تأثير الملوحة في تركيب دهون الغشاء الخلوي و بناء البروتينات لصنفين من البزاليا Pisum sativum L

الملخص EN

This experiment was conducted to assess the effect of different salt levels at the cellular level of two Peas (Pisum sativum L.) cultivars; Alderman (tall cultivar) and Little marvel (short cultivar).

The experiment included the use of drainage water at three salt levels, 2 , 4 , and 6 dsm-1 in addition to Al-Diwaniya river water (1.4 dsm-1) as a control treatment.

The results showed that proline was accumulated in leaves in proportion to increase salt levels.

Proline accumulation in leaves in the pre-blooming period was more than that at six weeks after germination.

Cell injury was increased significantly in leaves of the two cultivars due to the use of 4 or 6 dsm-1 of salts.

Injury was more determinal after six weeks of treatment, in compare to that at pre-blooming periods.

Also using 4 or 6 dsm-1 of salts caused significant increase in the amount of saturated fatty acids (Myristic, Palmatic, Stearic, and Arephidic) and significant decrease in the amount of unsaturated fatty acids (Palmatoleic, Oleic, and Linoleic).

The 2 dsm-1 salt level caused an increase in Palmitic and a decrease in Linoleic acid in little marvel cultivar only.

There were no big differences in the molecular weight of proteins formed under salt conditions in Alderman cultivar, while the 6 dsm-1 salt level enhanced the synthesize of low molecular weight protein in little marvel cultivar.