Plants have to counteract unavoidable stress-caused anomalies such as oxidative stress to
sustain their lives and serve heterotrophic organisms including humans. Among major …

Abstract Hydrogen peroxide (H2O2) is an important signal molecule involved in plant
development and environmental responses. Changes in H2O2 availability can result from …

Drought drastically restricts wheat production, so to dissect allelic variations of drought
tolerant genes without imposing trade-offs between tolerance and yield is essential to cope …

While genomics and post-genomics studies have revealed that plant cell redox state is
controlled by a complex genetic network, available data mean that catalase must continue to …

Catalases and peroxidases are the two major systems for the enzymic removal of hydrogen
peroxide (H202) in plants. Catalases dismutate H202 to H20 and 02 (2H202~ 2H20+ O2) …

To explore the role of plant mitochondria in the regulation of cellular redox homeostasis and
stress resistance, we exploited a Nicotiana sylvestris mitochondrial mutant. The cytoplasmic …

H2O2 serves an important stress signaling function and promotes stomatal closure, whereas
ascorbic acid (Asc) is the major antioxidant that scavenges H2O2. Dehydroascorbate …

Endogenous circadian and exogenously driven daily rhythms of antioxidative enzyme
activities and of low molecular weight antioxidants (LMWAs) are described in various …

The catalase multigene family in Arabidopsis includes three genes encoding individual
subunits that associate to form at least six isozymes that are readily resolved by …

Genes expressed under circadian-clock control are found in organisms ranging from
prokaryotes to humans. In Drosophila melanogaster, the period (per) gene, which is …