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A revision of Eupatorium (Compositae: Eupatorieae) from Michoacan Phyton
Garcia Sanchez,E; Ramirez Lopez,CB; del Rio Torres,REN; Martinez Pacheco,MM.
An important study in species of the genus Eupatorium, that inhabits other parts of the world, was conducted in the search for new molecules with pharmacological activities, thus showing that it is a potential source of novel secondary metabolites. We reviewed the number of Eupatorium species that have been described in the State of Michoacan, and that can be available for harvesting, to make a phytochemical screening. It was found that 69 Eupatorium spp are growing in 69% of the Michoacan territory. Within this group there are ten species used in Mexican traditional medicine. It was evident the difficulty in taxonomic classifying these species since several Eupatorium spp have synonyms. It appeared that the number of native members should be reduced in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Eupatorium; Phytochemistry; Michoacan; Terpenes.
Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572011000200004
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Antimicrobial activity of Aspilia latissima (Asteraceae) BJM
Souza,Jeana M.E.; Chang,Marilene R.; Brito,Daniela Z.; Farias,Katyuce S.; Damasceno-Junior,Geraldo A.; Turatti,Izabel C.C.; Lopes,Norberto P.; Santos,Edson A.; Carollo,Carlos A..
Abstract We evaluated the antimicrobial activity of Aspilia latissima - an abundant plant from the Brazilian Pantanal region - against Candida albicans, Candida parapsilosis, Candida krusei, Candida tropicalis, Pseudomonas aeruginosa, Enterococcus faecalis, Escherichia coli and Staphylococcus aureus. The crude extracts and fractions showed activity in all tested microorganisms. The chloroform fraction of the leaves and roots showed the most antimicrobial activity against S. aureus, with an MIC of 500 μg/mL. This fraction was submitted to bioautographic assays to characterize the activity of the compounds. Two bands from the leaves (L-A and L-B) and three bands from the roots (R-C, R-D and R-E) were bioactive. Within the root-derived bands, the terpene...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aspilia latissima; Staphylococcus aureus; Bioautographic; MIC; Terpenes.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401103
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Characterization of the chemical composition of the essential oils from Annona emarginata (Schltdl.) H. Rainer 'terra-fria' and Annona squamosa L. Rev. Bras. Frutic.
Campos,Felipe Girotto; Baron,Daniel; Marques,Marcia Ortiz Mayo; Ferreira,Gisela; Boaro,Carmen Silvia Fernandes.
The objective of this study was to characterize the chemical composition of the essential oil from the leaves of Annona emarginata (Schltdl.) H. Rainer 'terra-fria' and Annona squamosa L. The species were grown in a greenhouse for 18 months, which nutrient solution was applied weekly; the plants were then harvested and the leaves dried to extract the essential oil. The essential oil was analyzed by gas chromatography and mass spectrometry to study its chemical profiles. Eleven substances were found in the essential oil of A. emarginata, primarily (E)-caryophyllene (29.29%), (Z)-caryophyllene (16.86%), γ-muurolene (7.54%), α-pinene (13.86%), and tricyclene (10.04%). Ten substances were detected in the oil from A. squamosa, primarily (E)-caryophyllene...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Annonaceae; Secondary metabolites; Terpenes; Pharmacological potential.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000500024
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Chemical composition of essential oils of peltate glandular trichomes from leaves and flowers of Lepechinia floribunda (Lamiaceae) Boletín de la Sociedad
CAMINA,JULIA L.; DAMBOLENA,JOSÉ S.; ZYGADLO,JULIO A.; ASHWORTH,LORENA.
The knowledge of the chemical composition of different plant organs provides valuable Information for clarifying the functionality of secondary metabolites. Essential oils are secondary metabolites produced and stored in secretory structures on leaves, flowers, and steam. Many studies have shown that the chemical composition of the essential oil can differ depending on the plant organ and the secretory structures even if they are at the same organ. Such differences may be the consequence that organs also differ in type and density of glandular structure. Moreover, the same type of glandular structure can change its chemical composition depending on its position within the same organ. However, no study has been evaluating the chemical composition of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anther; Glandular trichome; Lamiaceae; Leaf; Lepechinia floribunda; Terpenes.
Ano: 2018 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722018000300003
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Cytokinins in the in vitro multiplication and analysis of the volatile fraction of Hyptis marrubioides Rev. Ciênc. Agron.
Rodrigues,Mariane Aparecida; Bertolucci,Suzan Kelly Vilela; Alvarenga,Ivan Caldeira Almeida; Silva,Sâmia Torres; Carvalho,Alexandre Alves de; Pinto,José Eduardo Brasil Pereira.
