In the course of a polyphasic study it was observed that ‘Dactylosporangium variesporum’ NRRL B-16296 is misclassified in the genus Dactylosporangium as it exhibits properties consistent with its assignment to the genus Saccharothrix. Phylogenetic analyses based on 16S rRNA gene sequences show that the strain falls within the evolutionary radiation of the genus Saccharothrix, a result which is ...

The quassinoids are a group of complex, highly oxygenated, degraded triterpene mostly found in Simaroubaceae family. Two quassinoids (degraded triterpenes), 1 and 2 were isolated first time from the stem bark of Ailanthus excelsa. Compound 1 is C19 quassinoid. C19 quassinoid derived biogenetically from a C20 quassinoid, via a 1,2 – dioxo derivative. The structural elucidation is based on the an...

The genus Micromonospora Ørskov 1923 belongs to the family Micromonosporaceae (Stackebrandt et al., 1997) and currently encompasses 18 validly described species (the type strain NTCT 4582 of Micromonospora gallica is not available any longer, Kawamoto, 1989), including the recently described species M. eburnea, M. aurantinigra, M. endolithica and M. mirobrigensis (Hirsch et al., 2004; Thawai et...

The essential root oils of the Pimpinella saxifraga subspecies eusaxifraga, alpestris and nigra were investigated by means of capillary GC and spectroscopic methods. A total of 48 components was identified. Characteristic constituents of all oils are pseudoisoeugenol derivatives, sesquiterpenoids and trinor-sesquiterpene hydrocarbons, but the qualitative and quantitative patterns of the individ...

BACKGROUND Rhodiola plants are used as a natural remedy in the western world and as a traditional herbal medicine in China, and are valued for their ability to enhance human resistance to stress or fatigue and to promote longevity. Due to the morphological similarities among different species, the identification of the genus remains somewhat controversial, which may affect their safety and effe...

Article history: Received on: 25/04/2016 Revised on: 11/05/2016 Accepted on: 08/06/2016 Available online: 30/08/2016 Strain VE2 was isolated from the stem tissue of Vernonia cinerea (L.) Less. and identified as Streptomyces sp. on the basis of morphology, chemotaxonomy and 16SrDNA sequencing. The fractionation of the crude ethyl acetate (CEA) extract from VE2 cultures led to the isolation of tw...

Marine sponges are exceptionally prolific sources of natural products for the discovery and development new drugs. Until now, have contributed around 30% all metabolites isolated from marine environment. Family Latrunculiidae Topsent, 1922 (class Demospongiae Sollas, 1885, order Poecilosclerida 1928) is a small sponge family comprising seven genera. Latrunculid recognized as major reservoirs di...