Abstract
THE CURRENT study was conducted during season 2013 on …… one-year-old mango seedlings of Golek, Misk, Hindi Besinnara, Sukkary and Zebda cvs. to investigate the activities of both enzymatic and non-enzymatic components of the antioxidant system in mango under salinity stress. Plants were subjected to three levels of salinity (0, 1000 and 2000 mg L-1). The activities of peroxidase, (POD), catalase, (CAT), polyphenyl oxidase (PPO), membrane stability index were determined and leaf content of reduced glutathione, chlorophyll, ascorbate and total sugars were determined. Activities of antioxidant enzymes, membrane stability index, ascorbate and reduced glutathione contents were significantly altered by salinity treatments. Leaves of salt-stressed plant exhibited a greater activity of peroxidase and polyphenyl oxidase while reduced activity of catalase. Reduced glutathione and membrane stability index increased by increasing salinity level. Salinity effect was less evident on chlorophyll and total sugar content. The differences between the studied cultivars were evident in most of the studied parameters. Zebda cultivar showed a higher antioxidant potential which provide a resistance mechanism agent salinity stress.
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Claims 6
Claim · model-written summary
Salt stress increased peroxidase and polyphenyl oxidase activity in mango leaves.
- Taxon
- mango
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Mangifera indicae1 - Organ / stage
- Leavese0
- Treatment
- salt-stressede0
- Outcome
- activity of peroxidase and polyphenyl oxidasee0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“Leaves of salt-stressed plant exhibited a greater activity of peroxidase and polyphenyl oxidase”
e1“mango seedlings”
Claim · model-written summary
Salt stress reduced catalase activity in mango leaves.
- Taxon
- mangoMangifera indicae2
- Organ / stage
- Leavese1
- Treatment
- salt-stressede1
- Outcome
- activity of catalasee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced activity of catalase”
e1“Leaves of salt-stressed plant”
e2“mango seedlings”
Claim · model-written summary
Reduced glutathione and membrane stability index increased with salinity.
- Taxon
- mangoMangifera indicae1
- Treatment
- increasing salinity levele0
- Outcome
- Reduced glutathione and membrane stability indexe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced glutathione and membrane stability index increased by increasing salinity level”
e1“mango seedlings”
Claim · model-written summary
Salinity had a smaller effect on chlorophyll and total sugars.
- Taxon
- mangoMangifera indicae1
- Outcome
- chlorophyll and total sugar contente0
- Direction
- less evidente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity effect was less evident on chlorophyll and total sugar content”
e1“mango seedlings”
Claim · model-written summary
Mango cultivars differed in most studied parameters.
- Taxon
- mangoMangifera indicae1
- Outcome
- differences between the studied cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The differences between the studied cultivars were evident in most of the studied parameters.”
e1“mango seedlings”
Claim · model-written summary
Zebda had higher antioxidant potential.
- Taxon
- mangoMangifera indicae1
- Material
- Zebdae0
- Outcome
- antioxidant potentiale0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zebda cultivar showed a higher antioxidant potential”
e1“mango seedlings”