Sebastian Fettig
Articles written in Journal of Biosciences
Volume 32 Issue 3 April 2007 pp 501-510 Articles
specific and unspecific responses of plants to cold and drought stress
Erwin H Beck Sebastian Fettig Claudia Knake Katja Hartig Tribikram Bhattarai
Different environmental stresses to a plant may result in similar responses at the cellular and molecular level. This is due to the fact that the impacts of the stressors trigger similar strains and downstream signal transduction chains. A good example for an unspecific response is the reaction to stressors which induce water deficiency e.g. drought, salinity and cold, especially frost. The stabilizing effect of liquid water on the membrane bilayer can be supported by compatible solutes and special proteins. At the metabolic level, osmotic adjustment by synthesis of low-molecular osmolytes (carbohydrates, betains, proline) can counteract cellular dehydration and turgor loss. Taking the example of
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