abstract in order to investigate the response of two species of p. ovata and p. psyllium to water deficit. the experiment was conducted during 2009 growing seasons in the agriculture research station ferdowsi of mashhad. for this purpose a split plot experiment based on complete randomized block design with three replications was used. four irrigation levels (4000, 3000, 2000, 1000 m3/ha) alloc...

Background: Psyllium husk has been used for treating gastrointestinal upsets like diarrhea, constipation and irritable bowel disease in the past. Recent medical researches have shown remarkable effects of psyllium husk on all parameters of lipid profile, except triglycerides and very low density lipoproteins. Objective: This study was conducted to determine the effects of psyllium husk on lipid...

BACKGROUND Treatment of chronic constipation remains challenging with 50% of patients dissatisfied with current therapy. There is an unmet need for natural and safe alternatives. Dried plums (prunes) have been used traditionally for constipation but their efficacy is not known. Aim To assess and compare the effects of dried plums and psyllium in patients with chronic constipation. METHODS Sub...

In a complex soil environment, competitive and environmental factors interact with individual traits to influence plant’s root growth patterns ability compete for resources. Here, we examine how of focal plant, Plantago lanceolata L., responds resource heterogeneity presence two neighbor species, Centaurea jacea L.and Poa pratensis L. A full factorial experiment tested the effects nutrient hete...

BACKGROUND AND AIMS Parasitism is well understood to have wide-ranging deleterious effects on host performance in species thus far characterized. Photosynthetic performance reductions have been noted in the Striga-Zea mays association; however, no such information exists for facultative hemiparasitic plants and their hosts, nor are the effects of host species understood. METHODS Chlorophyll f...

Methanolic extracts from seven Plantago species used in traditional medicine for the treatment of cancer, were evaluated for cytotoxic activity against three human cancer cell lines recommended by the National Cancer Institute (NCI, USA). The results showed that Plantago species exhibited cytotoxic activity, showing a certain degree of selectivity against the tested cells in culture. Since the ...

Traditional medicines by medicinal plants have always played a key role in world health including Iran buttheir safety profile is a major concern in this regard. In fact some factors such as the method of extraction,contamination with microorganisms, existence of heavy metals, and pesticides may reduce the safety ofherbal based pharmaceutical products. The objective of this research was to dete...