EC Number   |
General Information |
Reference |
|---|
   1.6.5.4 | evolution |
in plants, MDHAR belongs to a multigene family |
-, 726130 |
| 1.6.5.4 | malfunction |
insertional inactivation of the MDAR2 (At3g09940) gene and the dehydroascorbate reductase 5 (DHAR5, At1g19570) gene shows that they are crucial for maintaining the interaction between Piriformosporaindica and Arabidopsis in a mutualistic state, and under drought stress in particular |
705363 |
| 1.6.5.4 | malfunction |
transgenic lines overexpressing MDHAR show a decrease in ascorbate levels in leaves, whereas lines where MDHAR is silenced show an increase in these levels in both fruits and leaves |
-, 726130 |
| 1.6.5.4 | metabolism |
the enzyme is involved in the ascorbate recycling pathway, overview |
-, 726130 |
| 1.6.5.4 | more |
overexpression of MDHAR enhanced tolerance to osmotic stress |
-, 726105 |
| 1.6.5.4 | more |
overexpression of the enzyme in rice plants increases the plant's salt tolerance. The leaf segments from transgenic lines remain green while the leaf segments from the wild-type plants show severe bleaching at 150 mM NaCl. The salinity tolerance of these transgenic rice lines is enhanced at germination and seedling stages |
725795 |
| 1.6.5.4 | physiological function |
in cv. Moneymaker, RNAi lines for monodehydroascorbate reductase do not show significant yield decrease compared to control lines when plants are grown under carbon stress generated by mature leaf removal. A decrease in monodehydroascorbate reductase activity in fruit of cherry tomato has no effect on yield compared to a reduction in whole-plant monodehydroascorbate reductase activity |
765279 |
| 1.6.5.4 | physiological function |
in transgenic lines with reduced MDHAR activity, large decreases in fruit MDHAR activity are observed. This correlates with slight losses in fruit firmness and fruit ascorbate, independently of the genetic background. Fruit colour after chilling is also positively correlated with the redox state of the ascorbate pool and fruit firmness. Red fruit of transgenic lines show increased glutathione levels |
743668 |
| 1.6.5.4 | physiological function |
knockdown of MDHAR4 through virus-induced gene silencing enhances the wheat resistance to Puccinia striiformis f. sp. tritici by inhibiting sporulation in the compatible interaction. Gene silencing results in an increased proportion of necrotic area at the infection sites and suppresses Puccinia striiformis f. sp. tritici hypha elongation |
743520 |
| 1.6.5.4 | physiological function |
MDAR-OX plants do not show better root growth than wild type plants after exposure to 0.4 mM aluminium for 2 weeks |
713334 |
