BACKGROUND Sonchus asper (SA) is traditionally used for the treatment of various ailments associated with liver, lungs and kidneys. This study was aimed to investigate the therapeutic potential of nonpolar (hexane, SAHE; ethyl acetate, SAEE and chloroform, SACE) and polar (methanol, SAME) crude extracts of the whole plant. METHODS To achieve these goals, several parameters including free-radi...

The paper presents the first data of an unreported plant community dominated by Hordeum leporinum Link and Bituminaria bituminosa (L.) Stirt. (class Stellarietea mediae R. Tx., Lohmeyer et Preising in R.Tx. 1950). It is currently established four localities region Black Sea coast, between town Ravda Nessebar, Bulgaria. Among characteristic features are: (i) it occupies places with active human ...

1 An experiment was carried out to test the hypotheses that in heterogeneous environments: (i) the size of species’ root systems will be negatively correlated with their ability to place roots precisely in nutrient-rich patches; (ii) precision of root placement will be less affected by distance to nutrient patches in species with large root systems; (iii) species with greater precision in root ...

The rate of absorption of water by roots of transpiring plants is in general closely dependent upon the rate of transpiration, and a change in the rate of transpiration is soon followed by a corresponding change in the rate of absorption (3). Since the rate of absorption lags behind and apparently is dependent on the rate of transpiration it is usually considered that under conditions such that...