Abstract
The influences of exogenous H 2O 2 and salicylic acid (SA) treatments on the alternative respiratory pathway (ARP) in aged potato (Solanum tuberosum L.) tuber slices were compared. The results showed that both H 2O 2(5.0 mmol/L) and SA (0.1 mmol/L) treatments had a significant inducing effect on ARP capacity (V alt ) and its ratio to total respiration (V alt /V t) in potato slices aged for 24 h. With a monoclonal antibody against the alternative oxidase (AOX), Western blotting results showed that both H 2O 2 and SA treatments increased the AOX expression levels in aged potato tuber slices. However, the results of oxygen isotope discrimination experiments showed that H 2O 2 had no influence on the in vivo ARP activity (ρV alt ) and its contribution to V t(expressed as ρV alt /V t) in potato slices aged for 24 h, but SA had a significant influence on the ρV alt and ρV alt /V t values of the aged potato tuber slices. These results indicate that there are differences between the effects of H 2O 2 and SA on ARP in plant tissues. Both of them possess the ability to induce ARP capacity through inducing AOX expression. However, SA can simultaneously stimulate the operation of ARP, but H 2O 2 can not.
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Claims 7
Claim · model-written summary
H 2O 2 significantly induced ARP capacity and its ratio to total respiration.
- Taxon
- potato
Solanum tuberosume0 - Organ / stage
- slices aged for 24 he0
- Treatment
- H 2O 2(5.0 mmol/L)e0
- Outcome
- ARP capacity (V alt ) and its ratio to total respiration (V alt /V t)e0
- Direction
- inducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both H 2O 2(5.0 mmol/L) and SA (0.1 mmol/L) treatments had a significant inducing effect on ARP capacity (V alt ) and its ratio to total respiration (V alt /V t) in potato slices aged for 24 h”
Claim · model-written summary
SA significantly induced ARP capacity and its ratio to total respiration.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- SA (0.1 mmol/L)e0
- Outcome
- ARP capacity (V alt ) and its ratio to total respiration (V alt /V t)e0
- Direction
- inducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both H 2O 2(5.0 mmol/L) and SA (0.1 mmol/L) treatments had a significant inducing effect on ARP capacity (V alt ) and its ratio to total respiration (V alt /V t) in potato slices aged for 24 h”
Claim · model-written summary
H 2O 2 increased AOX expression in aged tuber slices.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- H 2O 2e0
- Gene
- AOXe0
- Outcome
- AOX expression levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both H 2O 2 and SA treatments increased the AOX expression levels in aged potato tuber slices”
Claim · model-written summary
SA increased AOX expression in aged tuber slices.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- SAe0
- Gene
- AOXe0
- Outcome
- AOX expression levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both H 2O 2 and SA treatments increased the AOX expression levels in aged potato tuber slices”
Claim · model-written summary
H 2O 2 had no influence on in vivo ARP activity or its contribution to respiration.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- H 2O 2e0
- Outcome
- in vivo ARP activity (ρV alt ) and its contribution to V t(expressed as ρV alt /V t)e0
- Direction
- no influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H 2O 2 had no influence on the in vivo ARP activity (ρV alt ) and its contribution to V t(expressed as ρV alt /V t) in potato slices aged for 24 h”
Claim · model-written summary
SA significantly affected in vivo ARP activity and its contribution to respiration.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- SAe0
- Outcome
- ρV alt and ρV alt /V t valuese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA had a significant influence on the ρV alt and ρV alt /V t values of the aged potato tuber slices”
Claim · model-written summary
Both treatments induce ARP capacity through AOX expression.
- Taxon
- PotatoSolanum tuberosumt0
- Gene
- AOXe0
- Outcome
- ARP capacitye0
- Direction
- inducee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both of them possess the ability to induce ARP capacity through inducing AOX expression”
t0“Potato”
The same questions in other papers
hydrogen peroxide · molecular: expression · Solanum tuberosum (potato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
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salicylic acid · molecular: expression · Solanum tuberosum (potato)Positive and negative results
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See all 16 papers →salicylic acid · physiology: respiration · Solanum tuberosum (potato)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.