Sensing and signalling events that detect abiotic stress-induced changes in plant water status and initiate downstream stress responses such as ABA (abscisic acid) accumulation and osmoregulation remain uncharacterized in plants. Although conclusive results are lacking, recent results from plants, and analogies to signalling in other organisms, suggest possible mechanisms for sensing altered water status and initial transduction of that signal. Internal signals that act downstream of ABA and modulate stress responses to reflect the type and severity of the stress and the metabolic status of the plant are also not well understood. Two specific types of signalling, sugar sensing and reactive oxygen signalling, are likely to be modulators of ABA response under stress. For both upstream sensing and signalling of plant water status as well as downstream modulation of ABA response, present results suggest several genetic strategies with high potential to increase our understanding of the molecular basis by which plants sense and respond to altered water status.
Skip Nav Destination
Article navigation
April 2005
-
Cover Image
Cover Image
- PDF Icon PDF LinkFront Matter
- PDF Icon PDF LinkTable of Contents
Conference Article|
April 01 2005
Before and beyond ABA: upstream sensing and internal signals that determine ABA accumulation and response under abiotic stress
P.E. Verslues;
P.E. Verslues
1
1Institute for Integrative Genome Biology and Department of Botany and Plant Sciences, University of California, Riverside, CA 92521, U.S.A.
1To whom correspondence should be addressed (email paul.verslues@ucr.edu).
Search for other works by this author on:
J.-K. Zhu
J.-K. Zhu
1Institute for Integrative Genome Biology and Department of Botany and Plant Sciences, University of California, Riverside, CA 92521, U.S.A.
Search for other works by this author on:
Publisher: Portland Press Ltd
Received:
January 10 2005
Online ISSN: 1470-8752
Print ISSN: 0300-5127
© 2005 The Biochemical Society
2005
Biochem Soc Trans (2005) 33 (2): 375–379.
Article history
Received:
January 10 2005
Citation
P.E. Verslues, J.-K. Zhu; Before and beyond ABA: upstream sensing and internal signals that determine ABA accumulation and response under abiotic stress. Biochem Soc Trans 1 April 2005; 33 (2): 375–379. doi: https://doi.org/10.1042/BST0330375
Download citation file:
Sign in
Don't already have an account? Register
Sign in to your personal account
You could not be signed in. Please check your email address / username and password and try again.
Captcha Validation Error. Please try again.