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Properties and functions of glutathione reductase in plants
Author(s) -
Smith Ivan K.,
Vierheller Thomas L.,
Thorne Carol A.
Publication year - 1989
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1989.tb05666.x
Subject(s) - glutathione reductase , glutathione , glutaredoxin , gpx4 , biochemistry , gpx1 , reductase , gpx3 , oxidative stress , chloroplast , gpx6 , chemistry , biology , enzyme , glutathione peroxidase , gene
The assay and in vitro characterization of glutathione reductase (EC 1.6.4.2) is discussed. In vivo the H 2 O 2 ‐scavenging system in chloroplasts is the best documented role of reduced glutathione and glutathione reductase in plants. Similarly, redaction of H 2 O 2 , outside of the chloroplasts, requires glutathione and glutathione reductase; but the pathway, in terms of intermediates, is controversial. The notion that biological stress frequently causes cellular oxidation has lead to the suggestion that glutathione and glutathione reductase may play a role in stress resistance or tolerance mechanisms. The changes in glutathione reductase levels in response to low temperature, oxidative stress and drought are discussed.