[A new peptide alkaloid from Discaria febrifuga Mart].

Dichroa Febrifuga and a Synthetic Hydrangea Alkaloid in Malaria

Two new tropane alkaloids from the bark of Erythroxylum vacciniifolium Mart. (Erythroxylaceae).

Two new tropane alkaloid N-oxides substituted by a methylpyrrole moiety were isolated from the bark of Erythroxylum vacciniifolium Mart. (Erythroxylaceae), a Brazilian indigenous plant, locally known as catuaba and used in traditional medicine as an aphrodisiac. The alkaloid structures were determined by a combination of high resolution mass spectrometry and multi-dimensional NMR spectroscopy.

Antimicrobial activity of Amaranth Alkaloid against pathogenic microbes

Plant defensive metabolite Alkaloid were screened for analyzing their antimicrobial property. The present study quantified the alkaloids present in selected members of tribe Amarantheae. Maximum percentage of alkaloids are shown by Amaranthus tricolor L., Aamaranthus viridis L. and Amaranthus caudatus L. (88.8%) and the least were shown by Amaranthus spinosus L. and Amaranthus dubius Mart. (5.8...

Resprouting from roots in four Brazilian tree species.

Previous studies pointed out that species richness and high density values within the Leguminosae in Brazilian forest fragments affected by fire could be due, at least partially, to the high incidence of root sprouting in this family. However, there are few studies of the factors that induce root sprouting in woody plants after disturbance. We investigated the bud formation on root cuttings, an...

A New Record of Diderma (Myxomycetes) from Turkey

Turkey is a favourite place for the growth and the development of myxomycete due to its climatic conditions and flora. During routine field trips to several locations of Gökçeada (Çanakkale), which is the largest island of Turkey, numerous samples of myxomycetes were collected. According to the available checklists, Diderma effusum (Schw.) Morgan records for the first time from Turkey. It has b...