Abstract
Melatonin (MEL) plays important roles in various plant physiology, particularly regulation of plant growth, development, and metabolism. The present study was carried out on Ocimum basilicum L. plant growing in a half-strength Murashige and Skoog media supplemented with 5, 10, 20, and 30 µM MEL-CS nanoparticles (NPs). After four weeks, growing O. basilicum plants were harvested for measuring the changes in growth, physiological, and biochemical attributes. Our results revealed that MEL-CS nanoparticles treatment markedly increased the shoot, and root’s length, fresh, and dry weight, photosynthetic pigments, carbohydrates fractions, total soluble proteins, free amino acids, and antioxidant enzymes activities (CAT, SOD, POD, and PPO). However, the accumulation of the superoxide radical (O₂•−), hydrogen peroxide (H2O2), as well as malonaldehyde (MDA) reduced in basil leaves. The most efficient treatment was 10 µM MEL-CS nanoparticles. At the same time, the concentration of 30 µM was the lowest effective compared to untreated control, normal MEL, and CS treatments. The positive results of current study proved the effective role of MEL-CS nanoparticles in improving plant growth, the measured metabolites, and thereby reducing the oxidative stress (O₂•−, H2O2, and MDA) through stimulating the antioxidant defense system.
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Claims 8
Claim · model-written summary
MEL-CS nanoparticles increased basil shoot and root length and fresh and dry weight.
- Taxon
- Ocimum basilicum L.
Ocimum basilicumt0 - Treatment
- MEL-CS nanoparticlese0
- Outcome
- shoot, and root’s length, fresh, and dry weighte0
- Direction
- increasede0
- Comparator
- untreated controlt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MEL-CS nanoparticles treatment markedly increased the shoot, and root’s length, fresh, and dry weight”
t0“Ocimum basilicum L.”
t1“untreated control”
Claim · model-written summary
MEL-CS nanoparticles increased photosynthetic pigments and carbohydrate fractions.
- Taxon
- Ocimum basilicum L.Ocimum basilicumt0
- Treatment
- MEL-CS nanoparticlese0
- Outcome
- photosynthetic pigments, carbohydrates fractionse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MEL-CS nanoparticles treatment markedly increased the shoot, and root’s length, fresh, and dry weight, photosynthetic pigments, carbohydrates fractions, total soluble proteins, free amino acids, and antioxidant enzymes activities (CAT, SOD, POD, and PPO).”
t0“Ocimum basilicum L.”
Claim · model-written summary
MEL-CS nanoparticles increased total soluble proteins and free amino acids.
- Taxon
- Ocimum basilicum L.Ocimum basilicumt0
- Treatment
- MEL-CS nanoparticlese0
- Outcome
- total soluble proteins, free amino acidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MEL-CS nanoparticles treatment markedly increased the shoot, and root’s length, fresh, and dry weight, photosynthetic pigments, carbohydrates fractions, total soluble proteins, free amino acids, and antioxidant enzymes activities (CAT, SOD, POD, and PPO).”
t0“Ocimum basilicum L.”
Claim · model-written summary
MEL-CS nanoparticles increased CAT, SOD, POD, and PPO antioxidant enzyme activities.
- Taxon
- Ocimum basilicum L.Ocimum basilicumt0
- Treatment
- MEL-CS nanoparticlese0
- Outcome
- antioxidant enzymes activities (CAT, SOD, POD, and PPO)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MEL-CS nanoparticles treatment markedly increased the shoot, and root’s length, fresh, and dry weight, photosynthetic pigments, carbohydrates fractions, total soluble proteins, free amino acids, and antioxidant enzymes activities (CAT, SOD, POD, and PPO).”
t0“Ocimum basilicum L.”
Claim · model-written summary
MEL-CS nanoparticles reduced superoxide radical, hydrogen peroxide, and malonaldehyde accumulation in basil leaves.
- Taxon
- basilOcimum basilicume0
- Organ / stage
- leavese0
- Treatment
- MEL-CS nanoparticlest1
- Outcome
- accumulation of the superoxide radical (O₂•−), hydrogen peroxide (H2O2), as well as malonaldehyde (MDA)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the accumulation of the superoxide radical (O₂•−), hydrogen peroxide (H2O2), as well as malonaldehyde (MDA) reduced in basil leaves.”
t0“Ocimum basilicum L.”
t1“MEL-CS nanoparticles treatment”
Claim · model-written summary
The 10 µM MEL-CS nanoparticle treatment was most efficient.
- Taxon
- Ocimum basilicum L.Ocimum basilicumt0
- Treatment
- 10 µM MEL-CS nanoparticlese0
- Outcome
- most efficiente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most efficient treatment was 10 µM MEL-CS nanoparticles.”
t0“Ocimum basilicum L.”
Claim · model-written summary
The 30 µM treatment was least effective relative to untreated, normal MEL, and CS treatments.
- Taxon
- Ocimum basilicum L.Ocimum basilicumt0
- Treatment
- 30 µMe0
- Outcome
- lowest effectivee0
- Direction
- lowest effectivee0
- Comparator
- untreated control, normal MEL, and CS treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentration of 30 µM was the lowest effective compared to untreated control, normal MEL, and CS treatments.”
t0“Ocimum basilicum L.”
Claim · model-written summary
The authors attribute reduced oxidative stress to stimulation of antioxidant defense by MEL-CS nanoparticles.
- Taxon
- Ocimum basilicum L.Ocimum basilicumt0
- Outcome
- reducing the oxidative stress (O₂•−, H2O2, and MDA)e0
- Qualifier
- stimulating the antioxidant defense systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reducing the oxidative stress (O₂•−, H2O2, and MDA) through stimulating the antioxidant defense system.”
t0“Ocimum basilicum L.”
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nanoparticle · physiology: photosynthesis · Ocimum basilicum (basil)Results agree
3 papers in the same direction as this paper
- positive
- positive
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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.