Organism | UniProt | Comment | Textmining |
---|---|---|---|
Solanum pennellii | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
fruit | the MDHAR enzyme is active in different stages of fruit ripening and shows increased activity in the introgression lines containing the wild-type (Solanum pennellii) allele, and responds to chilling injury in tomato along with the reduced/oxidized ascorbate ratio. Low temperature storage of different tomato introgression lines with all or part of the quantitative trait loci for ascorbic acid and with or without the wild MDHAR allele shows that enzyme activity explains 84% of the variation in the reduced ascorbic acid levels of tomato fruit following storage at 4 °C, compared with 38% at harvest under non-stress conditions. A role is indicated for MDHAR in the maintenance of ascorbate levels in fruit under stress conditions. An increased fruit MDHAR activity and a lower oxidation level of the fruit ascorbate pool are correlated with decreased loss of firmness because of chilling injury | Solanum pennellii | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
NADH + monodehydroascorbate | - |
Solanum pennellii | NAD+ + ascorbate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
MDHAR | - |
Solanum pennellii |
monodehydroascorbate reductase | - |
Solanum pennellii |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
NADH | - |
Solanum pennellii |