(h)GR, beans and drought stress - Archive ouverte HAL Access content directly
Journal Articles Plant Signaling and Behavior Year : 2008

(h)GR, beans and drought stress

(1) , (1)
1

Abstract

Reactive oxygen species (ROS) are commonly found in plants as natural by-products of the metabolism but their production is greatly enhanced under abiotic stresses. Particular metabolites and enzymes belonging to the ascorbate-glutathione cycle are able to scavenge these deleterious molecules and modulate the cellular redox-status. In the March issue of Journal of Plant Physiology, we have shown that drought stress induces a raise in glutathione reductase (GR) activity and gene expression that could be related to the intensity of the drought treatment and the drought susceptibility of the bean cultivar (cowpea and/or common bean). In the present addendum we show new data on GR specific activity during progressive drought stress and recovery of the drought-susceptible bean cultivar which can be related to the previously found dual-targeted GR gene expression. Furthermore, since in leguminous plants homoglutathione (hGSH) is generally the most abundant low molecular weight thiol form, we discuss on the occurrence of a (homo)glutathione reductase activity in beans.
Not file

Dates and versions

bioemco-00396800 , version 1 (18-06-2009)

Identifiers

  • HAL Id : bioemco-00396800 , version 1
  • PRODINRA : 249438

Cite

Maria Cruz de Carvalho, Dominique Contour-Ansel. (h)GR, beans and drought stress. Plant Signaling and Behavior, 2008, 3 (10), pp.834-835. ⟨bioemco-00396800⟩
83 View
0 Download

Share

Gmail Facebook Twitter LinkedIn More