Abstract
Role of antioxidative enzyme activity in salt stress and salinity screening was studied in the callus of two rice cultivars (White ponni and BPT-5204). The antioxidant activities of the rice callus were determined by analyzing three enzymes activity namely, Superoxide Dismutase (SOD), Catalase (CAT) and Ascorbate Peroxidase (APX) grown under saline condition. Enzymes were analysed in 15 days old rice callus culture grown under salt stress and non-saline conditions. All the three enzyme activities were varied according to salt concentrations in the medium. SOD and CAT activities were higher in BPT-5204 but APX activities were higher in White ponni. Among the NaCl treatment, medium containing 40 mM NaCl observed higher enzyme activity than 20 and 30 mM NaCl. Under non saline condition there is no significant difference was noticed in the enzymatic activities and callus growth parameter in both the cultivars. Observation was carried out on the change in callus growth parameter like weight and color of the callus. There was a significant reduction in weight and also change in colour of the callus was noticed with respect to higher salt concentrations (30 and 40 mM NaCl) in the medium for both the cultivars. The observed data indicated that rice plant responds well to salt-induced oxidative stress by increasing their enzymatic antioxidant defense systems. The antioxidant enzyme activity play vital role in defense against salt stress and this may help to screen the salt tolerant line grown under in vitro condition in early callus stage itself.
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Claims 9
Claim · model-written summary
SOD and CAT activities were higher in the BPT-5204 callus than in White ponni.
- Taxon
- rice
Oryza sativae1 - Material
- BPT-5204e1
- Organ / stage
- calluse1
- Outcome
- SOD and CAT activitiese2
- Direction
- highere2
- Comparator
- White ponnie2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Role of antioxidative enzyme activity in salt stress and salinity screening was studied in the callus of two rice cultivars (White ponni and BPT-5204)”
e2“SOD and CAT activities were higher in BPT-5204 but APX activities were higher in White ponni”
Claim · model-written summary
APX activity was higher in the White ponni callus than in BPT-5204.
- Taxon
- riceOryza sativae1
- Material
- White ponnie1
- Organ / stage
- calluse1
- Outcome
- APX activitiese2
- Direction
- highere2
- Comparator
- BPT-5204e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Role of antioxidative enzyme activity in salt stress and salinity screening was studied in the callus of two rice cultivars (White ponni and BPT-5204)”
e2“SOD and CAT activities were higher in BPT-5204 but APX activities were higher in White ponni”
Claim · model-written summary
Callus on 40 mM NaCl had higher enzyme activity than on 20 and 30 mM NaCl.
- Taxon
- riceOryza sativae1
- Organ / stage
- calluse1
- Treatment
- 40 mM NaCle3
- Outcome
- enzyme activitye3
- Direction
- highere3
- Comparator
- 20 and 30 mM NaCle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Role of antioxidative enzyme activity in salt stress and salinity screening was studied in the callus of two rice cultivars (White ponni and BPT-5204)”
e3“Among the NaCl treatment, medium containing 40 mM NaCl observed higher enzyme activity than 20 and 30 mM NaCl”
Claim · model-written summary
Under non-saline condition the enzyme activities and callus growth parameters did not differ significantly between the two cultivars.
- Taxon
- riceOryza sativae1
- Treatment
- non saline conditione4
- Outcome
- enzymatic activities and callus growth parametere4
- Direction
- no significant differencee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Role of antioxidative enzyme activity in salt stress and salinity screening was studied in the callus of two rice cultivars (White ponni and BPT-5204)”
e4“Under non saline condition there is no significant difference was noticed in the enzymatic activities and callus growth parameter in both the cultivars”
Claim · model-written summary
Higher NaCl concentrations (30 and 40 mM) significantly reduced callus weight.
- Taxon
- riceOryza sativae1
- Material
- White ponni and BPT-5204e1
- Organ / stage
- calluse1
- Treatment
- higher salt concentrations (30 and 40 mM NaCl)e5
- Outcome
- weighte5
- Direction
- reductione5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Role of antioxidative enzyme activity in salt stress and salinity screening was studied in the callus of two rice cultivars (White ponni and BPT-5204)”
e5“There was a significant reduction in weight and also change in colour of the callus was noticed with respect to higher salt concentrations (30 and 40 mM NaCl) in the medium for both the cultivars”
Claim · model-written summary
Higher NaCl concentrations (30 and 40 mM) changed the colour of the callus.
- Taxon
- riceOryza sativae1
- Material
- White ponni and BPT-5204e1
- Organ / stage
- calluse1
- Treatment
- higher salt concentrations (30 and 40 mM NaCl)e5
- Outcome
- colour of the calluse5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Role of antioxidative enzyme activity in salt stress and salinity screening was studied in the callus of two rice cultivars (White ponni and BPT-5204)”
e5“There was a significant reduction in weight and also change in colour of the callus was noticed with respect to higher salt concentrations (30 and 40 mM NaCl) in the medium for both the cultivars”
Claim · model-written summary
All three antioxidant enzyme activities varied with the NaCl concentration in the medium.
- Taxon
- riceOryza sativae1
- Treatment
- salt concentrations in the mediume6
- Outcome
- enzyme activitiese6
- Direction
- variede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Role of antioxidative enzyme activity in salt stress and salinity screening was studied in the callus of two rice cultivars (White ponni and BPT-5204)”
e6“All the three enzyme activities were varied according to salt concentrations in the medium”
Claim · model-written summary
Rice callus responds to salt-induced oxidative stress by increasing its enzymatic antioxidant defence systems.
- Taxon
- riceOryza sativae0
- Treatment
- salt-induced oxidative stresse0
- Outcome
- enzymatic antioxidant defense systemse0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice plant responds well to salt-induced oxidative stress by increasing their enzymatic antioxidant defense systems”
Claim · model-written summary
Antioxidant enzyme activity may help to screen salt-tolerant rice lines in vitro at the early callus stage.
- Taxon
- riceOryza sativae1
- Organ / stage
- early callus stagee7
- Outcome
- screen the salt tolerant linee7
- Setting
- in vitro conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Role of antioxidative enzyme activity in salt stress and salinity screening was studied in the callus of two rice cultivars (White ponni and BPT-5204)”
e7“The antioxidant enzyme activity play vital role in defense against salt stress and this may help to screen the salt tolerant line grown under in vitro condition in early callus stage itself”
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