Effect of Sodium Toxicity on The cellular membranes Integrity and Some Physiological Parameters in Cucumis sativus L. Cuttings | ||
| Euphrates Journal of Agriculture Science | ||
| Article 1, Volume 8, Issue 3, September 2016, Pages 23-32 | ||
| Authors | ||
| Evan Ibrahim Merhij; Abdullah I. Shaheed | ||
| Abstract | ||
| The effect of sodium toxicity (NaCl) on cellular membranes integrity (MDA, LOX, protein, protease, potassium & sodium contents) as well as some physiological parameters (rooting response, EC, chlorophylls a, b and total, leaf area, transpiration rate and fresh and dry weight ) was studied. Cuttings were treated with different concentration of NaCl (0, 15, 20, 25, 50, 75, 100, 125, 150, 175, 200, 225 & 250) meq/L for 24 hours. 75 meq/L was the toxic level of sodium in terms of rooting response. This level causeddamage of cellular membranes and permeability perturbation through increasing of MDA content, LOX and protease activities. Whereas, decrease in protein content as well as increase of Na+ and decline of K+ concentration. In addition, significant decrease of a, b and total chlorophyll, leaf area, transpiration rate, fresh and dry weight were . | ||
| Keywords | ||
| LOX; MDA; Permeability; potassium; protease; protein; sodium; Toxicity | ||
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