Claviceps purpurea is an important food contaminant and well known for the production of the toxic ergot alkaloids. Apart from that, little is known about its secondary metabolism and not all toxic substances going along with the food contamination with Claviceps are known yet. We explored the metabolite profile of a gene cluster in C. purpurea with a high homology to gene clusters, which are r...

Echinacea is an herbaceous perennial of Asteraceae family that grows throughout the eastern and central United States and southern Canada. Three species of Echinacea are valued as medicinal herb: E. purpurea (L.) Moench, E. pallida (Nutt.) Nutt., and E. angustifolia DC (Mistríková & Vaverková, 2007). All three species show pharmacological activity, which appears to result from the combined effe...

Bauhinia purpurea is a flowering plant. General phytochemical screening of the aerial parts of Bauhinia purpurea revealed the presence of steroids, terpenes, phenolic compounds, saponins, fatty acids, alkaloids. The aim of this study is to identify and characterize the bioactive principle from the aerial parts of the plant. It has wide folk medicinal use. For isolation of the compound, the drie...

Estimating the potential of species to cope with rapid environmental climatic modifications is of vital importance for determining their future viability and conservation. The variation between existing populations along a climatic gradient may predict how a species will respond to future climate change. Stipa purpurea is a dominant grass species in the alpine steppe and meadow of the Qinghai-T...

BACKGROUND Ptycholobium is a genus related to Tephrosia which comprises only three species. Compared to Tephrosia, which has been phytochemically and pharmacologically studied, Ptycholobium species have only few or no reports on their chemical constituents. Moreover, no studies on the cytotoxic activities of its secondary metabolites have been previously documented. RESULTS From the non polar...

PREMISE OF THE STUDY Expressed sequence tag-simple sequence repeat (EST-SSR) markers were developed using Illumina sequencing for further genetic diversity studies of Stipa purpurea (Poaceae). METHODS AND RESULTS Twenty-nine polymorphic and eight monomorphic EST-SSR loci were developed and characterized in 90 individuals from nine S. purpurea populations. The number of alleles per locus range...

Extensive DNA sequencing of the chloroplast genome of the red alga Porphyra purpurea has resulted in the detection of more than 125 genes. Fifty-eight (approximately 46%) of these genes are not found on the chloroplast genomes of land plants. These include genes encoding 17 photosynthetic proteins, three tRNAs, and nine ribosomal proteins. In addition, nine genes encoding proteins related to bi...

Gentamicin, an aminoglycoside antibiotic, occurs both free in the fermentation filtrate and bound to the mycelium of the producing organism, Micromonospora purpurea. The bound gentamicin, which represents the major portion of the total quantity present in the fermentation broth, was released after exposure to acid, alkali, or sonic disruption. Washing the mycelium with distilled water, heat tre...

Echinacea angustifolia and E. purpurea are commonly used in North America for their anti-bacterial effects. Flos Lonicerae, Radix Scutellaria and Fructus Forsythiae are traditional Chinese medicinal herbs commonly used for the treatment of complaints such as pneumonia, acute upper respiratory tract infection, and acute bronchitis. A reproducible, simple, and reliable rapid resolution liquid chr...

Echinacea purpurea (L.) Moench, a top selling botanical medicine, is currently of considerable interest due to immunomodulatory, anti-inflammatory, antiviral and cannabinoid receptor 2 (CB2) binding activities of its alkylamide constituents. The purpose of these studies was to comprehensively profile the alkylamide (alkamide) content of E. purpurea root, and to compare yields of alkylamide cons...