Free proline as indicator of metalstability of wheat

Abstract

Increase of level of a free proline in sprouts of various grades of winter wheat is shown at effect of salts Cd2+, Cu2+, Zn2+. High-quality specificity on this amino acid in reaction of winter wheat to the heavy metals (HM) is revealed. It is established that ions of Cd2+ are the strongest ekotoksikant that involves activation of cellular mechanisms a stress stability of the plants, caused by considerable accumulation of a free proline. Possibility of use of a free proline for indication of metalstability of wheat and other grain crops for steady agricultural production is considered.