Both competition and burial are important factors that influence plant growth and structuring plant communities. Competition intensity may decline with increased burial stress. However, experimental evidence is scarce. The aim of this study was to elucidate the role of burial stress in influencing plant competition by investigating biomass accumulation, biomass allocation, and clonal growth per...

in this study, the relationship among four species of polygonum (including p. hyrcanicum (three samples), p. persicaria, p. avicular, and p. hydropiper) was investigated by gc profiling. furthermore, the major compounds of the ethylic ether extract of p. hyrcanicum were identified by gc/ms as: α-bisabolol (17.5%), cedrol (15.9%), sesquisabinene hydrate (13.0%), α-elemol (10.5%) and trans-longip...

Persicaria hydropiper (L.) Delarbre, belonging to Polygonaceae family, is a common weed found in most of the temperate countries including Bangladesh, China, Malaysia, and Japan. The plant is also referred to as "marsh pepper" or "smart weed." It appears to be a useful herb with evidence-based medicinal properties. The present work addresses the botanical description, traditional uses, phytoche...

Extracts of Polygonum hydropiper leaves in Methanol was introduced to the 3rd and 4th instar larvae Aedes aegypti with various concentration (.25–1.5 μg/ml). Insecticidal assays data showed significant mortality against larvae. The LC50 LC90 value after 24 hours exposure 0.002 0.47 μg/ml respectively. As predicted result that larvicidal activity P. on Ae. dose reliant. clearly exhibited methano...

To determine the potential utility of Polygonum hydropiper (tade) as an anti-dementia functional food, the present study assessed the acetylcholinesterase inhibitory and anti-inflammatory activities of tade crude extracts in human cells. Crude extracts of tade were obtained by homogenizing tade in distilled water and then heating the resulting crude extracts. The hot aqueous extracts were purif...

Adaptive differences among species are often thought to result from developmentally constant trait differences that enhance fitness in alternative environments. Species differences in patterns of individual phenotypic plasticity can also have ecological consequences. Indeed, functionally related constant and plastic traits may interact to determine the phenotype’s adaptive value in particular c...

BACKGROUND We investigated Polygonum hydropiper L. (P. hydropiper) for phenolic contents, antioxidant, anticholinesterase activities, in an attempt to rationalize its use in neurological disorders. METHODS Plant crude extract (Ph.Cr), its subsequent fractions: n-hexane (Ph.Hex), chloroform (Ph.Chf), ethyl acetate (Ph.EtAc), n-Butanol (Ph.Bt), aqueous (Ph.Aq) and saponins (Ph.Sp) were evaluate...

Factors promoting the evolution of specialists versus generalists have been little studied in ecological context. In a large-scale comparative field experiment, we studied genotypes from naturally evolved populations of a closely related generalist/specialist species pair (Polygonum persicaria and P. hydropiper), reciprocally transplanting replicates of multiple lines into open and partially sh...

In this study, the relationship among four species of Polygonum (including P. hyrcanicum (three samples), P. persicaria, P. avicular, and P. hydropiper) was investigated by GC profiling. Furthermore, the major compounds of the ethylic ether extract of P. hyrcanicum were identified by GC/MS as: -bisabolol (17.5%), cedrol (15.9%), sesquisabinene hydrate (13.0%), -elemol (10.5%) and trans-longipin...

BACKGROUND The emergence of multidrug resistant (MDR) pathogens is of great concern to the global health community. Our ability to effectively treat diseases is based on the discovery of potent drugs for the treatment of these challenging diseases. Traditional medicines are one of the major sources for the discovery of safe, effective and economical drug candidates. In order to validate its ant...