Results 91 to 100 of about 381 (123)
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Anticoagulant effect and action mechanism of sulphated flavonoids from Flaveria bidentis
Thrombosis Research, 2002Quercetin 3-acetyl-7,3',4'-trisulphate (ATS) and quercetin 3,7,3',4'-tetrasulphate (QTS) obtained from Flaveria bidentis (Asteraceae) were investigated in vitro for anticoagulant activity. Three different concentrations of each flavonoid were assayed at different incubation times, showing at 1 mM significant prolongation on the activated partial ...
Hugo A, Guglielmone +3 more
exaly +3 more sources
Inhibitory effects of sulphated flavonoids isolated from Flaveria bidentis on platelet aggregation
Thrombosis Research, 2005 Flaveria bidentis is a plant species that has as major constituents sulphated flavonoids in the highest degree of sulphatation. Among them, quercetin 3,7,3',4'-tetrasulphate (QTS) and quercetin 3-acetyl-7,3',4'-trisulphate (ATS) are the most important constituents. Both showed anticoagulant properties. The objective of the present study was to evaluate
Guglielmone, Hugo +3 more
exaly +4 more sources
Coastal Plain Yellowtops Flaveria bidentis (L.) Kuntze
2017The coastal plain yellowtops, Flaveria bidentis (L.) Kuntze, a C4 annual or perennial herb native to South America, has damaged local ecosystems and caused great economic loss in China. Its large seeds, strong ability to adapt to different environmental conditions and strong allelopathy to inhibit the growth of other plants lead to its expansion to ...
Fengjuan Zhang, Fanghao Wan
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Quercetin 3,7,3′-trisulphate from Flaveria bidentis
Phytochemistry, 1985Abstract From leaves of Flaveria bidentis a new quercetin trisulphate was isolated and characterized as quercetin 3,7,3′-trisulphate by means of spectroscopic (UV, 1 H NMR, 13 C NMR) and chemical methods.
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The roles of malate and aspartate in C4 photosynthetic metabolism of Flaveria bidentis (L.)
Planta, 1996In C4 grasses belonging to the NADP-malic enzyme-type subgroup, malate is considered to be the predominant C4 acid metabolized during C4 photosynthesis, and the bundle sheath cell chloroplasts contain very little photosystem-II (PSII) activity. The present studies showed that Flaveria bidentis (L.), an NADP-malic enzyme-type C4 dicotyledon, had ...
Michaela Meister +2 more
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Plant and Soil, 2020
Our aim was to determine whether there is a synergistic interaction between the arbuscular mycorrhizal (AM) fungus Rhizoglomus intraradices and the bacterium Brevibacterium frigoritolerans, and to understand how R. intraradices and B. frigoritolerans affect the competitive growth of Flaveria bidentis (L.) Kuntze in nutrient-deficient soil.
Ewei Du +5 more
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Our aim was to determine whether there is a synergistic interaction between the arbuscular mycorrhizal (AM) fungus Rhizoglomus intraradices and the bacterium Brevibacterium frigoritolerans, and to understand how R. intraradices and B. frigoritolerans affect the competitive growth of Flaveria bidentis (L.) Kuntze in nutrient-deficient soil.
Ewei Du +5 more
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Effects of water stress and fungicide on the growth and drought resistance ofFlaveria bidentis
Acta Ecologica Sinica, 2013Flaveria bidentis,an exotic plant with strong invasiveness,spreads at most regions of Tianjin,Hebei,Henan and Shandong Province,China,and many evidences prove that it has high potential to expand to other provinces.According to recent studies,F.bidentis is a typical species with arbuscular mycorrhizal(AM) symbiosis and AM symbiosis can alter host plant-
陈冬青 CHEN Dongqing +4 more
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Biological Invasions, 2016
Plants differ in their capacity to use various forms of nitrogen (N). Although previous studies have suggested invasive plants alter N availability, few distinguish their responses to various forms and different concentrations of inorganic N. In order to understand how plant preference for N affects invasions, we tested the growth and physiological ...
Chaohe Huangfu +5 more
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Plants differ in their capacity to use various forms of nitrogen (N). Although previous studies have suggested invasive plants alter N availability, few distinguish their responses to various forms and different concentrations of inorganic N. In order to understand how plant preference for N affects invasions, we tested the growth and physiological ...
Chaohe Huangfu +5 more
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Genome, 1996
Two nucleoside diphosphate kinase cDNA clones have been isolated from Flaveria bidentis by immunoscreening of an expression library with a polyclonal antibody raised against Flaveria chloraefolia flavonol 3-sulfotransferase (F3-ST). The clones represent members of a small multigene family in this species. The nucleotide sequences of the two cDNA clones
S, Ananvoranich +2 more
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Two nucleoside diphosphate kinase cDNA clones have been isolated from Flaveria bidentis by immunoscreening of an expression library with a polyclonal antibody raised against Flaveria chloraefolia flavonol 3-sulfotransferase (F3-ST). The clones represent members of a small multigene family in this species. The nucleotide sequences of the two cDNA clones
S, Ananvoranich +2 more
openaire +2 more sources