Abstract
The application of in vitro systems can lead to new methods of crop amelioration. This method has been widely utilized for breeding tenacities, particularly for stress tolerance selection. Salinity causes oxidative stress in callus by enhancing the production of Reactive Oxygen Species (ROS), resulting in an efficient antioxidant system. The exogenous application of ascorbic acid (AsA) is an important requirement for tolerance. The present study aimed to examine in vitro selection strategy for callus induction in rice mature embryo culture on MS culture medium and to produce salt-tolerant callus under sodium chloride (NaCl) and AsA conditions in callus rice variety, MR269. This study also highlights changes in the activities of proline and antioxidants peroxidase (POD), catalase (CAT) and superoxide dismutase (SOD) of callus under NaCl stress to understand their possible role in salt tolerance. However, various levels of exogenously applied AsA under saline conditions improved callus, and the antioxidant enzyme activities of AsA are related to resistance to oxidative stress. Our results provide strong support for the hypothesis that AsA-dependent antioxidant enzymes play a significant role in the salinity tolerance of callus rice.
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Claims 2
Claim · model-written summary
Ascorbic acid improved rice callus under saline conditions.
- Taxon
- rice
Oryza sativat0 - Treatment
- exogenously applied AsAe0
- Outcome
- calluse0
- Direction
- improvede0
- Qualifier
- under saline conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“various levels of exogenously applied AsA under saline conditions improved callus, and the antioxidant enzyme activities of AsA are related to resistance to oxidative stress.”
t0“Impact of exogenous ascorbic acid on biochemical activities of rice callus treated with salt stress”
Claim · model-written summary
Ascorbic acid related antioxidant enzyme activity to oxidative stress resistance.
- Taxon
- riceOryza sativat0
- Treatment
- AsAe0
- Gene
- antioxidant enzyme activitiese0
- Outcome
- resistance to oxidative stresse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“various levels of exogenously applied AsA under saline conditions improved callus, and the antioxidant enzyme activities of AsA are related to resistance to oxidative stress.”
t0“Impact of exogenous ascorbic acid on biochemical activities of rice callus treated with salt stress”
The same questions in other papers
L-ascorbic acid · growth · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.