ABSTRACT The aim of this study was to evaluate different concentrations of two cytokinins in the in vitro propagation of the medicinal plant Hyptis marrubioides Epl. and to analyse the volatile fraction of the compounds. Nodal segments of plants were inoculated onto Murashige and Skoog (MS) solid medium with different concentrations of benzylaminopurine (BAP) or tidiazuron (TDZ) under a 16/8 h light/dark cycle at 25 ± 2 °C. After 45 days growth, the plants were evaluated for the number and length of the shoots and for shoot dry matter. The volatile constituents were analysed by headspace-GC/MS. The greatest number of shoots was obtained with 1.0 mg L-1 TDZ in the MS medium. The greatest values ​​for shoot length and dry matter were obtained with BAP....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth regulators; Proliferation; Terpenes; Medicinal plant; Hyptis smarrubioides.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000100090
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Essential oil composition of fruit colour varieties of Eugenia brasiliensis Lam. Scientia Agricola
Moreno,Paulo Roberto H.; Lima,Marcos Enoque Leite; Sobral,Marcos; Young,Maria Cláudia Marx; Cordeiro,Inês; Apel,Miriam Anders; Limberger,Renata Pereira; Henriques,Amélia Teresinha.
Eugenia brasiliensis Lam. is a variable species concerning fruit colour, with three recognized varieties. However, the definition of varieties is not easy for Myrtaceae species and not widely accepted. Two fruit colour varieties (purple and yellow) of E. brasiliensis had their essential oil composition analysed in order to give support to the existence of varieties for this species. Although, the major components in the leaf oil are the same monoterpenes for both varieties, alpha-pinene, beta-pinene and 1,8-cineol, the purple fruit variety accumulates more oxygenated sesquiterpenes (33.9%) than the one with yellow fruits (3.8%). The major differences occurred in purple fruits that present as major components caryophyllene oxide (22.2%) and alpha-cadinol...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Myrtaceae; Chemotypes; Terpenes; Pinenes; Caryophyllene oxide.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400014
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ESSENTIAL OIL OF Protium unifoliolatum (BURSERACEAE) Acta Amazonica
ZOGHBI,Maria das G. B.; CUNHA,Emidio V. L. da; WOLTER FILHO,Wilson.
The major constituents of the leaf essential oil of P. unifoliolatumare trans-caryophyllene (37.45%), limonene (24.23%) and α-humulene (9.94%).
Tipo: Info:eu-repo/semantics/article Palavras-chave: Burseraceae; Protium; Essential oils; Terpenes.
Ano: 1993 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671993000100015
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ESTs from seeds to assist the selective breeding of Jatropha curcas L. for oil and active compounds. Repositório Alice
GOMES, K. A.; ALMEIDA, T. C.; GESTEIRA, A. da S.; LÔBO, I. P.; GUIMARÃES, A. C. R.; MIRANDA, A. B. de; VAN SLUYS, M. A.; CRUZ, R. S. da; CASCARDO, J. C. M.; CARELS, N..
We report here on the characterization of a cDNA library from seeds of Jatropha curcas L. at three stages of fruit maturation before yellowing. We sequenced a total of 2200 clones and obtained a set of 931 non-redundant sequences (unigenes) after trimming and quality control, ie, 140 contigs and 791 singlets with PHRED quality $10. We found low levels of sequence redundancy and extensive metabolic coverage by homology comparison to GO. After comparison of 5841 non-redundant ESTs from a total of 13193 reads from GenBank with KEGG, we identified tags with nucleotide variations among J. curcas accessions for genes of fatty acid, terpene, alkaloid, quinone and hormone pathways of biosynthesis. More specifically, the expression level of four genes...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Biofuel; Jatropha curcas; Genomics; Fatty acids; Terpenes; Alkaloids; Pinhão manso; Biocombustivel; Melhoramento genetico vegatal.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/865928
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Glandular trichome density and essential oil composition in leaves and inflorescences of Lippia origanoides Kunth (Verbenaceae) in the Brazilian Cerrado Anais da ABC (AABC)
Tozin,Luiz R.S.; Marques,Marcia O.M.; Rodrigues,Tatiane M..
The essential oils from leaves and inflorescences of Lippia origanoides Kunth present aromatic and medicinal potential and have been used to treat several diseases, including melanoma. In Brazil, L. origanoides is commonly found in campo cerrado and cerrado stricto sensu, physiognomies featured mainly by the differential light conditions to which short and medium-sized plants are subjected. Our aim was to investigate the glandular trichome density and the yield and chemical composition of the essential oils in leaves and inflorescences of L. origanoides from campo cerrado and cerrado stricto sensu. For glandular density analysis, leaves and inflorescences were processed according to conventional techniques for scanning electron microscopy. The essential...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Campo cerrado; Cerrado stricto sensu; External glands; Terpenes.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200943
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Growth and essential oil production by Martianthus leucocephalus grown under the edaphoclimatic conditions of Feira de Santana, Bahia, Brazil Ciência Rural
Azevedo,Bianca Oliveira de; Oliveira,Lenaldo Muniz de; Lucchese,Angélica Maria; Silva,Daniel de Jesus da; Ledo,Carlos Alberto da Silva; Nascimento,Marilza Neves do.
