Abstract
FTL10 is an early flowering mutant of OsFTL10-suppressed transgenic rice (Oryza sativa L.) with premature senescence phenotype. Early leaf senescence can cause negative effects on rice yield, therefore delaying leaf senescence and prolonging the leaf functional stage is one of the important approaches to increase the rice yield. It is well known that ascorbic acid (AsA) is involved in regulating plant growth. To explore the effect of AsA on leaf senescence of FTL10, we treated rice leaves with 0.28 mM AsA. Results showed that total antioxidant capacity was higher and reactive oxygen species were lower in the AsA-treated group. The expression of senescence-associated genes was higher in the control group. Exogenous AsA can stabilize chlorophyll and Rubisco protein contents, delay leaf senescence, and maintain net photosynthetic rate (PN) of rice leaves. Our results suggest that exogenous application of AsA can delay leaf senescence, increase PN, and then increase the rice yield.
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Claims 7
Claim · model-written summary
AsA raised total antioxidant capacity.
- Taxon
- rice
Oryza sativat0 - Material
- FTL10t0
- Treatment
- AsAe0
- Outcome
- total antioxidant capacitye0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total antioxidant capacity was higher and reactive oxygen species were lower in the AsA-treated group.”
t0“rice mutant FTL10”
Claim · model-written summary
AsA lowered reactive oxygen species.
- Taxon
- riceOryza sativat0
- Material
- FTL10t0
- Treatment
- AsAe0
- Outcome
- reactive oxygen speciese0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total antioxidant capacity was higher and reactive oxygen species were lower in the AsA-treated group.”
t0“rice mutant FTL10”
Claim · model-written summary
Senescence-associated gene expression was higher in controls.
- Taxon
- riceOryza sativat0
- Material
- FTL10t0
- Treatment
- AsAe1
- Outcome
- expression of senescence-associated genese0
- Direction
- highere0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expression of senescence-associated genes was higher in the control group.”
t0“rice mutant FTL10”
e1“total antioxidant capacity was higher and reactive oxygen species were lower in the AsA-treated group.”
Claim · model-written summary
AsA stabilized chlorophyll and Rubisco protein contents.
- Taxon
- riceOryza sativat0
- Treatment
- AsAe0
- Outcome
- chlorophyll and Rubisco protein contentse0
- Direction
- stabilizee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous AsA can stabilize chlorophyll and Rubisco protein contents”
t0“rice mutant FTL10”
Claim · model-written summary
AsA delayed leaf senescence.
- Taxon
- riceOryza sativat0
- Treatment
- AsAe1
- Outcome
- leaf senescencee0
- Direction
- delaye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stabilize chlorophyll and Rubisco protein contents, delay leaf senescence”
t0“rice mutant FTL10”
e1“total antioxidant capacity was higher and reactive oxygen species were lower in the AsA-treated group.”
Claim · model-written summary
AsA maintained net photosynthetic rate.
- Taxon
- riceOryza sativae0
- Treatment
- ascorbic acidt0
- Outcome
- net photosynthetic rate (PN)e0
- Direction
- maintaine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maintain net photosynthetic rate (PN) of rice leaves.”
t0“Exogenous ascorbic acid”
Claim · model-written summary
Authors suggest AsA application can increase rice yield.
- Taxon
- riceOryza sativae0
- Outcome
- exogenous application of AsAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous application of AsA can delay leaf senescence, increase PN, and then increase the rice yield.”
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