Composição química do óleo essencial de duas amostras de carqueja (Baccharis sp.) coletadas em Paty do Alferes - Rio de Janeiro

Morais, L. A. S. de; Castanha, Rodrigo Fernandes

doi:10.1590/s1516-05722011000500020

Cited by 6 publications

(5 citation statements)

References 10 publications

(4 reference statements)

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“…Morais and Castanha [46] obtained similar results to those of this study when evaluating the chemical composition of two populations of "carqueja" (Baccharis sp.) in the state of Rio de Janeiro, Brazil.…”

supporting

confidence: 83%

Effect of Organic Fertilizer Doses on the Plant Growth, Essential Oil Production and Chemical Substances of “Carqueja” over Two Harvest Moments

García¹,

Silva²,

Furlan³

et al. 2017

JAST-B

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Abstract:This study aimed to investigate, for the first time, the plant growth, essential oil content and their chemical substances of Baccharis trimera (Less.) DC., the first Brazilian variety of medicinal plant, in response to five doses of organic fertilizer (0,10,20,30,40 and 50 ton/ha) over two harvest moments-120 d and 242 d after transplanting (DAT). The work was carried out from February to October 2011 at the experimental farm of the Sao Paulo State University "Julio de Mesquita Filho" (UNESP), Brazil. The seedlings of B. trimera var. CPQBA-1 were respectively transplanted into experiment plots under six treatments: 0, 10, 20, 30, 40 and 50 ton/ha of organic fertilizer. Each treatment had four replications and each plot consisted of 12 plants. Then they were harvested at 120 DAT and 242 DAT, and the essential oil were extracted by hydrodistillation and analyzed by gas chromatograph. The results were subjected to analysis of variance and the means were analysed using Tukey's test (5%) followed by a regression analysis. The fertilizer dose significantly influenced the height of the plants in the second harvest, while the higher dose of organic fertilizer positively impacted the essential oil content in the first harvest. Also, the level of organic fertilizer was directly correlated with the production of dry matter during the regrowth. Twenty-seven substances were identified in the essential oil samples, and the major components were: bicyclogermacrene, trans-caryophyllene, germacrene-D, spathulenol and caryophyllene oxide. These findings suggest that to obtain higher yields of dry matter of B. trimera, it should be harvested around 242 DAT and organic fertilizer should be applied approximately to 50 ton/ha. Furthermore, higher doses of organic fertilizer and harvest at 120 DAT is able to increase the essential oil content.

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supporting

confidence: 83%

Effect of Organic Fertilizer Doses on the Plant Growth, Essential Oil Production and Chemical Substances of “Carqueja” over Two Harvest Moments

García¹,

Silva²,

Furlan³

et al. 2017

JAST-B

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“…Because essential oils are secondary metabolites produced for plant's defense [13], genotypes attacked by wasps with gall formation are likely to produce more essential oil as defense strategy [22]. These results corroborate with Morais and Castanha (2012) [23], who found higher concentrations of monoterpenes in the essential oil of basil attacked by mealybug, and Queiroz-Voltan et al (1995) [24] in Hyptis suaveolens populations attacked by herbivores, which produced larger amounts of essential oil.…”

Section: : Two-dimensional Dendrogram Obtained In the Cluster Analysi...supporting

confidence: 71%

Chemical composition of the essential oil of Eucalyptus genotypes susceptible or resistant to the gall-forming wasp Leptocybe invasa Fisher & La-Salle, 2004 (Hymenoptera: Eulophidae)

Dantas,

Pinto,

Melo

et al. 2024

Sci. Plena

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Eucalyptus are trees native to Australia and have been cultivated in various regions of the world. In its worldwide expansion, several native and exotic insects began to use these plants for their survival. Leptocybe invasa Fisher & La-Salle, 2004 (Hymenoptera: Eulophidae) is a gall wasp that lay eggs into leaves, young branches, and petioles causing galls; however, there are resistant and susceptible eucalyptus genotypes to gall formation. This study aimed to compare the chemical composition of eucalyptus genotypes and relate it to resistance and susceptibility to gall formation. Leaf oils were extracted by steam distillation and oil compositions were analyzed. The essential oils of eucalyptus genotypes resistant to gall formation had 12 constituents, which do not occur in susceptible genotypes, probably one of the factors that contributes to the resistance of these plants to gall formation. Thus, we suggest an early evaluation of resistant or susceptible eucalyptus genotypes, based on the chemical composition of the essential oils of these plants, avoiding economic losses of planting susceptible genotypes.

