The plant glutathione peroxidase (GPX) family consists of multiple isoenzymes with distinct
subcellular locations which exhibit different tissue-specific expression patterns and …

▪ Abstract To cope with environmental fluctuations and to prevent invasion by pathogens,
plant metabolism must be flexible and dynamic. Active oxygen species, whose formation is …

▪ Abstract Plants vary considerably in their physiological response to selenium (Se). Some
plant species growing on seleniferous soils are Se tolerant and accumulate very high …

Hydrogen peroxide (H 2 O 2) has been implicated in many stress conditions. Control of H 2
O 2 levels is complex and dissection of mechanisms generating and relieving H 2 O 2 stress …

Intracellular antioxidants include low molecular weight scavengers of oxidizing species, and
enzymes which degrade superoxide and hydroperoxides. Such antioxidants systems …

We isolated two T-DNA insertion mutants of Arabidopsis thaliana GLUTATHIONE
PEROXIDASE3 (ATGPX3) that exhibited a higher rate of water loss under drought stress …

Transgenic tobacco seedlings that overexpress a cDNA encoding an enzyme with both
glutathione S-transferase (GST) and glutathione peroxidase (GPX) activity had GST-and …

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) …

Salt damage to plants has been attributed to a combination of several factors including
mainly osmotic stress and the accumulation of toxic ions. Recent findings in our laboratory …

Glutathione peroxidases (GPXs) are a group of enzymes that protect cells against oxidative
damage generated by reactive oxygen species (ROS). The presence of GPXs in plants has …