Ascorbate is the natural substrate for plant peroxidases.
FEBS Lett
; 378(3): 203-6, 1996 Jan 15.
Article
in En
| MEDLINE
| ID: mdl-8557101
ABSTRACT
Ascorbate-dependent detoxification of hydrogen peroxide by guaiacol-type peroxidases is increased considerably in the presence of 3,4-dihydroxyphenolic compounds, suggesting that ascorbate is the natural substrate for many types of peroxidase in situ and not just the ascorbate-specific peroxidases. The ascorbate-dependent destruction of hydrogen peroxide in the more acidic cellular compartments such as the vacuole may be an important function of such non-specific peroxidases. The stress-induced production of phenolic compounds would render the guaiacol peroxidases in other less acidic-cellular sites effective as ascorbate-dependent H2O2-detoxifying enzymes.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Peroxidases
/
Plants
/
Ascorbic Acid
/
Horseradish Peroxidase
Language:
En
Journal:
FEBS Lett
Year:
1996
Type:
Article
Affiliation country:
Germany