Redox-Regulation. Ein Netzwerk zur flexiblen Adaptation von Stoffwechsel und Entwicklung bei Pflanzen

Abstract

Plants are dependent upon environmental factors for their photoautotrophic growth; but they are frequently exposed to suboptimal conditions due to their sessile life form. They are capable to adapt to a variety of conditions, since even plants of the same genotype exhibit a phenotypical plasticity by change of their “reaction norm”. All the informations are integrated, transduced via a highly flexible network, and realized. The reactions take place at all levels of regulation and comprise fast biophysical and biochemical processes (second and minute range) as well as slow reactions that are visible after hours (gene expression) or only after several days (growth). Redox processes are of importance in all these mechanisms. Deviation from redox-homeostasis on the one hand serves as a signal, on the other hand it is necessary that larger imbalances are buffered to avoid damage. © 2010 Institute of Classical Studies.