in this study, the effect of four citrus rootstocks {sour orange (citrus aurantium), bakraeii (c. reticulata × c. aurantium, mexican lime (c. aurantifolia) and volkamerlemon (c. volkameriana)} on orlando tangelo leaf chlorophyll content and mineral element concentrations (n, p, k, ca, na, mg, fe, zn, mn, cl, cu, and b) have been evaluated in completely randomized design with four replications. ...

This study was carried out in the Middle Governorate of Gaza Strip, Palestine. The coastal aquifer is the main source of water for domestic, agricultural, and industrial purposes in the study area. During the last three decades the aquifer has deteriorated to a high degree in the quality and quantity due to the over-pumping and the encroachment of seawater.  Hydrogeochemical analysis for ground...

Xenopus oocytes are a popular model system for studying Ca signaling. They endogenously express two kinds of Ca-activated Cl currents, I(Cl-1), and I(Cl-2). I(Cl-1) is activated by Ca released from internal stores and, with appropriate voltage protocols, by Ca influx. In contrast, I(Cl-2) activation is dependent on Ca influx. We are interested in understanding how these two different Cl channel...

Whole cell patch-clamp recordings were made from cultured myenteric neurons taken from murine proximal colon. The micropipette contained Cs(+) to remove K(+) currents. Depolarization elicited a slowly activating time-dependent outward current (I(tdo)), whereas repolarization was followed by a slowly deactivating tail current (I(tail)). I(tdo) and I(tail) were present in approximately 70% of neu...

Measurements of Pb, Cu, Zn, As, Ni, Hg, and Fe heavy metals and major elements and components such as Ca, HCO3, SO4, Na, K, Mg and Cl in soluble rain fractions were performed on rainwater collected at Arak plain during the rainy seasons of 2012. Concentrations of the heavy metals in the soluble fractions decreased for Fe, Pb, Zn, Ni, Cu, As and Hg, respectively and the major elements and compon...

23 Vesicle release from photoreceptor ribbon synapses is regulated by L-type Ca 24 channels which are in turn regulated by Cl moving through calcium-activated chloride 25 (Cl(Ca)) channels. We assessed the proximity of Ca channels to release sites and 26 Cl(Ca) channels in synaptic terminals of salamander photoreceptors by comparing fast 27 (BAPTA) and slow (EGTA) intracellular Ca buffers. BAPT...