Abiotic stress–induced inhibition of root growth and ascorbic acid oxidase activity in barley root tip is associated with enhanced generation of hydrogen peroxide

2011 ◽  
Vol 349 (1-2) ◽  
pp. 281-289 ◽  
Author(s):  
Veronika Zelinová ◽  
Ľubica Halušková ◽  
Igor Mistrík ◽  
Ladislav Tamás
Keyword(s):  
Hydrogen Peroxide ◽  
Ascorbic Acid ◽  
Abiotic Stress ◽  
Root Growth ◽  
Oxidase Activity ◽  
Barley Root ◽  
Root Tip ◽  
Acid Oxidase ◽  
Ascorbic Acid Oxidase ◽  
Barley Root Tip

scholarly journals Metabolism of hydrogen peroxide in Euglena gracilis Z by L-ascorbic acid peroxidase

1980 ◽  
Vol 186 (1) ◽  
pp. 377-380 ◽  
Author(s):  
S Shigeoka ◽  
Y Nakano ◽  
S Kitaoka
Keyword(s):  
Hydrogen Peroxide ◽  
Ascorbic Acid ◽  
Electron Donor ◽  
Euglena Gracilis ◽  
Oxidase Activity ◽  
Acid Oxidase ◽  
Ascorbic Acid Oxidase ◽  
Reduction System ◽  
Oxidation Reduction ◽  
Euglena Gracilis Z

Euglena gracilis was found to contain a peroxidase that specifically require L-ascorbic acid as the natural electron donor in the cytosol. The presence of an oxidation-reduction system metabolizing L-ascorbic acid was demonstrated in Euglena cells. Oxidation of L-ascorbic acid by the peroxidase, and the absence of ascorbic acid oxidase activity, suggests that the system functions to remove H2O2 in E. gracilis, which lacks catalase.

Elevated indole-3-acetic acid peroxidase activity is involved in the cadmium-induced hydrogen peroxide production in barley root tip

2010 ◽  
Vol 62 (1) ◽  
pp. 59-64 ◽  
Author(s):  
L’ubica Halušková ◽  
Katarína Valentovičová ◽  
Jana Huttová ◽  
Igor Mistrík ◽  
Ladislav Tamás
Keyword(s):  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Peroxidase Activity ◽  
Barley Root ◽  
Root Tip ◽  
Hydrogen Peroxide Production ◽  
Indole 3 Acetic Acid ◽  
Barley Root Tip

Role of reactive oxygen species-generating enzymes and hydrogen peroxide during cadmium, mercury and osmotic stresses in barley root tip

Planta ◽  
2009 ◽  
Vol 231 (2) ◽  
pp. 221-231 ◽  
Author(s):  
Ladislav Tamás ◽  
Igor Mistrík ◽  
Jana Huttová ◽  
L’ubica Halušková ◽  
Katarína Valentovičová ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Hydrogen Peroxide ◽  
Reactive Oxygen ◽  
Barley Root ◽  
Root Tip ◽  
Oxygen Species ◽  
Barley Root Tip

Effect of heavy metals on root growth and peroxidase activity in barley root tip

2009 ◽  
Vol 32 (1) ◽  
pp. 59-65 ◽  
Author(s):  
L’ubica Halušková ◽  
Katarína Valentovičová ◽  
Jana Huttová ◽  
Igor Mistrík ◽  
Ladislav Tamás
Keyword(s):  
Heavy Metals ◽  
Root Growth ◽  
Peroxidase Activity ◽  
Barley Root ◽  
Root Tip ◽  
Barley Root Tip

Effect of cadmium on the distribution of hydroxyl radical, superoxide and hydrogen peroxide in barley root tip

PROTOPLASMA ◽  
2009 ◽  
Vol 236 (1-4) ◽  
pp. 67-72 ◽  
Author(s):  
Ladislav Tamás ◽  
Katarína Valentovičová ◽  
Ľubica Halušková ◽  
Jana Huttová ◽  
Igor Mistrík
Keyword(s):  
Hydrogen Peroxide ◽  
Hydroxyl Radical ◽  
Barley Root ◽  
Root Tip ◽  
Barley Root Tip
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