Format

Send to

Choose Destination
See comment in PubMed Commons below
Physiol Plant. 2008 Jul;133(3):481-9. doi: 10.1111/j.1399-3054.2008.01090.x. Epub 2008 Jul 1.

Reactive oxygen signaling and abiotic stress.

Author information

1
Department of Biochemistry and Molecular Biology, University of Nevada, MS200, Reno, NV 89557, USA.

Abstract

Reactive oxygen species (ROS) play a dual role in plant biology acting on the one hand as important signal transduction molecules and on the other as toxic by-products of aerobic metabolism that accumulate in cells during different stress conditions. Because of their toxicity as well as their important signaling role, the level of ROS in cells is tightly controlled by a vast network of genes termed the 'ROS gene network'. Using mutants deficient in key ROS-scavenging enzymes, we have defined a signaling pathway that is activated in cells in response to ROS accumulation. Interestingly, many of the key players in this pathway, including different zinc finger proteins and WRKY transcription factors, are also central regulators of abiotic stress responses involved in temperature, salinity and osmotic stresses. Here, we describe our recent findings and discuss how ROS integrate different signals originating from different cellular compartments during abiotic stress.

[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center