Abstract
As signaling molecules,hydrogen peroxide(H2O2) generation is induced in plants following exposure to a wide variety of biotic and abiotic stimuli.In this paper,we found that high NaCl concentration in rhizosphere could induce leaf temperature increasing and stomata closing,and increase the concentrations of Na+ and H2O2 in Vicia faba leaves.The transpiration stream under NaCl stress could induce the stomata closuring,and ascorbic acid(AsA) could partly abolish the transpiration stream-induced stomatal closure.Further experiment indicated that NaCl could not directly induce H2O2 production and stomatal closure in detached leaves,but could directly induce H2O2 production in detached roots.Those indicate that H2O2 may act as root source signal transported by fibrovascular system and mediate stomatal closure of V.faba.
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Claims 10
Claim · model-written summary
High rhizosphere NaCl raised leaf temperature.
Not reportedTaxonComparator
Verbatim
e0“high NaCl concentration in rhizosphere could induce leaf temperature increasing”
Claim · model-written summary
High rhizosphere NaCl closed stomata.
- Outcome
- stomata closinge0
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“stomata closing”
Claim · model-written summary
High rhizosphere NaCl increased leaf Na+.
- Taxon
- Vicia faba
Vicia fabae0 - Outcome
- concentrations of Na+e0
- Direction
- increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase the concentrations of Na+ and H2O2 in Vicia faba leaves”
Claim · model-written summary
High rhizosphere NaCl increased leaf H2O2.
- Taxon
- Vicia fabaVicia fabae0
- Outcome
- H2O2e0
- Direction
- increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase the concentrations of Na+ and H2O2 in Vicia faba leaves”
Claim · model-written summary
The transpiration stream under NaCl stress induced stomatal closure.
Not reportedTaxonDirection
Verbatim
e0“The transpiration stream under NaCl stress could induce the stomata closuring”
Claim · model-written summary
Ascorbic acid partly abolished transpiration-stream-induced closure.
- Treatment
- ascorbic acid(AsA)e0
- Outcome
- transpiration stream-induced stomatal closuree0
- Direction
- abolishe0
- Qualifier
- partlye0
Not reportedTaxonComparator
Verbatim
e0“ascorbic acid(AsA) could partly abolish the transpiration stream-induced stomatal closure”
Claim · model-written summary
NaCl did not directly induce H2O2 production in detached leaves.
- Organ / stage
- detached leavese0
- Treatment
- NaCle0
- Outcome
- H2O2 productione0
- Direction
- could not directly inducee0
Not reportedTaxonComparator
Verbatim
e0“NaCl could not directly induce H2O2 production and stomatal closure in detached leaves”
Claim · model-written summary
NaCl did not directly induce closure in detached leaves.
- Organ / stage
- detached leavese0
- Treatment
- NaCle0
- Outcome
- stomatal closuree0
- Direction
- could not directly inducee0
Not reportedTaxonComparator
Verbatim
e0“NaCl could not directly induce H2O2 production and stomatal closure in detached leaves”
Claim · model-written summary
NaCl directly induced H2O2 production in detached roots.
Not reportedTaxonTreatmentComparator
Verbatim
e0“could directly induce H2O2 production in detached roots”
Claim · model-written summary
Root-derived H2O2 may travel through fibrovascular tissue and mediate stomatal closure.
- Taxon
- V.fabaVicia fabae0
- Compound
- H2O2e0
- Outcome
- stomatal closuree0
- Qualifier
- root source signal transported by fibrovascular systeme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H2O2 may act as root source signal transported by fibrovascular system and mediate stomatal closure of V.faba”
The same questions in other papers
sodium chloride · physiology: gas exchange · Vicia faba (faba bean)Results differ
3 papers in the same direction as this paper
- negative
- negative
- negative
ascorbic acid · physiology: gas exchange · Vicia faba (faba bean)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →L-ascorbic acid · physiology: gas exchange · Vicia faba (faba bean)Results agree
1 paper in the same direction as this paper
- positive
sodium chloride · physiology: oxidative · Vicia faba (faba bean)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.