Abstract
In order to explore methodology for improving the resistance of pea primary roots to H2O2 stress,physiological characteristics of pea primary roots were studied using apea variety Longwan 1treated with Ca2+under H2O2 stress.Several physiological indexes like the curvature rate and root activity of pea primary roots were measured using physiological and biochemical methods.Some other indexes like the relative membrane permeability of primary roots,the concentration of malondialdehyde(MDA)in primary roots,the activities of superoxide dismutase(SOD),peroxidase(POD),catalase(CAT)and ascorbate peroxidase(APX)enzymes were also measured.The normal growth of pea primary roots under 80mmol/L H2O2 stress was obviously inhibited.However,the inhibitory effect on root growth was reduced and the root activity was restored after treating with Ca2+.The MDA content decreased 37.32% compared to controls after treatment with 10mmol/L exogenous Ca2+.The activities of four enzymes including POD,SOD,CAT and APX were enhanced and reached 51.946U/(mg·min),865.174U/g FW,1.9739mmol/(L·g·min)and 2.569μmol/(L·g·min),respectively.In summary,Ca2+(10mmol/L)significantly alleviated the damage to pea primary root cell membranes caused by H2O2 stress,reduced membrane permeability and promoted the antioxidant capacity of pea primary roots for stress resistance.
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Claims 11
Claim · model-written summary
H2O2 stress at 80 mmol/L obviously inhibited normal growth of pea primary roots.
- Taxon
- pea
Lathyrus oleraceuse1 - Treatment
- 80mmol/L H2O2 stresse1
- Outcome
- normal growthe1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The normal growth of pea primary roots under 80mmol/L H2O2 stress was obviously inhibited”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ reduced the inhibitory effect of H2O2 stress on pea primary root growth.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Ca2+e2
- Outcome
- inhibitory effect on root growthe2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the inhibitory effect on root growth was reduced and the root activity was restored after treating with Ca2+”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ restored root activity of pea primary roots under H2O2 stress.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Ca2+e2
- Outcome
- root activitye2
- Direction
- restorede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the inhibitory effect on root growth was reduced and the root activity was restored after treating with Ca2+”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ at 10 mmol/L decreased MDA content by 37.32% compared with controls.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- 10mmol/L exogenous Ca2+e3
- Outcome
- MDA contente3
- Direction
- decreasede3
- Value
- 37.32%e3
- Comparator
- controlse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The MDA content decreased 37.32% compared to controls after treatment with 10mmol/L exogenous Ca2+”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ enhanced POD activity in pea primary roots under H2O2 stress.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Ca2+e2
- Gene
- PODe4
- Outcome
- activitiese4
- Direction
- enhancede4
- Value
- 51.946U/(mg·min)e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The activities of four enzymes including POD,SOD,CAT and APX were enhanced and reached 51.946U/(mg·min),865.174U/g FW,1.9739mmol/(L·g·min)and 2.569μmol/(L·g·min),respectively”
e2“after treating with Ca2+”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ enhanced SOD activity in pea primary roots under H2O2 stress.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Ca2+e2
- Gene
- SODe4
- Outcome
- activitiese4
- Direction
- enhancede4
- Value
- 865.174U/g FWe4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The activities of four enzymes including POD,SOD,CAT and APX were enhanced and reached 51.946U/(mg·min),865.174U/g FW,1.9739mmol/(L·g·min)and 2.569μmol/(L·g·min),respectively”
e2“after treating with Ca2+”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ enhanced CAT activity in pea primary roots under H2O2 stress.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Ca2+e2
- Gene
- CATe4
- Outcome
- activitiese4
- Direction
- enhancede4
- Value
- 1.9739mmol/(L·g·min)e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The activities of four enzymes including POD,SOD,CAT and APX were enhanced and reached 51.946U/(mg·min),865.174U/g FW,1.9739mmol/(L·g·min)and 2.569μmol/(L·g·min),respectively”
e2“after treating with Ca2+”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ enhanced APX activity in pea primary roots under H2O2 stress.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Ca2+e2
- Gene
- APXe4
- Outcome
- activitiese4
- Direction
- enhancede4
- Value
- 2.569μmol/(L·g·min)e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The activities of four enzymes including POD,SOD,CAT and APX were enhanced and reached 51.946U/(mg·min),865.174U/g FW,1.9739mmol/(L·g·min)and 2.569μmol/(L·g·min),respectively”
e2“after treating with Ca2+”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ at 10 mmol/L significantly alleviated the damage to pea primary root cell membranes caused by H2O2 stress.
- Taxon
- peaLathyrus oleraceuse6
- Treatment
- Ca2+(10mmol/L)e6
- Outcome
- damage to pea primary root cell membranese6
- Direction
- alleviatede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Ca2+(10mmol/L)significantly alleviated the damage to pea primary root cell membranes caused by H2O2 stress, reduced membrane permeability and promoted the antioxidant capacity of pea primary roots for stress resistance”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ at 10 mmol/L reduced membrane permeability of pea primary roots under H2O2 stress.
- Taxon
- peaLathyrus oleraceuse6
- Treatment
- Ca2+(10mmol/L)e6
- Outcome
- membrane permeabilitye6
- Direction
- reducede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Ca2+(10mmol/L)significantly alleviated the damage to pea primary root cell membranes caused by H2O2 stress, reduced membrane permeability and promoted the antioxidant capacity of pea primary roots for stress resistance”
t0“in pea under H_2O_2 stress”
Claim · model-written summary
Ca2+ at 10 mmol/L promoted the antioxidant capacity of pea primary roots for stress resistance.
- Taxon
- peaLathyrus oleraceuse6
- Treatment
- Ca2+(10mmol/L)e6
- Outcome
- antioxidant capacitye6
- Direction
- promotede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Ca2+(10mmol/L)significantly alleviated the damage to pea primary root cell membranes caused by H2O2 stress, reduced membrane permeability and promoted the antioxidant capacity of pea primary roots for stress resistance”
t0“in pea under H_2O_2 stress”
The same questions in other papers
hydrogen peroxide · growth · Lathyrus oleraceus (pea)Results differ
4 in the opposite direction
- positive
- positive
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1 paper more in this group
See all 5 papers →calcium(2+) · growth · Lathyrus oleraceus (pea)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
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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.