Diarrhea is one of the most common causes death in young piglets. Porcine rotavirus (PoRV) belongs to genus Rotavirus within family Reoviridae, and considered be primary pathogen causing diarrhea Portulaca oleracea L. (POL) has been reported alleviate viral infections. However, antiviral effect polysaccharide (POL-P), an active component POL, on PoRV infection remains unclear. This study demons...

The Portulaca oleracea L. (Portulacaceae) is a cosmopolitan species with a wide range of biological activities, including antioxidant and neuroprotective actions. We investigated the effects of P. oleracea extracts in a 6-hydroxydopamine rat model of Parkinson's disease, a debilitating disorder without effective treatments. Chemical profiles of aqueous and ethanolic extracts of whole plant were...

A new tricyclic alkaloid named portulacatone (1), i.e., 5,6-dihydro-8,9-dihydroxy-11H-pyrrolo[2,1b] [3]benzazepin-11-one, together with eight known compounds, methyl 4-hydroxyphenylacetate (2), phydroxybenzaldehyde (3), vanillin (4), protocatechualdehyde (5), p-hydroxybenzoic acid (6), iseluxine (7), oleracein E (8), and (þ)-(R)-feruloyl malate (9) were isolated from aerial parts of Portulaca o...

Experiments were conducted to test several methods for estimating low temperature thresholds for seed germination. Temperature responses of nine weeds common in annual agroecosystems were assessed in temperature gradient experiments. Species included summer annuals (Amaranthus albus, A. palmeri, Digitaria sanguinalis, Echinochloa crus-galli, Portulaca oleracea, and Setaria glauca), winter annua...

Portulaca oleracea L. is a medicinal plant find in Europe and Asia. This plant contains valuable secondary metabolite such as noradrenalin. Naturally the wild plant produce small amount of this secondary metabolites so induction of hairy roots can be useful to increase its production. In our research Agrobacterium rhizogenes strain AR15834 was used to induce hairy roots in the two-week leaf exp...

Crassulacean acid metabolism (CAM) was investigated in leaves and stems of the succulent C(4) dicot Portulaca oleracea L. Diurnal acid fluctuations, CO(2) gas exchange, and leaf resistance were monitored under various photoperiod and watering regimes. No CAM activity was seen in well watered plants grown under 16-hour days. Under 8-hour days, however, well watered plants showed a CAM-like patte...