Short Communication: Changes of compatible solutes content in Triticum aestivum and Triticum dicoccum seedlings in response to drought stress

Abstract

The influence of drought stress modelling by polyethene glycol (PEG) on water status, total soluble protein, proline and carbo­hydrates content in the roots and leaves tissues of three drought resistance wheat genotypes – Triticum aestivum L. (Podolianka, Favorytka) and Triticum dicoccum Schrank. (Holikovska) have been studied. Tested varieties of bread wheat and emmer wheat presented the resilience-aniso­hydric strategy for water balance regulation retaining a high level of relative water content, great variability in organic solutes with osmo­protective properties (total soluble protein, total carbohydrates and free proline) accumulation and retaining the level of low molecular weight proteins in response to drought with noticeable distinctions amid the varieties. However, drought stress increased the efficiency of accumu­lation of osmoprotectants either protein or carbohydrate nature in all three tested varieties of wheat seedlings.

Keywords

• drought stress
• triticum aestivum
• triticum dicoccum
• osmoregulators
• resilience-anisohydric strategy