Discussionmentioning

confidence: 99%

“…To characterize the less polar components of leaves, we made leaf extractions with ethanol and analyzed them by UHPLC-HRMS and GC-MS (Figure S2). UHPLC-HRMS analysis showed the expected presence of quinic and shikimic acids, along with catechine (m/z = 289.0721, C 15 H 14 O 6 ); a peak at m/z = 537.0843, assigned to cupressoflavone [21]; and five diterpenoids (Table S4). The peaks at m/z = 301.2175 seemed to correspond to communic acid (C 20 H 30 O 2 ) and the one at 319.2285 to cupressic or isocupressic acid (C 20 H 32 O 3 ), two labdane diterpenoids already detected in other cypress species [20].…”

Section: Chemical Analysismentioning

confidence: 99%

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Phytotoxic Effect of Macerates and Mulches from Cupressus leylandii Leaves on Clover and Cress: Role of Chemical Composition

Khaled

Sleiman

Goupil

et al. 2020

Forests

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The use of plant secondary metabolites is an attractive strategy to control weeds. In this work, cypress (Cupressus leylandii) leaves were collected and tested as aqueous macerates or mulches for their ability to control seed germination and seedling growth of Trifolium repens and Lepidium sativum. Leaves were collected on trees facing the north (S) or facing the sun (L). The rate of seed germination measured on sand was drastically slowed down by the cypress leaves after 8 d of maceration, reaching inhibition of >85% compared to the control at 7 d post-imbibition (dpi). Analysis of macerates by UHPLC-MS revealed the presence of organic acids, phenols, and sugars in amounts increasing with maceration time and the phytotoxic effect. A 5 cm layer of cypress leaf mulch also significantly reduced (p < 0.001) the rate of seedling appearance of Lepidium sativum measured on potting soil compared to the control. Mulches prepared using L leaves were more efficient than those prepared with S leaves (p = 0.0029). Analysis of ethanolic extracts of leaves by mass spectrometry (MS) coupled to liquid (UHPLC) or gas chromatography (GC) showed the presence of a variety of monoterpenes, monoterpenoids, and diterpenoids with a labdane backbone. They were all more concentrated in mulches prepared with L leaves than those prepared with S leaves, in particular diterpenoids, which were about 10-fold more concentrated. However, the identification of phytotoxic components needs further research. It is concluded that due to their phytotoxic properties, Cupressus leylandii leaves could be used as mulch or macerate for target treatment of weedy areas.

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Chemical Composition and Phytotoxicity ofCupressus sempervirensLeaves Against Crops

Cited by 5 publications

References 48 publications

Cupressus sempervirens Essential Oil, Nanoemulsion, and Major Terpenes as Sustainable Green Pesticides against the Rice Weevil

Cupressus sempervirens Essential Oil, Nanoemulsion, and Major Terpenes as Sustainable Green Pesticides against the Rice Weevil

Characterization and Phytotoxicity Assessment of Essential Oils from Plant Byproducts

Phytotoxic Effect of Macerates and Mulches from Cupressus leylandii Leaves on Clover and Cress: Role of Chemical Composition

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