the effects of salinity and supplied calcium chloride on growth and leaf ions concentration of tomato (lycopersicon esculentum l.) were investigated in gorgan, iran. a factorial experiment was conducted based on rcbd with four nacl levels (0, 50, 100, and 150 mm) and four cacl2 levels (0, 100, 200 and 300 mg l-1). data of growth, yield and leaf’s ca, k, and na content were subjected to analyze ...

Background: Juvenile idiopathic arthritis is the most common rheumatic disease in children, which includes a group of disorders that all have a common clinical manifestation of arthritis. The aim of this study was evaluation of the clinical and laboratory symptoms of children with idiopathic arthritis who treated with intravenous methylprednisolone pulse. Methods: This study is a descriptive c...

Matricaria chamomilla is a medicinal plant that is widely cultivated in salt affected soils. This investigation was undertaken to study the effect of NaCl concentration on germination, and the physiological, biochemical and growth characteristics of chamomile. Seed germination and growth were studied at five NaCl concentration levels (0, 40, 80, 120 and 190 mM NaCl concentration). Increasing th...

ATP-sensitive potassium channels (K(ATP)) in the thick ascending limb of the loop of Henle play an important role in apical K(+) recycling, a mechanism essential for maintaining the activity of the Na/2Cl/K-cotransporter. We have previously demonstrated that inhibition of K(ATP) decreases Na(+) and K(+) absorption in the loop of Henle and induces diuretic and natriuretic effects. In the present...

In order to clarify whether or not the electronegative olfactory mucosal potentials (EOG) are generator potentials, the effects of changed ionic enviroment were studied. The EOG decreased in amplitude and in some cases nearly or completely disappeared, when Na(+) in the bathing Ringer solution was replaced by sucrose, Li(+), choline(+), tetraethylammonium(+) (TEA), or hydrazine. In the K(+)-fre...

this study was carried out on 10 crossbred male sheep aged 1-1.5 year. an innervated crosskopf abomasal fundic pouch was made in each animal and effect o f starvation an d feeding on abomasal volume and composition were assesed . the results indicated that during starvation, volume of secretion , total acidity and k concentration decreased to a low level, while ph and na concentration reached h...

The objective of this study was to investigate the role of β-aminobutyric acid(BABA) (0, 300µM) in reduction of oxidative damages in leaves and roots of Brassica napus L. under drought stress (0, -0.2, -0.4 MPa). β-aminobutyric acid was investigated as an internal regulator hormone and its role in defense  mechanisms against biotic and abioticstresses. In this study, BABA pretreatment prevented...