Results 111 to 120 of about 14,482 (229)

Sesquiterpene Lactones from Staehelina fruticosa

open access: yesJournal of Natural Products, 2008
The phytochemical analysis of Staehelina fruticosa led to the isolation of four germacranolide-type sesquiterpene lactones (1- 4), including two new glycosides. The structures of these sesquiterpene lactones were elucidated using spectroscopic techniques, and enzymatic hydrolysis was carried out to confirm the nature of the two glycoside derivatives ...
Kotsos, M.P.   +4 more
openaire   +3 more sources

Identification, functional characterization and developmental regulation of sesquiterpene synthases from sunflower capitate glandular trichomes

open access: yesBMC Plant Biology, 2009
Background Sesquiterpene lactones are characteristic metabolites of Asteraceae (or Compositae) which often display potent bioactivities and are sequestered in specialized organs such as laticifers, resin ducts, and trichomes.
Ro Dae-Kyun   +3 more
doaj   +1 more source

Plasmodium transmission blocking activities of Vernonia amygdalina extracts and isolated compounds [PDF]

open access: yes, 2015
BACKGROUND: Medicinal plants are a validated source for discovery of new leads and standardized herbal medicines. The aim of this study was to assess the activity of Vernonia amygdalina leaf extracts and isolated compounds against gametocytes and ...
ABAY, SOLOMON MEQUANENTE   +16 more
core   +2 more sources

Sesquiterpene lactones from Picris pauciflora Willd.

open access: yesActa Societatis Botanicorum Poloniae, 2014
The aerial parts of Picris pauciflora Willd. (Asteraceae) yielded 11β, 13-dihydrolactucin, while the roots of the plant afforded 3-β-D-glucopyranosides of 11β, 13-dihydrozaluzanin C and 9α-hydroxy-11β, 13-dihydrozaluzanin C (ixerin F).
Wanda Kisiel
doaj   +1 more source

Effect of the environment on the secondary metabolic profile of Tithonia diversifolia : a model for environmental metabolomics of plants [PDF]

open access: yes, 2016
Tithonia diversifolia is an invasive weed commonly found in tropical ecosystems. In this work, we investigate the influence of different abiotic environmental factors on the plant's metabolite profile by multivariate statistical analyses of spectral data
Da Costa, Fernando Batista   +2 more
core   +1 more source

Root constituents of Lactuca sibirica and a comparison of metabolite profiles of L. sibirica and L. tatarica

open access: yesActa Societatis Botanicorum Poloniae, 2011
Nine known sesquiterpene lactones, including four lactucin-type guaianolides, four costuslactone-type guaianolides and one germacranolide, were isolated from roots of Lactuca sibirica (Asteraceae), six of which were glycoside derivatives.
Wanda Kisiel, Klaudia Michalska
doaj   +1 more source

Smallanthus macroscyphus: a new source of antidiabetic compounds [PDF]

open access: yes, 2013
The aim of the present study was to analyze the in vivo hypoglycaemic effects of both decoction of Smallanthus macroscyphus leaves and pure crystalline polymatin A isolated from its leaves.
Cabrera, Wilfredo   +8 more
core   +1 more source

New Sesquiterpenenoids from Ainsliaea yunnanensis

open access: yesMolecules, 2016
Investigation of the ethanol extract of the whole plant of Ainsliaea yunnanensis led to the isolation of four new dimeric sesquiterpene lactones, ainsliadimer F–I (1–4), together with seven known dimeric sesquiterpene lactones (5–11) and ten ...
Xiang-Lei Wu   +6 more
doaj   +1 more source

Terzyme: a tool for identification and analysis of the plant terpenome. [PDF]

open access: yes, 2018
BACKGROUND: Terpenoid hydrocarbons represent the largest and most ancient group of phytochemicals, such that the entire chemical library of a plant is often referred to as its 'terpenome'.

core   +3 more sources

A mini-review on the most important effective medicinal plants to treat hypertension in ethnobotanical evidence of Iran. [PDF]

open access: yes, 2016
Nowadays, cardiovascular diseases are highly prevalent in human communities. Hypertension is a multifactorial disease which causes a mortality twice higher than general population.
Asadi-Samani, Majid.   +1 more
core  

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