Abstract
When pea plants (Pisum sativum L.) were subjected to flooding, abscisic acid (ABA) content in shoots and roots increased up to 8-fold in the following days and stomatal conductance significantly decreased. Although young leaves of flooded plants had a slightly higher water potential than those of the unflooded plants, old leaves had lower water potential and lost turgor at the time when a substantial ABA increase was detected. In plants where the old leaves were clipped off, flooding did not cause any ABA increase during 7 d of the experimental period, except under conditions of higher transpiration demand, when the increase in ABA content was both delayed and small in scale (only I-fold). When intact plants were flooded and ABA was assayed separately in both old and young leaves, the ABA increase in old leaves preceded that in young leaves. Evidence here suggests that the flooding-induced ABA increase mainly results from the wilting of old leaves. This suggests that young leaves may be protected from wilting by ABA originating in old leaves under unfavourable environmental conditions.
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Claims 10
Claim · model-written summary
Flooding increased ABA content in pea shoots and roots up to 8-fold over the following days.
- Taxon
- pea plants
Lathyrus oleraceust0 - Organ / stage
- shoots and rootse1
- Treatment
- floodinge1
- Outcome
- abscisic acid (ABA) contente1
- Direction
- increasede1
- Value
- up to 8-folde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“When pea plants (Pisum sativum L.) were subjected to flooding, abscisic acid (ABA) content in shoots and roots increased up to 8-fold in the following days and stomatal conductance significantly decreased”
Claim · model-written summary
Flooding significantly decreased stomatal conductance in pea.
- Taxon
- pea plantsLathyrus oleraceust0
- Treatment
- floodinge1
- Outcome
- stomatal conductancee1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“When pea plants (Pisum sativum L.) were subjected to flooding, abscisic acid (ABA) content in shoots and roots increased up to 8-fold in the following days and stomatal conductance significantly decreased”
Claim · model-written summary
Young leaves of flooded plants had a slightly higher water potential than those of unflooded plants.
- Taxon
- pea plantsLathyrus oleraceust0
- Organ / stage
- young leavese1
- Treatment
- flooded plantse1
- Outcome
- water potentiale1
- Direction
- highere1
- Comparator
- unflooded plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“Although young leaves of flooded plants had a slightly higher water potential than those of the unflooded plants, old leaves had lower water potential and lost turgor”
Claim · model-written summary
Old leaves of flooded plants had lower water potential.
- Taxon
- pea plantsLathyrus oleraceust0
- Organ / stage
- old leavese1
- Treatment
- flooded plantse1
- Outcome
- water potentiale1
- Direction
- lowere1
- Comparator
- unflooded plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“Although young leaves of flooded plants had a slightly higher water potential than those of the unflooded plants, old leaves had lower water potential and lost turgor”
Claim · model-written summary
Old leaves of flooded plants lost turgor when a substantial ABA increase was detected.
- Taxon
- pea plantsLathyrus oleraceust0
- Organ / stage
- old leavese1
- Outcome
- lost turgore1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“Although young leaves of flooded plants had a slightly higher water potential than those of the unflooded plants, old leaves had lower water potential and lost turgor”
Claim · model-written summary
When old leaves were clipped off, flooding did not cause any ABA increase during 7 d.
- Taxon
- pea plantsLathyrus oleraceust0
- Treatment
- floodinge1
- Outcome
- ABA increasee1
- Direction
- no_changeinferrede1
- Qualifier
- old leaves were clipped offe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“In plants where the old leaves were clipped off, flooding did not cause any ABA increase during 7 d of the experimental period, except under conditions of higher transpiration demand, when the increase in ABA content was both delayed and small in scale (only I-fold)”
Claim · model-written summary
In plants with old leaves clipped, under higher transpiration demand the ABA increase from flooding was delayed and small (only 1-fold).
- Taxon
- pea plantsLathyrus oleraceust0
- Treatment
- floodinge1
- Outcome
- increase in ABA contente1
- Direction
- increasee1
- Value
- only I-folde1
- Qualifier
- higher transpiration demande1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“In plants where the old leaves were clipped off, flooding did not cause any ABA increase during 7 d of the experimental period, except under conditions of higher transpiration demand, when the increase in ABA content was both delayed and small in scale (only I-fold)”
Claim · model-written summary
In intact flooded plants, the ABA increase in old leaves preceded that in young leaves.
- Taxon
- pea plantsLathyrus oleraceust0
- Organ / stage
- old leavese1
- Outcome
- ABA increasee1
- Qualifier
- preceded that in young leavese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“the ABA increase in old leaves preceded that in young leaves”
Claim · model-written summary
The flooding-induced ABA increase mainly results from the wilting of old leaves.
- Taxon
- pea plantsLathyrus oleraceust0
- Organ / stage
- old leavese1
- Outcome
- flooding-induced ABA increasee1
- Qualifier
- wilting of old leavese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“the flooding-induced ABA increase mainly results from the wilting of old leaves”
Claim · model-written summary
Young leaves may be protected from wilting by ABA originating in old leaves under unfavourable environmental conditions.
- Taxon
- pea plantsLathyrus oleraceust0
- Organ / stage
- young leavese1
- Compound
- ABAe1
- Outcome
- protected from wiltinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea plants”
e1“young leaves may be protected from wilting by ABA originating in old leaves”
The same questions in other papers
flooding · molecular: metabolites · Lathyrus oleraceus (pea)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- 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.