Genotype Dependent Adaptation of Wheat Varieties to Water Stress in vitro

G. Galiba, L. Srmon-Sarkadi, A. Salgo, G. Kocsy

Research output: Article

34 Citations (Scopus)

Abstract

Callus cultures of four varieties of hexaploid wheat (Triticum aestivum L.) were maintained on media containing various concentrations of mannitol. The induced osmotic stress inhibited growth and increased the percent dry matter and the level of free amino acids of the calli. Bigger changes were observed in drought sensitive («Cappelle DespreZ») and moderate resistant («Chinese Spring») varieties than in drought resistant ones («Saberbeg» and «Plainsman»). The putrescine content was highly increased in the drought sensitive variety. The cadaverine level was enhanced during osmotic stress in the drought sensitive and in one of the drought resistant varieties. The extractable protein content was decreased in drought sensitive and in moderate resistant varieties. During osmotic stress the aminopeptidase and carboxipeptidase activity increased significantly in the drought sensitive variety. Endopeptidase activity was low in all samples and no correlation was found between its activity and osmotic stress.

Original languageEnglish
Pages (from-to)730-735
Number of pages6
JournalJournal of Plant Physiology
Volume134
Issue number6
DOIs
Publication statusPublished - jan. 1 1989

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ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Plant Science

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