ABSTRACT: The semiarid region of Brazil holds a great richness of medicinal and aromatic plants with considerable potential for pharmaceutical, food, cosmetic and biopesticide industries. Martianthus leucocephalus (Mart. Ex Benth.) J. F. B. Pastore is endemic to this region, and its essential oils contain a principle compound, isobornyl formate, which demonstrates antimicrobial activity against Bacilus cereus, Staphylococcus aureus and Candida albicans. In spite of its significant pharmacological potential, little is known about its growth. In light of the influence of seasonality on plant growth, development, and secondary metabolism, the present study evaluated the growth and essential oil content of M. leucocephalus grown and harvested during different...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Semiarid region; Terpenes; Biomass; Endemic medicinal plant; Hyptis leucocephala.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400593
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Growth and production of volatile compounds of yarrow (Achillea millefolium L.) under different irrigation depths Anais da ABC (AABC)
ALVARENGA,IVAN C.A.; PACHECO,FERNANDA V.; ALVARENGA,AMAURI A.; BERTOLUCCI,SUZAN K.V.; PINTO,JOSÉ EDUARDO B.P..
Abstract Yarrow (Achillea millefolium L., Asteraceae) is an important medicinal plant used worldwide for its medicinal properties such as the analgesic, antioxidant and anti-inflammatory ones. The aim of this study was to evaluate the growth and production of photosynthetic pigments and of volatile constituents of Achillea millefolium L. under different irrigation depths. The treatments were the application of 55, 110, 220, 440 and 880 mm of water for a period of 110 days. Data were submitted to polynomial regression analysis at 5% probability, while the volatile constituents were analyzed by standard deviation. Different irrigation depths provided quadratic growth responses being the highest dry matter production at the depth of 440 mm. The contents of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Water stress; 1; 8 cineol; Chlorophyll; Terpenes.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703901
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Intensity of Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) and Liriomyza spp. (Diptera: Agromyzidae) attacks on Lycopersicum esculentum Mill. Leaves Ciência e Agrotecnologia
Leite,Germano Leão Demolin; Picanço,Marcelo; Jham,Gulab Newandran; Marquini,Flávio.
The objective of this study was to determine the effect of height of leaves in the canopy of plants, leaf organic compounds, concentrations of leaf nitrogen and potassium, leaf trichomes and cristalliferous idioblasts densities on the attack intensity of three tomato (Lycopersicon esculentum Mill. cv. Santa Clara) crops by Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) and Liriomyza spp. (Diptera: Agromyzidae), under field conditions. The experimental design was arranged in randomized blocks, with three replications, each being one tomato crop. Analysis of variance and the Tukey’s multiple range test (5% significance) were used to test the effect of canopy height, trichome and cristalliferous idioblasts densities on the number of mines produced by T....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tomato; Population dynamics; Tomato leafminer; Terpenes.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542004000100005
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Level and distribution of 20-hydroxyecdysone during Pfaffia glomerata development Braz. J. Plant Physiol.
Festucci-Buselli,Reginaldo A.; Contim,Luis A. S.; Barbosa,Luiz Cláudio A.; Stuart,Jeff J.; Vieira,Roberto F.; Otoni,Wagner C..
The ecdysteroid 20-hydroxyecdysone (20E) is a steroid hormone found in insects and few plants. To analyze its temporal and spatial distribution in Pfaffia glomerata (Amaranthaceae), we selected among 71 accessions, the accession 13 which showed the highest root 20E total quantity (1.48 g/plant root). The 20E was constantly detected in flowers, leaves, stems, and roots, but its percentage was variable throughout its development. The highest 20E percentage was found in flowers (0.82%), roots (0.66%), leaves (0.60%), and stems (0.24%). While stems showed the least variable 20E percentage (0.13% - 0.24%), followed by roots (0.42% - 0.66%), and flowers (0.47% - 0.82%). Leaves showed the greatest 20E percentage variation (0.21% - 0.60%). The stem and leaves 20E...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pfaffia glomerata (Spreng.) Pedersen; Amaranthaceae; Brazilian ginseng; Phytochemical analysis; Terpenes; Phytoecdysteroid; 20-hydroxyecdysone.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202008000400006
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Potencial insecticida de Roldana ehrenbergiana (Klatt) H. Rob. & Brettel y Asciepias notha W. D. Stevens en larvas de Culex quinquefasciatus Say Colegio de Postgraduados
García, Gabriel.