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“…There was also an important difference between the ledol content at H1 and at T75 (10.63%) detected during summer. The authors of [46] found a concentration of ledol equal to 13.7% in plants collected in Rio de Janeiro, Brazil, whereas the study in [5] reported a value of 1.30% in the essential oil of B. trimera (Less) DC.…”

Section: Differences In Content and Composition Of Essential Oils Between The Three Harvest Timesmentioning

confidence: 94%

“…Differences between our results and the lower levels observed for other samples in the literature of less than or equal to 1.50% could be linked to the environmental conditions and time of harvest, as well as to water deficits and irrigation management . Several studies based on Eugenia uniflora leaves show that the prevalence of factors, such as seasons, influences the prevalence of oxygenated sesquiterpenes in plants collected during all sampling months and under all chemical variations among the oils [46]. Additionally, the influence of factors such as elevation above sea level, soil type, longitude, and latitude was reflected in the prevalence of sesquiterpenes (83.66%) in Cordia verbanacea and Cordia leucocephala leaves [49].…”

Section: Differences In Content and Composition Of Essential Oils Between The Three Harvest Timesmentioning

confidence: 99%

Essential Oil Content of Baccharis crispa Spreng. Regulated by Water Stress and Seasonal Variation

Moreno-Pizani¹,

Paredes‐Trejo

Farias-Ramirez³

et al. 2020

AgriEngineering

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Carqueja (Baccharis crispa Spreng.) has been primarily used as a medicinal plant around the world. Commercially, the essential oil content of carqueja leaves is the most valuable crop productivity variable. We evaluated the effect of irrigation management in different growing seasons on the essential oil content of carqueja leaves using gas chromatography coupled with mass spectrometry. The experiment was conducted in a greenhouse located in Southern Brazil, where the crop was cultivated for two years in different growing seasons under six irrigation regimes: 25%, 50%, 75%, 100%, 125%, and 150% of the reference crop evapotranspiration (T25, T50, T75, T100, T125, and T150, respectively). A seasonal pattern was observed in the number of metabolites of sesquiterpenes and phenolics in the essential oil extracted from the biomass; this outcome was correlated with irrigation regimes and air temperature. Principal component and hierarchical cluster analyses were used to discriminate the influence of abiotic conditions on secondary metabolite profiles. Spathulenol was the most abundant compound in the essential oils (95.43%) collected during the summer (December–March) season during the third harvest (H3) at T150. The essential oil content was 8.84% ± 0.05% and 10.52% ± 0.10% in summer and winter (June–September), respectively, with T100 at 45 and 46 days after planting.

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Composição química do óleo essencial de duas amostras de carqueja (Baccharis sp.) coletadas em Paty do Alferes - Rio de Janeiro

Cited by 6 publications

References 10 publications

Effect of Organic Fertilizer Doses on the Plant Growth, Essential Oil Production and Chemical Substances of “Carqueja” over Two Harvest Moments

Effect of Organic Fertilizer Doses on the Plant Growth, Essential Oil Production and Chemical Substances of “Carqueja” over Two Harvest Moments

Chemical composition of the essential oil of Eucalyptus genotypes susceptible or resistant to the gall-forming wasp Leptocybe invasa Fisher & La-Salle, 2004 (Hymenoptera: Eulophidae)

Essential Oil Content of Baccharis crispa Spreng. Regulated by Water Stress and Seasonal Variation

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