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Open-top designs for manipulating field temperature in high-latitude ecosystems
Passive open-top devices have been proposed as a method to experimentally increase temperature in high-latitude ecosystems. There is, however, little documentation on the efficacy of these devices.Expand
The International Tundra Experiment (ITEX) is a collaborative, multisite experiment using a common temperature manipulation to examine variability in species response across climatic and geographicExpand
Anthelmintic screening of Zimbabwean plants traditionally used against schistosomiasis.
Extracts of 23 plant species used popularly against schistosomiasis in Zimbabwe were screened for their anthelmintic effect. Schistosomules of the trematode Schistosoma mansoni and cysticercoids ofExpand
Can phylogeny predict chemical diversity and potential medicinal activity of plants? A case study of amaryllidaceae
BackgroundDuring evolution, plants and other organisms have developed a diversity of chemical defences, leading to the evolution of various groups of specialized metabolites selected for theirExpand
Phylogenetic selection of Narcissus species for drug discovery
Plants are of immense importance in providing healthcare worldwide. With over 250 000 species of angiosperms alone, the potential for finding new medicinal plants and lead compounds for drugExpand
HPLC method validated for the simultaneous analysis of cichoric acid and alkamides in Echinacea purpurea plants and products.
A reversed-phase high-performance liquid chromatography (HPLC) method has been developed to determine caffeic acid derivatives, for example, cichoric acid, and alkamides in plant parts and herbalExpand
Synergistic antioxidative effects of alkamides, caffeic acid derivatives, and polysaccharide fractions from Echinacea purpurea on in vitro oxidation of human low-density lipoproteins.
Preparations of Echinacea are widely used as alternative remedies to prevent the common cold and infections in the upper respiratory tract. After extraction, fractionation, and isolation, theExpand
Novel inhibitory activity of the Staphylococcus aureus NorA efflux pump by a kaempferol rhamnoside isolated from Persea lingue Nees.
OBJECTIVES To isolate a plant-derived compound with efflux inhibitory activity towards the NorA transporter of Staphylococcus aureus. METHODS Bioassay-guided isolation was used, with inhibition ofExpand
Evolutionary aspects of caffeoyl ester distribution In Dicotyledons
Abstract In this review, the distribution of phenylpropanoic acids in dicotyledons is visualized by using the Dahlgren diagram. Notably derivatives of caffeic acid show a close correlation with theExpand
Food plant preferences by slugs and snails: A simple method to evaluate the relative palatability of the food plants
Food plant selection by herbivores is of major importance in relation to plant population dynamics and plant selection in natural ecosystems as well as to crop protection. Slugs and snails are ofExpand