Dehydration, Damage to the Plasma Membrane and Thylakoids, and Heat-shock Proteins in Lines of Maize Differing in Endogenous Levels of Abscisic Acid and Drought Resistance

  • Ristic Z
  • Gifford D
  • Cass D
  • 3


    Mendeley users who have this article in their library.
  • 17


    Citations of this article.


We investigated dehydration avoidance, and damage to the plasma and thylakoid membranes, in the high-level abscisic acid drought-resistant line of Zea mays L., Polj 17, and the low-level abscisic acid drought-sensitive line, F-2, under water shortage, and water shortage and high-temperature stress conditions. The synthesis of heat-shock proteins in Polj 17 and F-2 under water shortage and high-temperature stress conditions was also examined. Under water shortage conditions both lines were mildly dehydrated and suffered damage to the plasma and thylakoid membranes to a similar extent. Exposure to water shortage and high-temperature stress revealed that the high-ABA line Polj 17 had greater capability of withstanding stress conditions than the low-ABA line F-2. Polj 17 showed greater ability to avoid dehydration than F-2. Lines Polj 17 and F-2 showed similar damage to the plasma and thylakoid membranes. However, Polj-17 showed much greater ability to tolerate damage to the cell membranes than F-2. Polj 17 and F-2 did not differ in the pattern of synthesis of heat-shock proteins. Both lines synthesized bands of heat-shock proteins of 43-45 kDa, which appear to be uncommon in maize. © 1992, Gustav Fischer Verlag, Stuttgart. All rights reserved.

Author-supplied keywords

  • ABA
  • DR
  • DS
  • HSPs
  • PPF
  • RWC
  • WS
  • WTS
  • Zea mays
  • abscisic acid
  • dehydration
  • drought resistant
  • drought sensitive
  • heat-shock proteins
  • high-temperature
  • membrane damage
  • photosynthetic photon flux
  • relative water content
  • water shortage
  • water shortage and high temperature stress

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Zoran Ristic

  • David J. Gifford

  • David D. Cass

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free