5 rezultate
Mg(2+), Ca(2+) and La(3+) caused an increased period time of the transpiratory oscillations when given to excised oscillating Avena plants (plants without root system). The effect was reversible, i.e. after withdrawal of the ions the period time returned to its original value. In order to achieve
Leaf-sheath pulvini of excised segments from oat (Avena sativa L.) were induced to grow by treatment with 10 micromoles indole-3-acetic acid (IAA), gravistimulation, or both, and the effects of calcium, EGTA, and calcium channel blockers on growth were evaluated. Unilaterally applied calcium (10 mM
In order to determine if components of the signal transduction pathway are involved in starch metabolism during the gravitropic response, the effects of inhibitors of phosphoprotein phosphatases and protein kinases (OA), and calcium channel blockers (LaCl3), on gravitropic bending and starch levels
Calcium is sequestered into vacuoles of oat (Avena sativa L.) root cells via a H(+)/Ca(2+) antiporter, and vesicles derived from the vacuolar membrane (tonoplast) catalyze an uptake of calcium which is dependent on protons (pH gradient [DeltapH] dependent). The first step toward purification and
The elongation response of Avena sativa (oat) stem segments to gibberellic acid (GA3) is of large magnitude, with high hormonal sensitivity and specificity, but without cell division activity. This system is therefore an excellent model for mechanistic studies on higher plant cell elongation and the