Abstract
A differential response of sodicity was observed on enzymatic and non-enzymatic components of antioxidant system in roots of salt-sensitive RH 8113 and salt-tolerant CS 52 varieties of Indian mustard (Brassica juncea L.). The antioxidative enzymes viz. superoxide dismutase (SOD), glutathione reductase (GR), peroxidase (POX), and ascorbate peroxidase (APX) showed higher basal activities in roots of salt-tolerant CS 52 cultivar as compared to salt-sensitive RH 8113. Imposition of sodicity stress (15-45 ESP) had no effect on SOD and APX activity in roots of CS 52, but it resulted in reduction in activity in salt-sensitive RH 8113. In both varieties, the POX activity decreased progressively with increase in stress level , but the level of decrease was more in RH 8113 as compared to that in salt-tolerant CS 52. Contrarily, GR activity increased in tolerant cultivar CS 52, but showed a continuous reduction with increment in sodic stress in the sensitive cv. RH 8113. The amount of ascorbic acid, reduced glutathione, and ratio of reduced (GSH)/ oxidized glutathione (GSSG) were higher in tolerant than in sensitive ciltivar under sodic conditions. It is inferred that roots of tolerant cv. CS 52 tend to attain greater capacity to perform reaction of antioxidative pathway under sodic conditions to combat sodicity-induced oxidative stress.
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Claims 9
Claim · model-written summary
Tolerant CS 52 had higher basal SOD, GR and POX activities than sensitive RH 8113.
- Taxon
- Indian mustard (Brassica juncea L.)
Brassica junceat0 - Material
- CS 52e0
- Outcome
- superoxide dismutase (SOD), glutathione reductase (GR), peroxidase (POX)e0
- Direction
- highere0
- Comparator
- RH 8113e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“superoxide dismutase (SOD), glutathione reductase (GR), peroxidase (POX), and ascorbate peroxidase (APX) showed higher basal activities in roots of salt-tolerant CS 52 cultivar as compared to salt-sensitive RH 8113.”
t0“Indian mustard (Brassica juncea L.)”
Claim · model-written summary
Tolerant CS 52 had higher basal APX activity.
- Taxon
- Indian mustard (Brassica juncea L.)Brassica junceat0
- Material
- CS 52e0
- Outcome
- ascorbate peroxidase (APX)e0
- Direction
- highere0
- Comparator
- RH 8113e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ascorbate peroxidase (APX) showed higher basal activities in roots of salt-tolerant CS 52 cultivar as compared to salt-sensitive RH 8113.”
t0“Indian mustard (Brassica juncea L.)”
Claim · model-written summary
Sodicity did not change SOD and APX activity in CS 52 roots.
- Taxon
- Indian mustard (Brassica juncea L.)Brassica junceat0
- Material
- CS 52e0
- Treatment
- sodicity stress (15-45 ESP)e0
- Outcome
- SOD and APX activitye0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imposition of sodicity stress (15-45 ESP) had no effect on SOD and APX activity in roots of CS 52”
t0“Indian mustard (Brassica juncea L.)”
Claim · model-written summary
Sodicity reduced SOD and APX activity in RH 8113.
- Taxon
- Indian mustard (Brassica juncea L.)Brassica junceat0
- Material
- RH 8113e0
- Treatment
- sodicity stress (15-45 ESP)e0
- Outcome
- SOD and APX activitye0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imposition of sodicity stress (15-45 ESP) had no effect on SOD and APX activity in roots of CS 52, but it resulted in reduction in activity in salt-sensitive RH 8113.”
t0“Indian mustard (Brassica juncea L.)”
Claim · model-written summary
POX activity decreased with stress in both varieties, more in RH 8113.
- Taxon
- Indian mustard (Brassica juncea L.)Brassica junceat0
- Material
- RH 8113e0
- Treatment
- stress levele0
- Outcome
- POX activitye0
- Direction
- decreasede0
- Comparator
- CS 52e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both varieties, the POX activity decreased progressively with increase in stress level , but the level of decrease was more in RH 8113 as compared to that in salt-tolerant CS 52.”
t0“Indian mustard (Brassica juncea L.)”
Claim · model-written summary
GR activity increased in tolerant CS 52 under sodic stress.
- Taxon
- Indian mustard (Brassica juncea L.)Brassica junceat0
- Material
- CS 52e0
- Treatment
- sodic stresse0
- Outcome
- GR activitye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Contrarily, GR activity increased in tolerant cultivar CS 52, but showed a continuous reduction with increment in sodic stress in the sensitive cv. RH 8113.”
t0“Indian mustard (Brassica juncea L.)”
Claim · model-written summary
GR activity declined with sodic stress in sensitive RH 8113.
- Taxon
- Indian mustard (Brassica juncea L.)Brassica junceat0
- Material
- RH 8113e0
- Treatment
- sodic stresse0
- Outcome
- GR activitye0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Contrarily, GR activity increased in tolerant cultivar CS 52, but showed a continuous reduction with increment in sodic stress in the sensitive cv. RH 8113.”
t0“Indian mustard (Brassica juncea L.)”
Claim · model-written summary
Ascorbic acid, reduced glutathione and GSH/GSSG ratio were higher in tolerant cultivar under sodic conditions.
- Taxon
- Indian mustard (Brassica juncea L.)Brassica junceat0
- Outcome
- amount of ascorbic acid, reduced glutathione, and ratio of reduced (GSH)/ oxidized glutathione (GSSG)e0
- Direction
- highere0
- Comparator
- sensitive ciltivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amount of ascorbic acid, reduced glutathione, and ratio of reduced (GSH)/ oxidized glutathione (GSSG) were higher in tolerant than in sensitive ciltivar under sodic conditions.”
t0“Indian mustard (Brassica juncea L.)”
Claim · model-written summary
Authors infer greater antioxidant pathway capacity in CS 52 roots under sodicity.
- Taxon
- Indian mustard (Brassica juncea L.)Brassica junceat0
- Material
- CS 52e0
- Outcome
- greater capacity to perform reaction of antioxidative pathwaye0
- Qualifier
- under sodic conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“roots of tolerant cv. CS 52 tend to attain greater capacity to perform reaction of antioxidative pathway under sodic conditions to combat sodicity-induced oxidative stress.”
t0“Indian mustard (Brassica juncea L.)”
The same questions in other papers
salinity · physiology: antioxidant enzymes · Brassica juncea (Indian mustard)Positive and negative results
2 in the opposite direction
- positive
- positive
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.