نتایج جستجو برای: helichrysum pseudoplicatum
تعداد نتایج: 307 فیلتر نتایج به سال:
In the present study, lectotypes for 12 names viz. Anaphalis beddomei Hook.f., bournei Fyson, elliptica DC., oblonga var. lawii meeboldii W.W.Sm., travancorica Gnaphalium marcescens Wight, neelgherryanum subdecurrens wightianum DC. and Helichrysum leptophyllum are designated. Detailed notes images of type specimens provided.
We evaluated the in vitro antioxidant property and phytochemical constituents of the aqueous crude leaf extract of Helichrysum pedunculatum. The scavenging activity on superoxide anions, DPPH, H₂O₂, NO and ABTS; and the reducing power were determined, as well as the flavonoid, proanthocyanidin and phenolic contents of the extract. The extract exhibited scavenging activity towards all radicals t...
طی مطالعه تبار اینوله در هرباریوم مؤسسه گیاهشناسی ارمنستان سه گونه جدید زیر برای فلور ارمنستان شناسایی شدند: Filago desertorum Pomel، Helichrysum davisianum Rech. f. وGnaphalium stewartii C. B. Clarke ex Hook. f. این گونهها با گونههای نزدیک خود مقایسه میشوند. نقشه پراکنش و تصاویر آنها نیز ارائه میگردد.
The chemical composition of the essential oil of Helichrysum italicum (Roth) Don ssp. italicum, collected in the National Park of Cilento and Diano Valley, Southern Italy, was studied by means of GC and GC/MS. Forty four compounds of 45 constituents were identified in the oil, mainly oxygenated sesquiterpenes. The essential oil was evaluated for its potential in vitro phytotoxic activity agains...
DNA topoisomerases are important targets for cancer chemotherapy. We investigated the effects of a methanolic extract of Helichrysum pamphylicum on mammalian DNA topoisomerase I via in vitro plasmid supercoil relaxation assays. The extracts manifested a considerable inhibition of the enzyme's activity in a dose-dependent manner. We also performed a HPLC analysis to identify the flavonoid conten...
The leaves of Helichrysum pedunculafum and H. longifolium are used for the treatment of wounds arising from male circumcision by the Xhosas and the Pandas of South Africa, respect ively. The an tibacterial activity of these herbs was compared by direct bioautography using Staphylococcus aureus. Extracts from the leaves of H. pedunculafum showed more activity against the bacterium than those fro...
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