Abstract
Arabidopsis has inducible responses for tolerance of O2 deficiency. Plants previously exposed to 5% O2 were more tolerant than the controls to hypoxic stress (0.1% O2 for 48 h) in both roots and shoots, but hypoxic acclimation did not improve tolerance to anoxia (0% O2). The acclimation of shoots was not dependent on the roots: increased shoot tolerance was observed when the roots of the plants were removed. An adh (alcohol dehydrogenase) null mutant did not show acclimation of the roots but retained the shoot survival response. Abscisic acid treatment also differentiated the root and shoot responses; pretreatment induced root survival in hypoxic stress conditions (0.1% O2) but did not induce any increase in the survival of shoots. Cycloheximide blocked both root and shoot acclimation, indicating that both acclimation mechanisms are dependent on protein synthesis.
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Claims 10
Claim · model-written summary
Prior 5% O2 exposure increased root tolerance to 0.1% O2 for 48 h.
- Taxon
- Arabidopsis
Arabidopsist0 - Organ / stage
- rootse0
- Treatment
- 5% O2e0
- Outcome
- tolerante0
- Direction
- moree0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants previously exposed to 5% O2 were more tolerant than the controls to hypoxic stress (0.1% O2 for 48 h) in both roots and shoots”
t0“Arabidopsis”
Claim · model-written summary
Prior 5% O2 exposure increased shoot tolerance to 0.1% O2 for 48 h.
- Taxon
- ArabidopsisArabidopsist0
- Organ / stage
- shootse0
- Treatment
- 5% O2e0
- Outcome
- tolerante0
- Direction
- moree0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants previously exposed to 5% O2 were more tolerant than the controls to hypoxic stress (0.1% O2 for 48 h) in both roots and shoots”
t0“Arabidopsis”
Claim · model-written summary
Hypoxic acclimation did not improve anoxia tolerance.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- hypoxic acclimatione0
- Outcome
- tolerance to anoxiae0
- Direction
- did not improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hypoxic acclimation did not improve tolerance to anoxia (0% O2).”
t0“Arabidopsis”
Claim · model-written summary
Shoot acclimation persisted after roots were removed.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- roots of the plants were removede0
- Outcome
- shoot tolerancee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased shoot tolerance was observed when the roots of the plants were removed.”
t0“Arabidopsis”
Claim · model-written summary
The adh null mutant did not acclimate its roots.
- Taxon
- ArabidopsisArabidopsist0
- Material
- adh (alcohol dehydrogenase) null mutante0
- Organ / stage
- rootse0
- Gene
- adhe0
- Outcome
- acclimation of the rootse0
- Direction
- did not showe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An adh (alcohol dehydrogenase) null mutant did not show acclimation of the roots but retained the shoot survival response.”
t0“Arabidopsis”
Claim · model-written summary
The adh null mutant retained shoot survival response.
- Taxon
- ArabidopsisArabidopsist0
- Material
- adh (alcohol dehydrogenase) null mutante0
- Organ / stage
- shoote0
- Gene
- adhe0
- Outcome
- shoot survival responsee0
- Direction
- retainede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An adh (alcohol dehydrogenase) null mutant did not show acclimation of the roots but retained the shoot survival response.”
t0“Arabidopsis”
Claim · model-written summary
Abscisic acid pretreatment induced root survival under hypoxia.
- Taxon
- ArabidopsisArabidopsist0
- Organ / stage
- roote0
- Treatment
- Abscisic acid treatmente1
- Outcome
- root survivale0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretreatment induced root survival in hypoxic stress conditions (0.1% O2) but did not induce any increase in the survival of shoots.”
t0“Arabidopsis”
e1“Abscisic acid treatment also differentiated the root and shoot responses; pretreatment induced root survival in hypoxic stress conditions (0.1% O2) but did not induce any increase in the survival of shoots.”
Claim · model-written summary
Abscisic acid pretreatment did not increase shoot survival.
- Taxon
- ArabidopsisArabidopsist0
- Organ / stage
- shootse0
- Treatment
- Abscisic acid treatmente0
- Outcome
- survival of shootse0
- Direction
- did not induce any increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Abscisic acid treatment also differentiated the root and shoot responses; pretreatment induced root survival in hypoxic stress conditions (0.1% O2) but did not induce any increase in the survival of shoots.”
t0“Arabidopsis”
Claim · model-written summary
Cycloheximide blocked root acclimation.
- Taxon
- ArabidopsisArabidopsist0
- Organ / stage
- roote0
- Treatment
- Cycloheximidee0
- Outcome
- acclimatione0
- Direction
- blockede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cycloheximide blocked both root and shoot acclimation”
t0“Arabidopsis”
Claim · model-written summary
Cycloheximide blocked shoot acclimation.
- Taxon
- ArabidopsisArabidopsist0
- Organ / stage
- shoote0
- Treatment
- Cycloheximidee0
- Outcome
- shoot acclimatione0
- Direction
- blockede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cycloheximide blocked both root and shoot acclimation”
t0“Arabidopsis”
The same questions in other papers
flooding · disease · ArabidopsisPositive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 papers →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.