Recommend Plant Signaling & Behavior (PS&B) to your librarian for 2008. Download form here.

PS&B is the official journal of the Society for Plant Neurobiology. Full membership ($60 annually) and student membership ($30 annually) include online access to the journal. Click here to join.

Email this page

Print this page

Article Addendum

Investigating the role of plant heat shock proteins during oxidative stress

Telma E. Scarpeci, María I. Zanor and Estela M. Valle

volume 3 | issue 10

october 2008
Pages: 856 - 857

Purchase article for $19

Subscribe to this journal for $79/year

» Log in

Oxidative stress, arising from an imbalance in the generation and removal of reactive oxygen species (ROS), is a challenge faced by all aerobic organisms. In plants, different pathways sense ROS from extracellular sources or organelles such as mitochondria, chloroplast or peroxisome. In our recent paper in Plant Molecular Biology¹ we have studied the Arabidopsis thaliana early response to the generation of superoxide anion in chloroplasts during active photosynthesis. Transcript profile analysis revealed that the expression level of various genes encoding heat shock proteins (Hsps), increased after a short term of oxidative stress treatment. Furthermore, there was an induction of heat shock transcription factors HsfA2 and HsfA4A that were reported to be regulators of genes involved in stress response of Arabidopsis.^1,2

In this addendum, we complement the expression analysis of two Hsp genes encoding Hsp70 and a 17.6 kDa class I small heat-shock protein (sHsp), and discuss their plausible role during oxidative stress, considering our data and other recently published papers.

Addendum to: Scarpeci TE, Zanor MI, Carrillo N, Mueller-Roeber B, Valle EM. Generation of superoxide anion in chloroplasts of Arabidopsis thaliana during active photosynthesis: a focus on rapidly induced genes. Plant Mol Biol 2008; 66:361-78.

Authors

Telma E. Scarpeci

Universidad Nacional de Rosario

María I. Zanor

Max-Planck Institute of Molecular Plant Physiology

Estela M. Valle