Report

Systemic Signaling and Acclimation in Response to Excess Excitation Energy in Arabidopsis

+ See all authors and affiliations

Science  23 Apr 1999:
Vol. 284, Issue 5414, pp. 654-657
DOI: 10.1126/science.284.5414.654

You are currently viewing the abstract.

View Full Text

Via your Institution

Log in through your institution

Log in through your institution


This article has a correction. Please see:

Abstract

Land plants are sessile and have developed sophisticated mechanisms that allow for both immediate and acclimatory responses to changing environments. Partial exposure of low light–adaptedArabidopsis plants to excess light results in a systemic acclimation to excess excitation energy and consequent photooxidative stress in unexposed leaves. Thus, plants possess a mechanism to communicate excess excitation energy systemically, allowing them to mount a defense against further episodes of such stress. Systemic redox changes in the proximity of photosystem II, hydrogen peroxide, and the induction of antioxidant defenses are key determinants of this mechanism of systemic acquired acclimation.

  • * To whom correspondence should be addressed. E-mail: stanislaw.karpinski{at}genfys.slu.se

View Full Text

Related Content