Secondary Metabolites
Mostrando 13-24 de 558 artigos, teses e dissertações.
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13. ISOFLAVONOIDES DA TRIBO DALBERGIEAE: UMA CONTRIBUIÇÃO QUIMIOSSISTEMÁTICA PARA A SUBFAMÍLIA PAPILIONOIDEAE
Plants from Fabaceae family have several secondary metabolites and high biological potential. The subfamily Papilionoideae (Fabaceae) has 28 tribes, of which Dalbergieae comprises 49 genera and 1325 species. Isoflavonoids are chemotaxonomic markers of Papilionoideae and have important biological properties. This review describes the isoflavonoids and biologi
Quím. Nova. Publicado em: 2020-09
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14. Methyl jasmonate modulation reduces photosynthesis and induces synthesis of phenolic compounds in sweet potatoes subjected to drought
ABSTRACT Sweet potato [Ipomoea batatas (L.) Lam.] has wide adaptability to different climatic conditions. However, its yield can be affected by prolonged periods of drought. Application of exogenous jasmonates can modulate several physiological and biochemical processes, improving plant tolerance to abiotic stress. This study sought to evaluate the role of e
Bragantia. Publicado em: 2020-09
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15. Pumilacidins A-E from Sediment-Derived Bacterium Bacillus sp. 4040 an Their Antimicrobial Activity Evaluation
Marine strains of Bacillus are known to produce secondary metabolites different from that accumulated by their terrestrial counterparts, for example, lipopeptides such as surfactins, iturins and fengycins, which exhibit a variety of biological activities. Another important class of lipopeptides are pumilacidins, identified specially from Bacillus pumilus str
J. Braz. Chem. Soc.. Publicado em: 2020-02
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16. Antimicrobial activity of actinomycetes and characterization of actinomycin-producing strain KRG-1 isolated from Karoo, South Africa
In the present study we reported the antimicrobial activity of actinomycetes isolated from aridic soil sample collected in Karoo, South Africa. Eighty-six actinomycete strains were isolated and purified, out of them thirty-four morphologically different strains were tested for antimicrobial activity. Among 35 isolates, 10 (28.57%) showed both antibacterial a
Braz. J. Pharm. Sci.. Publicado em: 20/12/2019
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17. Phytotoxic potential of aqueous leaf extract of Tocoyena formosa and Rudgea viburnoides
ABSTRACT Plants have organic components produced as secondary metabolites able to positively or negatively interfere on normal development of other species. The objective of this research was to determine the phytotoxic effect of aqueous leaf extract from two species Rubiaceae family: Tocoyena formosa and Rudgea viburnoides on the germination and initial dev
Rev. Ceres. Publicado em: 11/11/2019
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18. Structure and Absolute Configuration of Secondary Metabolites from Two Strains of Streptomyces chartreusis Associated with Attine Ants
The antibiotic streptazolin (1), its E-isomer (2), along with the stereoisomers strepchazolin A (3) and strepchazolin B (4) and the inorganic compound cyclooctasulfur (5) were produced in solid culture by Streptomyces chartreusis ICBG377, which was isolated from the fungal garden of the leaf-cutter ant Acromyrmex subterraneus brunneus. This is the first time
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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19. Turnip (Brassica Rapus L.): a natural health tonic
Resumo Além de nutrição básica, os alimentos baseados em plantas fornecem quantias substanciais de compostos bioativos que fornecem benefícios de saúde desejáveis. Durante a última década, metabólitos secundários, também conhecidos como fitoquímicos, obtidos de plantas, têm chamado muito a atenção dos pesquisadores. Entre estas plantas, o nab
Braz. J. Food Technol.. Publicado em: 24/10/2019
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20. Aspergillus niger: A Hundred Years of Contribution to the Natural Products Chemistry
Aspergillus niger is a phytopathogenic fungus responsible for the plant disease called “black mold”, and it is considered the most versatile microorganism for producing acids, proteins, and enzymes of industrial value, besides a variety of compounds of pharmacological interest. This review presents a century of contribution of A. niger in the natural pro
J. Braz. Chem. Soc.. Publicado em: 21/10/2019
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21. “Arnicas” from Brazil: comparative analysis among ten species
Abstract The “arnicas” found in Brazil are examples of different species of the family Asteraceae used in popular medicine for its attributed anti-inflammatory action. Among the species known and used as “arnica” we selected: Calea uniflora Less., Chaptalia nutans (L.) Polák, Lychnophora ericoides Mart., Lychnophora pinaster Mart., Lychnophora salic
Rev. bras. farmacogn.. Publicado em: 17/10/2019
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22. Phytochemical Analysis of Extracts from the Atlantic Forest Wood Species
ABSTRACT The extractives are responsible for some characteristics of wood, such as color, smell, natural resistance to rot, taste, and abrasive properties. In addition, its content and composition vary between wood species. The objective of this work was to present a phytochemical analysis of wood extractives of native species from the Atlantic Forest, aimin
Floresta Ambient.. Publicado em: 05/09/2019
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23. [PROVISIONAL] Genome sequence of Shewanella corallii strain A687 isolated from pufferfish (Sphoeroides spengleri)
Abstract We present here the genome sequence of Shewanella corallii strain A687 isolated from pufferfish Sphoeroides spengleri (Family Tetraodontidae). The assembly consists of 5,215,037 bp and contains 284 contigs, with a G+C content of 50.3%. The genus Shewanella comprises 67 recognized species. These bacteria are Gram-negative, rod-shaped, facultatively a
Genet. Mol. Biol.. Publicado em: 02/09/2019
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24. Effect of Salicylic Acid, 2,4-D and 2i-P on the Production of Secondary Metabolites in Garcinia brasiliensis Mart. Callus
Abstract The aim of this work was to evaluate the effect of Salicylic acid, 2,4-D and 2-iP on the production of total phenolic and flavonoids as well in the levels of fukugetin and 7-epiclusianone in callus of Garcinia brasiliensis zygotic embryos. For this, Bacupari callus were exposed to different concentrations (0.0; 0.1; 1; 10; 100 µM) of Salicylic acid
Braz. arch. biol. technol.. Publicado em: 29/08/2019