Search results for "Clusiaceae"

showing 4 items of 4 documents

Phytochemical profiles, phototoxic and antioxidant properties of eleven Hypericum species - A comparative study

2018

Hypericum is one out of the nine genera belonging to the botanical family Clusiaceae Lindl (syn. Hypericaceae Juss.; APG III, 2009). The genus contains 484 species spread worldwide, one of which, Hypericum perforatum, is largely used in folk medicine. The aim of this study was to evaluate the chemical composition, along with the antioxidant and phototoxic activity, of 11 Hypericum species grown in Sicily (H. perforatum L., H. aegypticum L., H. androsaemum L., H. calycinum L., H. hircinum L., H. hirsutum L., H. montanum L., H. patulum Thunb., H. perfoliatum L., H. pubescens Boiss., H. tetrapterum Fr.). Samples of flowering tops collected from these Hypericum species were extracted and analys…

0106 biological sciencesDPPHHyperforinAntioxidants Hyperforin Hypericin Hypericum species (Clusiaceae Lindl.) Phototoxicity; PolyphenolsPhytochemicalsHypericinFlowersPlant ScienceHorticultureHypericaceae01 natural sciencesBiochemistryAntioxidantsMass SpectrometryPhototoxicityMicechemistry.chemical_compoundPicratesSpecies SpecificityHypericum species (Clusiaceae Lindl.) Phototoxicity Polyphenols Hypericin Hyperforin AntioxidantsAnimalsHypericum species (Clusiaceae Lindl.)Molecular BiologyChromatography High Pressure LiquidbiologyTraditional medicine010405 organic chemistryChemistryBiphenyl CompoundsPolyphenolsHypericum perforatumGeneral MedicineFibroblastsbiology.organism_classificationSettore AGR/02 - Agronomia E Coltivazioni Erbacee0104 chemical sciencesHypericinHyperforinPhotochemotherapyPhytochemicalPolyphenolNIH 3T3 CellsAntioxidantReactive Oxygen SpeciesHypericumHypericumDermatitis Phototoxic010606 plant biology & botany
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Leaf and stem anatomy in eight Hypericum species (Clusiaceae).

2013

Abstract - Foliar micromorphology, epicuticular wax morphology and anatomical features of leaves and stem, particularly secondary xylem, were examined with light microscopy, general and histochemical staining and scanning electron microscopy in eight Hypericum species. Outer tegument tissue and type of secondary xylem are determining characteristics. Secondary xylem is ring-porous in H. perforatum, H. perfoliatum, H. tetrapterum, H. triquetrifolium, H. androsaemum and H. hircinum. In H. aegypticum and H. pubescens xylem is diffuse-porous, which is considered to be a more primitive type. These characteristics may be considered an additional criterion for species identification.

Hypericum speciesbiologyXylemClusiaceaePlant ScienceAnatomyViral tegumentbiology.organism_classificationAnatomy epiderma epicuticular wax Hypericum morphology SEM stem xylemHistochemical stainingepicuticular waxEpicuticular waxepidermaBotanymorphologySEMSpecies identificationxyemstemAnatomyHypericumEcology Evolution Behavior and SystematicsHypericumAnatomy; epiderma; epicuticular wax; Hypericum; morphology; SEM; stem; xylem
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A further analysis of secretory structures of some taxa belonging to the genus Hypericum (Clusiaceae) in relation to the leaf vascular pattern

2014

This work extends knowledge about the distribution of secretory structures (black nodules, translucent glands, and type A and B secretory canals) to other species of the genus Hypericum L., as only H. perforatum L. appears to have been widely investigated. Moreover, the current study was extended to include leaf vascular patterns. In the species studied, a possible correlation between the presence of black nodules and a particular biological form, that of hemicryptophytes scapose perennials such as H. perfoliatum L., H. perforatum L., H. pubescens Boiss., H. tetrapterum Fr., and H. triquetrifolium Turra, was noted. These black nodules are not present in H. androsaemum L. and H. hircinum L.,…

Perennial plantbiologyXylemClusiaceaePlant Scienceblack nodulebiology.organism_classificationTetrapterumTaxonsecretory canalKey words: Hypericumleaf vascular patternblack nodulessecretory canalstranslucent glandsGenustranslucent glandsBotanyHypericum leaf vascular pattern black nodules secretory canals translucent glandsleaf vascular patternHypericumHypericum
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Screening of tropical medicinal plants for antiinflammatory activity

1995

The antiinflammatory activity of different extracts from 16 tropical plant species belonging to 15 different families has been determined. They were administered topically on TPA-induced mouse ear oedema and orally on carrageenan-induced mouse paw oedema. In the latter, extracts from Diospyros leucomelas, Erythrospermum monticolumn, Ficus polita, Heteromorpha trifoliata, Hypericum lalandii, Kirkia acuminata, Pterocarpus angolensis and Zanha africana significantly reduced the oedema 3 h after carrageenan injection. All the extracts were considerably active when assayed topically with only three exceptions.

Pharmacologyfood.ingredientbiologyTraditional medicineClusiaceaeDiospyrosbiology.organism_classificationMoraceaefoodSimaroubaceaeMedicinal plantsHypericumEbenaceaeHeteromorphaPhytotherapy Research
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