Abstract
The present study was carried out with the aim of (i) evaluating the effect of chitosan on the free radical scavenging activity, ferric reducing antioxidant power (FRAP) activity, 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity and chitinase activity in T. aestivum L. and (ii) evaluating the effect of different concentration of chitosan on enzyme activities such as phenylalanine ammonia-lyase (PAL) activity and beta- 1, 3-glucanase activity in T. aestivum L. To achieve these goals, the 15-days-old wheat seedlings were treated with different concentrations of chitosan, such as 1-4 mg/mL and further, the enzyme assays were carried out. The results obtained showed that treatment with 0.5 mg/mL of chitosan induced the maximum free radical scavenging activity and DPPH activity in the plant, while treatment with 1.0 mg/mL of chitosan induced the maximum FRAP activity. The response of wheat seedlings to an increase in oxidative stress was correlated with chitosan treatment. Additionally, treatment with 1.0 mg/mL of chitosan to the plant also showed maximum chitinase enzymatic activity in wheat seedlings. Chitosan treatment also elicited enzyme activities such as PAL and beta-1, 3-glucanases. Different concentrations of chitosan treatment showed increasing patterns of PAL activity from 0 hr, which peaked between 24 - 48 hr and thereafter, started decreasing post 72 hr. Similarly, chitosan treatments in wheat seedlings showed an increasing activity of beta-1, 3-glucanase from 0 hr till 48 hr and started decreasing at 72 hr. Overall, the findings showed that chitosan exhibits a protective nature against oxidative stress.
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Claims 8
Claim · model-written summary
At 0.5 mg/mL, chitosan maximized free-radical scavenging and DPPH activity in wheat.
- Treatment
- 0.5 mg/mL of chitosane0
- Outcome
- free radical scavenging activity and DPPH activitye0
- Direction
- maximume0
Not reportedTaxonComparator
Verbatim
e0“treatment with 0.5 mg/mL of chitosan induced the maximum free radical scavenging activity and DPPH activity in the plant”
Claim · model-written summary
At 1.0 mg/mL, chitosan maximized wheat FRAP activity.
Not reportedTaxonComparator
Verbatim
e0“treatment with 1.0 mg/mL of chitosan induced the maximum FRAP activity.”
Claim · model-written summary
Wheat seedling oxidative-stress response correlated with chitosan treatment.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- chitosan treatmente0
- Outcome
- response of wheat seedlings to an increase in oxidative stresse0
- Direction
- correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of wheat seedlings to an increase in oxidative stress was correlated with chitosan treatment.”
Claim · model-written summary
At 1.0 mg/mL, chitosan maximized wheat chitinase activity.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 1.0 mg/mL of chitosane0
- Outcome
- chitinase enzymatic activitye0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment with 1.0 mg/mL of chitosan to the plant also showed maximum chitinase enzymatic activity in wheat seedlings.”
Claim · model-written summary
Chitosan elicited wheat PAL and beta-1,3-glucanase activity.
Not reportedTaxonComparator
Verbatim
e0“Chitosan treatment also elicited enzyme activities such as PAL and beta-1, 3-glucanases.”
Claim · model-written summary
PAL activity rose after chitosan, peaked at 24–48 hours and declined after 72 hours.
- Treatment
- Different concentrations of chitosan treatmente0
- Outcome
- PAL activitye0
- Direction
- increasing patternse0
- Qualifier
- peaked between 24 - 48 hr and thereafter, started decreasing post 72 hre0
Not reportedTaxonComparator
Verbatim
e0“Different concentrations of chitosan treatment showed increasing patterns of PAL activity from 0 hr, which peaked between 24 - 48 hr and thereafter, started decreasing post 72 hr.”
Claim · model-written summary
Beta-1,3-glucanase activity rose to 48 hours after chitosan and declined at 72 hours.
- Taxon
- wheatTriticum aestivume0
- Treatment
- chitosan treatmentse0
- Outcome
- beta-1, 3-glucanasee0
- Direction
- increasinge0
- Qualifier
- started decreasing at 72 hre0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan treatments in wheat seedlings showed an increasing activity of beta-1, 3-glucanase from 0 hr till 48 hr and started decreasing at 72 hr.”
Claim · model-written summary
The authors interpret chitosan as protective against oxidative stress.
Not reportedTaxon
Verbatim
e0“chitosan exhibits a protective nature against oxidative stress.”
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