Titlebook: Recent Advances of Plant Root Structure and Function; Proceedings of the 5 Otília Ga?paríková,Milada ?iamporová,Franti?ek Bal Conference pr

Heart-Attack

高度

Calcium channels in the plasma membrane of root cells: Their roles in mineral nutrition and cell sigand, and regulate cellular activities through changes in cytoplasmic Ca. concentration. In this paper, the biophysical properties and physiological functions of Ca. channels in the plasma membrane of root cells are reviewed. Acclimation to low temperatures is given as an example to illustrate how ki

可互換

Nitrogen and base cation uptake in seedlings of , and , exposed to an acidified environmenttudy. Uptake rates were measured by the depletion method under controlled conditions (temperature 20 °C, irradiance 400 .mol m. s. PAR) from a nutrient solution containing 1.5 m. nitrogen in the form of nitrate or ammonium or an equimolar mixture of both. The solution acidity was kept constant at pH

KIN

Nitrate uptake by bean (, L.) roots under phosphate deficiencyeased ATP level and nitrate uptake rate. The mechanisms which may control nitrate uptake rate during phosphate deficiency were examined. Plasma membrane enriched fractions from phosphate sufficient and phosphate deficient plants were isolated and compared. The decrease in total phospholipid content

小卒

Awning

有惡臭

Fast shoot responses to root treatment. Are hormones involved?e roots for 0.5 min in a concentrated solution of potassium chloride. The concentration of IAA (indole-3-acetic acid), ABA (abscisic acid) and cytokinins was immunoassayed using specific antibodies. Very fast changes in hormone content were observed in shoots of plants following their root treatment

細微差別

Response of tomato plants to chilling stress in association with nutrient or phosphorus starvationDNS) combined with chilling reduced the rate of photosynthesis (..) and stomatal conductance (g) to a greater extent than in plants grown in full nutrient solution (FNS). In phosphate-starved tomato plants the .. rate and stomatal conductance decreased more after chilling than in plants grown on FNS

慷慨不好

BOAST

The distribution of lead in duckweed (, L.) root tipthe cells of the aquatic plant. . L. (duckweed) roots were examined using X-ray microanalysis. After 1-h treatment with lead, its concentration was the highest in small vacuoles. After 6 and 12 h, the lead content of cell walls gradually increased. The changes of lead level between vacuoles and cell