Brassica vegetables possess high levels of antioxidant metabolites associated with beneficial health effects including vitamins, carotenoids, anthocyanins, soluble sugars and phenolics. Until now, no reports have been documented on the genetic basis of the antioxidant activity (AA) in Brassicas and the content of metabolites with AA like phenolics, anthocyanins and carotenoids. For this reason,...

OBJECTIVES To evaluate the hypoglycemic and anti-diabetic activity of chloroform extract of Calotropis gigantea leaves and flowers in normal rats and streptozotocin induced diabetes. METHODS The hypoglycemic activity in normal rats was carried out by treatment using chloroform extract of Calotropis gigantea leaf and flower 10, 20 and 50 mg/kg, orally. The oral glucose tolerance test was carri...

In this paper we propose an automatic recognition system for wild flowers. Two photos, one of the flower and one of the leaves taken from directly above or at a close angle of a single wild flower, were used as a single set. The objective (flower, leaf) is extracted from each image using a clustering method, then recognition is performed using a piecewise linear discriminant function after find...

During the initial vegetative phase, the Arabidopsis shoot meristem produces leaves with associated lateral shoots at its flanks, while the later reproductive phase is characterized by the formation of flowers. The LEAFY gene is an important element of the transition from the vegetative to the reproductive phase, as LEAFY is both necessary and sufficient for the initiation of individual flowers...

The present study was designed to evaluate relative contribution of different polyphenols (total phenolics, flavonoids, flavonols) and their antioxidants activities in aqueous extracts of different parts of some plants; Argemone mexicana, Datura metel, Calotropis procera, Thevetia peruviana, and Cannabis sativa. The antioxidants (total phenolics, flavonoids, flavones) were determined by chemica...

Background:α-Glucosidase Inhibition can significantly prevent glucose uptake after meal, and helps in controlling of some adverse effects in diabetics. So determination of α-Glucosidase inhibitory effect and antioxidant activity of the Haplophyllum acutifolium and Ferula haussknechtii aerial organs was the aim of this study.Methods:Inhibitory effect of hexane extracts from dif...

Background:α-Glucosidase Inhibition can significantly prevent glucose uptake after meal, and helps in controlling of some adverse effects in diabetics. So determination of α-Glucosidase inhibitory effect and antioxidant activity of the Haplophyllum acutifolium and Ferula haussknechtii aerial organs was the aim of this study.Methods:Inhibitory effect of hexane extracts from dif...

Intra- and interspecific variation in flower color is a hallmark of angiosperm diversity. The evolutionary forces underlying the variety of flower colors can be nearly as diverse as the colors themselves. In addition to pollinator preferences, non-pollinator agents of selection can have a major influence on the evolution of flower color polymorphisms, especially when the pigments in question ar...

A cDNA clone encoding a lipase that is up-regulated in senescing leaves and flower petals has been isolated by screening an expression library. The abundance of the lipase mRNA increases as flowers and leaves begin to senesce, and expression of the gene is also induced by treatment with ethylene. Transgenic Arabidopsis plants in which levels of the senescence-induced lipase protein have been re...

The present investigation was carried out to determine the nutritional and functional properties of T. cucumerina. Water extracts of freeze dried flowers, fruits, and leaves of T. cucumerina were evaluated for their total phenolic content (TPC), total flavonoid content (TFC), antioxidant activity, α-amylase inhibitory activity, and fiber and mineral contents. Antioxidant activity, TPC, and TFC ...