Las especies Roldana ehrenbergiana (Klatt) H. Rob. & Brettell (Asteraceae) y Asclepias notha W. D. Stevens (Asclepiadaceea), son plantas que se utilizan por sus propiedades tóxicas en hormigas y para obtener una goma natural, respectivamente, ésta última, sintetiza compuestos tóxicos que pueden ser perjudiciales para ciertos insectos. Sin embargo, se desconoce la actividad insecticida de R. ehrenbergiana y A. notha en plagas de interés agrícola o sanitaria. Ante estas interrogativas, la presente investigación tuvo como objetivo evaluar el potencial insecticida de R. ehrenbergiana y A. notha, utilizando larvas en cuanto instar tardío de Culex quinquefasciatus Say (Diptera: Culicidae). Para ello se prepararon extractos de diferentes órganos de la planta...
Tipo: Tesis Palavras-chave: Roldana ehrenbergiana; Asclepias notha; Culex quinquefasciatus; Extractos acuosos-alcohólicos; Actividad insecticida; Terpenos; Maestría; Fisiología Vegetal; Aqueous-alcoholic extracts; Insecticidal activity; Terpenes.
Ano: 2009 URL: http://hdl.handle.net/10521/1649
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Seasonal influence on the essential oil production of Nectandra megapotamica (Spreng.) Mez BABT
Amaral,Lúcio de Paula; Tondolo,Juliana Simoni Moraes; Schindler,Bianca; Silva,Daniela Thomas da; Pinheiro,Carlos Garrido; Longhi,Solon Jonas; Mallmann,Carlos Augusto; Heinzmann,Berta Maria.
This study evaluated the seasonal influence on the yield and chemical composition of the essential oil (EO) of Nectandra megapotamica. Fresh young (YL) and old leaves (OL) obtained from three trees in each season (Nov/2010 to Sep/2011) collected in Santa Maria-RS were hydrodistilled in triplicate. The chemical composition was determined by the gas chromatography coupled to mass spectrometry (GC-MS) and the yield on dry basis was evaluated by two-way ANOVA (seasons, development stage). Spring (Sp) and summer (Su) showed higher average incomes (0.45 and 0.33%), which occurred when flowering, fruiting, and growth of YL and senescence of OL took place, while autumn (Au) presented the lowest yield (0.25%) during the rustification of OL. The highest yield was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lauraceae; Phenology; Variability of volatile oils; Terpenes.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000100012
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Seasonal variation of the essential oil from two Brazilian native Aldama La Llave (Asteraceae) species Anais da ABC (AABC)
OLIVEIRA,TUANE S. DE; BOMBO,ALINE B.; OLIVEIRA,ADRIANA S.S. DE; GARCIA,VERA L.; APPEZZATO-DA-GLÓRIA,BEATRIZ.
ABSTRACT Aldama arenaria and A. robusta are morphologically similar aromatic species that have seasonal development. The yield and chemical composition of essential oils from aerial and underground vegetative organs of these species were compared to verify the production of volatile metabolites in flowering and dormant phases of development and to identify if there are unique compounds for either species. The major compound in the essential oils from A. arenaria leaves was palustrol (16.22%) and for aerial stems was limonene (15.3%), whereas limonene (11.16%) and α-pinene (19.64%) were the major compounds for leaves and aerial stems from A. robusta, respectively. The major compound for the underground organs was α-pinene, in both species and phenological...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aldama arenaria; Aldama robusta; Viguiera; Phenological phases; Terpenes; Vegetative organs.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501899
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Triterpenes of leaves from Piranhea trifoliata (Picrodendraceae) Acta Amazonica
JEFFREYS,Manoel Feitosa; NUNEZ,Cecilia Veronica.
ABSTRACT The Amazon forest is rich in plant species diversity, among them,Piranhea trifoliata stands out, which is popularly known as piranheira, because their fruits are eaten by fish. Their barks are used as bath composition on uterus inflammation and as tea in malaria treatment. This study aimed to fractionate the dichloromethane and dichloromethane phase from methanolic extract of leaves of Piranhea trifoliata. The leaves were dried, grounded and extracted with dichloromethane, methanol and water. The methanol extract was partitioned with dichloromethane and ethyl acetate. The chromatographic fractionation yielded six pentacyclic triterpenoids: friedelan-3-one, 28-hydroxy-friedelan-3-one, 30-hydroxy-friedelan-3-one, lupeol, α- and β-amyrin mixture,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon Forest; NMR analysis; Steroids; Terpenes.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000200189
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