נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Plant glutathione peroxidases
Year:
1997
Source of publication :
Physiologia Plantarum
Authors :
Ben Hayyim, Gosal
;
.
Eshdat, Yuval
;
.
Holland, Doron
;
.
Volume :
100
Co-Authors:
Eshdat, Y., Dept. Fruit Tree Breed. Molec. G., Agricultural Research Organization, Volcani Center, 50250 Bet-Dagan, Israel
Holland, D., Dept. Fruit Tree Breed. Molec. G., Agricultural Research Organization, Volcani Center, 50250 Bet-Dagan, Israel
Faltin, Z., Dept. Fruit Tree Breed. Molec. G., Agricultural Research Organization, Volcani Center, 50250 Bet-Dagan, Israel
Ben-Hayyim, G., Dept. Fruit Tree Breed. Molec. G., Agricultural Research Organization, Volcani Center, 50250 Bet-Dagan, Israel
Facilitators :
From page:
234
To page:
240
(
Total pages:
7
)
Abstract:
Oxidative stress in plants causes the induction of several enzymes, including superoxide dismutase (EC 1.15.1.1), ascorbate peroxidase (EC 1.11.1.11) and glutathione reductase (EC 1.6.4.2). The first two are responsible for converting superoxide to H2O2 and its subsequent reduction to H2O, and the third is involved in recycling of ascorbate. Glutathione peroxidases (GPXs, EC 1.11.1.9) are a family of key enzymes involved in scavenging oxyradicals in animals. Only recently, indications for the existence of this enzyme in plants were reported. Genes with significant sequence homology to one member of the animal GPX family, namely phospholipid hydroperoxide glutathione peroxidase (PHGPX), were isolated from several plants. Cit-SAP, the protein product encoded by the citrus csa gene, which is induced by salt-stress, is so far the only plant PHGPX that has been isolated and characterized. This protein differs from the animal PHGPX in its rate of enzymatic activity and in containing a Cys instead of selenocysteine (Sec) as its presumed catalytic residue. The physiological role of Cit-SAP and its homologs in other plants is not yet known.
Note:
Related Files :
Citrus sinensis
oxidative stress
Phospholipid hydroperoxide
Plant glutathione peroxidases
selenocysteine
Show More
Related Content
More details
DOI :
10.1034/j.1399-3054.1997.1000204.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
24261
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:06
You may also be interested in
Scientific Publication
Plant glutathione peroxidases
100
Eshdat, Y., Dept. Fruit Tree Breed. Molec. G., Agricultural Research Organization, Volcani Center, 50250 Bet-Dagan, Israel
Holland, D., Dept. Fruit Tree Breed. Molec. G., Agricultural Research Organization, Volcani Center, 50250 Bet-Dagan, Israel
Faltin, Z., Dept. Fruit Tree Breed. Molec. G., Agricultural Research Organization, Volcani Center, 50250 Bet-Dagan, Israel
Ben-Hayyim, G., Dept. Fruit Tree Breed. Molec. G., Agricultural Research Organization, Volcani Center, 50250 Bet-Dagan, Israel
Plant glutathione peroxidases
Oxidative stress in plants causes the induction of several enzymes, including superoxide dismutase (EC 1.15.1.1), ascorbate peroxidase (EC 1.11.1.11) and glutathione reductase (EC 1.6.4.2). The first two are responsible for converting superoxide to H2O2 and its subsequent reduction to H2O, and the third is involved in recycling of ascorbate. Glutathione peroxidases (GPXs, EC 1.11.1.9) are a family of key enzymes involved in scavenging oxyradicals in animals. Only recently, indications for the existence of this enzyme in plants were reported. Genes with significant sequence homology to one member of the animal GPX family, namely phospholipid hydroperoxide glutathione peroxidase (PHGPX), were isolated from several plants. Cit-SAP, the protein product encoded by the citrus csa gene, which is induced by salt-stress, is so far the only plant PHGPX that has been isolated and characterized. This protein differs from the animal PHGPX in its rate of enzymatic activity and in containing a Cys instead of selenocysteine (Sec) as its presumed catalytic residue. The physiological role of Cit-SAP and its homologs in other plants is not yet known.
Scientific Publication
You may also be interested in