Abstract
Abstract Stress responses of spring rape to soil hypoxia were investigated during 8-days flooding. Soil air-filled porosity decreased from 25-30% to 0%, oxygen diffusion rate - from 2.6-3.5 to 0.34 μmol O2 m-2 s-1, and redox potential - from 460 to 150mVwithin few hours. Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding and then decreased to 170% of control. Superoxide dismutase activity in roots increased by 27% during first 3 days and then dropped to 60% of control; in the leaves superoxide dismutase activity increased in average by 44%. Ascorbate peroxidase activity in leaves increased by 37% during first 3 days and then decreased to control value. Glutathione reductase activity increased by 45% in roots of flooded plants but did not change in leaves. Proline concentration in leaves increased up to 4-fold on the 3d day of flooding and then decreased to control value. Thus soil flooding induces increase of alcohol dehydrogenase activity and subsequent increase of superoxide dismutase and glutathione reductase activities in roots while the leaves display a few days increase of free proline concentration and ascorbate peroxidase activity, and a long-term increase of superoxide dismutase activity.
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Claims 14
Claim · model-written summary
Soil air-filled porosity decreased from 25-30% to 0% during flooding.
- Taxon
- spring rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Outcome
- Soil air-filled porositye1
- Value
- 25-30% to 0%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e0“Stress responses of spring rape to soil hypoxia were investigated during 8-days flooding”
e1“Soil air-filled porosity decreased from 25-30% to 0%”
Claim · model-written summary
Oxygen diffusion rate decreased from 2.6-3.5 to 0.34 μmol O2 m-2 s-1 during flooding.
- Taxon
- spring rapeBrassica napust0
- Outcome
- oxygen diffusion ratee2
- Value
- 2.6-3.5 to 0.34 μmol O2 m-2 s-1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e0“Stress responses of spring rape to soil hypoxia were investigated during 8-days flooding”
e2“oxygen diffusion rate - from 2.6-3.5 to 0.34 μmol O2 m-2 s-1”
Claim · model-written summary
Redox potential decreased from 460 to 150 mV within a few hours of flooding.
- Taxon
- spring rapeBrassica napust0
- Outcome
- redox potentiale3
- Value
- from 460 to 150mVe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e0“Stress responses of spring rape to soil hypoxia were investigated during 8-days flooding”
e3“redox potential - from 460 to 150mVwithin few hours”
Claim · model-written summary
Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- rootse4
- Treatment
- floodinge4
- Outcome
- Alcohol dehydrogenase activity in rootse4
- Direction
- increasede4
- Value
- up to 7-folde4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e4“Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding and then decreased to 170% of control”
Claim · model-written summary
Alcohol dehydrogenase activity in roots then decreased to 170% of control.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- rootse4
- Treatment
- floodinge4
- Outcome
- Alcohol dehydrogenase activity in rootse4
- Direction
- decreasede4
- Value
- 170% of controle4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e4“Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding and then decreased to 170% of control”
Claim · model-written summary
Superoxide dismutase activity in roots increased by 27% during the first 3 days of flooding.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- rootse5
- Treatment
- floodinge4
- Outcome
- Superoxide dismutase activity in rootse5
- Direction
- increasede5
- Value
- 27%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e4“Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding and then decreased to 170% of control”
e5“Superoxide dismutase activity in roots increased by 27% during first 3 days and then dropped to 60% of control”
Claim · model-written summary
Superoxide dismutase activity in roots then dropped to 60% of control.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- rootse5
- Treatment
- floodinge4
- Outcome
- Superoxide dismutase activity in rootse5
- Direction
- droppede5
- Value
- 60%e5
- Comparator
- controle5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e4“Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding and then decreased to 170% of control”
e5“Superoxide dismutase activity in roots increased by 27% during first 3 days and then dropped to 60% of control”
Claim · model-written summary
Superoxide dismutase activity in leaves increased by 44% on average during flooding.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- leavese6
- Treatment
- floodinge4
- Outcome
- superoxide dismutase activitye6
- Direction
- increasede6
- Value
- 44%e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e4“Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding and then decreased to 170% of control”
e6“in the leaves superoxide dismutase activity increased in average by 44%”
Claim · model-written summary
Ascorbate peroxidase activity in leaves increased by 37% during the first 3 days of flooding.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- leavese7
- Treatment
- floodinge4
- Outcome
- Ascorbate peroxidase activity in leavese7
- Direction
- increasede7
- Value
- 37%e7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e4“Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding and then decreased to 170% of control”
e7“Ascorbate peroxidase activity in leaves increased by 37% during first 3 days and then decreased to control value”
Claim · model-written summary
Ascorbate peroxidase activity then decreased to the control value.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- leavese7
- Treatment
- floodinge4
- Outcome
- Ascorbate peroxidase activitye7
- Direction
- decreasede7
- Comparator
- control valuee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e4“Alcohol dehydrogenase activity in roots increased up to 7-fold after one day of flooding and then decreased to 170% of control”
e7“Ascorbate peroxidase activity in leaves increased by 37% during first 3 days and then decreased to control value”
Claim · model-written summary
Glutathione reductase activity in roots increased by 45% in flooded plants.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- rootse1
- Treatment
- flooded plantse1
- Outcome
- Glutathione reductase activitye1
- Direction
- increasede1
- Value
- 45%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e1“Glutathione reductase activity increased by 45% in roots of flooded plants but did not change in leaves”
Claim · model-written summary
Glutathione reductase activity did not change in leaves of flooded plants.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- leavese1
- Treatment
- flooded plantse1
- Outcome
- Glutathione reductase activitye1
- Direction
- did not changee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e1“Glutathione reductase activity increased by 45% in roots of flooded plants but did not change in leaves”
Claim · model-written summary
Proline concentration in leaves increased up to 4-fold on day 3 of flooding.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- leavese1
- Treatment
- floodinge1
- Outcome
- Proline concentratione1
- Direction
- increasede1
- Value
- up to 4-folde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e1“Proline concentration in leaves increased up to 4-fold on the 3d day of flooding and then decreased to control value”
Claim · model-written summary
Proline concentration in leaves then decreased to the control value.
- Taxon
- spring rapeBrassica napust0
- Organ / stage
- leavese1
- Treatment
- floodinge1
- Outcome
- Proline concentratione1
- Direction
- decreasede1
- Comparator
- control valuee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stress responses of spring rape plants to soil flooding”
e1“Proline concentration in leaves increased up to 4-fold on the 3d day of flooding and then decreased to control value”
The same questions in other papers
flooding · physiology: antioxidant enzymes · Brassica napus (oilseed rape)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
3 papers more in this group
See all 7 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.