the present study was conducted to quantify the density and abundance of weeds in wheat fields of south khorasan province during 2010 and 56 species of weed form 16 plant families were identified in 240 farms of eight towns around this province. the most families in number of species were pertaining to poaceae, asteraceae and chenopodiaceae with 15 (26.79%), nine (16.7%), six (10.71%) and six (...

The account of genus Polygonum L. in "Flora of Armenia" was made more than five decades ago. After that many expeditions have been carried out in different regions of Armenia and a huge herbarium material has been collected. The genus included 5 sections with 20 species. Since then many authors accepted the sections as separate genera on the basis of anatomical, morphological, palynological and...

Background: The study was aimed to evaluate the anti-inflammatory activity of ethanolic and aqueous extracts of Polygonum minus (Huds) using in vitro and in vivo approaches. Methods: The in vitro tests used to evaluate ethanolic extract are cyclooxygenase-1 (COX-1), cyclooxygenase-2 (COX-2), lipooxygenase (5-LOX), secretory phospholipase-A2 (sPLA2) inhibition assay whilst the in-vivo effect was...

Plant secondary metabolites play significant roles in plant-environment interactions. Plant derived secondary metabolites are compounds that can be widely used in industry, medicine, food sciences etc. In this review, we summarize the research methods applied to analyse biosynthetic pathways of plant secondary metabolites. Moreover we present an up to date overview of the studies that were perf...

Persicaria genus in Turkish Mad?makgiller or Buckwheat family (Polygonaceae) is included the Polygonum now. Today, separated from Polygonum. In this study, Pe. hydropiperoides belonging to given as a new species for flora of Turkey. Specimens were collected Sancaktepe/ Pa?aköy (Istanbul). Adding species, number Flora reached 12 (13 taxa). Additionally, name, detailed description, locality data,...