Allelopathic effect of Schinus molle essential oils on wheat germination

Zahed, Nesrine; Hosni, Karim; Brahim, Nadia Ben; Kallel, Monem; Sebeï, Houcine

doi:10.1007/s11738-010-0492-z

Cited by 68 publications

(33 citation statements)

References 39 publications

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“…Traditionally, the S. molle volatile compounds are extracted by hydrodistillation (Santos et al, 2007;Zahed et al, 2010) or by steam distillation (Bendaoud et al, 2010) in a Clevenger-type apparatus and the isolated oil is dried over anhydrous Na 2 SO 4 . With regard to non-volatile compounds, the extracts are conventionally obtained by maceration using methanol (Marzouk et al, 2006;Ferrero et al, 2007), ethanol (Huerta et al, 2010), or n-hexane (Ferrero et al, 2007) as solvent.…”

Section: Introductionmentioning

confidence: 99%

Supercritical fluid extraction of volatile and non-volatile compounds from Schinus molle L.

Barroso

Villanueva

Lucas

et al. 2011

Braz. J. Chem. Eng.

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-Schinus molle L., also known as pepper tree, has been reported to have antimicrobial, antifungal, anti-inflammatory, antispasmodic, antipyretic, antitumoural and cicatrizing properties. This work studies supercritical fluid extraction (SFE) to obtain volatile and non-volatile compounds from the aerial parts of Schinus molle L. and the influence of the process on the composition of the extracts. Experiments were performed in a pilot-scale extractor with a capacity of 1 L at pressures of 9, 10, 12, 15 and 20 MPa at 323.15 K. The volatile compounds were obtained by CO 2 supercritical extraction with moderate pressure (9 MPa), whereas the non-volatile compounds were extracted at higher pressure (12 to 20 MPa). The analysis of the essential oil was carried out by GC-MS and the main compounds identified were sabinene, limonene, D-germacrene, bicyclogermacrene, and spathulenol. For the non-volatile extracts, the total phenolic content was determined by the Folin-Ciocalteau method. Moreover, one of the goals of this study was to compare the experimental data with the simulated yields predicted by a mathematical model based on mass transfer. The model used requires three adjustable parameters to predict the experimental extraction yield curves.

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Section: Introductionmentioning

confidence: 99%

Supercritical fluid extraction of volatile and non-volatile compounds from Schinus molle L.

Barroso

Villanueva

Lucas

et al. 2011

Braz. J. Chem. Eng.

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“…According to Magalhães et al (2013), the essential oil of Cymbopogon citratus was capable of depressing lettuce achene germination by more than 70%. Zahed et al (2010) also observed that the essential oil from Schinus moll fruits completely inhibited germination and root elongation in Triticum aestivum L. when applied at concentrations of 10 and 30µ/ml. According to Mutlu et al (2011), the essential oil of Nepeta meyeri Benth.…”

Section: Introductionmentioning

confidence: 82%

Chemical constitution and allelopathic effects of Curcuma zedoaria essential oil on lettuce achenes and tomato seeds

Melo¹,

Sá²,

Oliveira³

et al. 2017

Aust J Crop Sci

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The contamination of food, water, and soils by herbicides, as well as the growing resistance of weeds to these products, has increased demands for alternative methods of weed control that have less impact on the environment and human health. Curcuma zedoaria (zedoary), a species of the Zingiberaceae family, is a promising plant for alternative weed control as it produces an essential oil with herbicidal action. We evaluated the chemical composition of C. zedoaria essential oil and its allelopathic effects on the vigor and germination of lettuce achenes and tomato seeds. The essential oil was extracted from the plant rhizome by hydrodistillation and subjected to gas chromatography-mass spectrometry to identify its component chemical compounds. Bioassays to evaluate allelopathic potential were performed in gerbox-type containers maintained in a refrigerated biochemical oxygen demand incubator at 25°C. The treatments consisted of five essential oil concentrations (0.00, 0.25, 0.50, 0.75, and 1.00%) and two bioindicators (lettuce and tomato). C. zedoaria essential oil comprises monoterpene hydrocarbons (4.63%), oxygenated monoterpenes (25.88%), sesquiterpene hydrocarbons (21.95%), and oxygenated sesquiterpenes (47.54%). The major compounds encountered were 1.8-cineole (15.75%) and epi-curzerenone (18.20%). We believe that the isolated effect of these compounds or the synergism between them may have influenced the observed results. Germination was inhibited in both bioindicator species, but the percentage inhibition was greater in lettuce achenes. Germination rates decreased in lettuce and tomato with increasing concentrations of essential oil, and bioindicator growth was slowed. The root system was more heavily damaged than the hypocotyl, especially in tomato compared to lettuce. These preliminary results indicate that C. zedoaria essential oil has allelopathic effects on seed germination and seedling growth and thus shows potential for weed control.

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“…S. molle presents high contents of allelochemicals with noteworthy biological activities (Gebre-Amlak & Azerefegne 1999) and in vitro allelopathy (Materechera & Hae 2008, Zahed et al 2010. The increment in fertility combined with inhibitory effects (and low plant diversity) was also observed under plantations of Pinus taeda L. and Eucalyptus viminalis Labill.…”

Section: Discussionmentioning

confidence: 99%

Woody species recruitment under monospecific plantations of pioneer trees - facilitation or inhibition?

Trindade¹,

Coelho²

2012

iForest

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The successional model of forest restoration is based on the facilitation process, in which the establishment of pioneer tree species favors the late successional tree species. We tested the hypothesis of facilitation through a case study, comparing tree species diversity in the understory of two Neotropical native tree species plantations, Trema micrantha (L.) Blüme (Cannabaceae) and Schinus molle L. (Anacardiaceae). Results obtained under the plantations were compared with an adjacent area under spontaneous secondary succession, analyzing the ligneous plant diversity, soil physic-chemistry and shading. Additionally, the seed rain under the two plantations was analyzed. The area of spontaneous secondary succession and the area with T. micrantha had the highest ligneous plant diversity. The understory of T. micrantha plantation had the lowest light intensity and higher late successional species abundance. In addition, T. micrantha had higher plant diversity than S. molle, which could be explained at least partially by higher diversity in the seed rain. Higher litterfall and mineral content of leaves and twigs of T. micrantha did not coincide with higher topsoil mineral content under that species. Instead, soil under S. molle had higher level of P than the soil under T. micrantha. Data suggest that a high diversity of ligneous plants could be thrived by the spontaneous succession. On the other hand, T. micrantha had promoted a higher richness and abundance of late successional species, which could be related to a more pronounced shade effect, in agreement with the facilitation conception. The lowest diversity and density of ligneous plant species under S. molle characterizes an inhibition effect. T. micrantha could be included in restoration plans assembled with other species or combined with areas without intervention, whenever the spontaneous regeneration is possible

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Allelopathic effect of Schinus molle essential oils on wheat germination

Cited by 68 publications

References 39 publications

Supercritical fluid extraction of volatile and non-volatile compounds from Schinus molle L.

Supercritical fluid extraction of volatile and non-volatile compounds from Schinus molle L.

Chemical constitution and allelopathic effects of Curcuma zedoaria essential oil on lettuce achenes and tomato seeds

Woody species recruitment under monospecific plantations of pioneer trees - facilitation or inhibition?

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