Abstract
Abstract Background The biochemical and growth changes resulting from exposure of basil ( Ocimum basilicum L.) seedlings to silver nanoparticles and silver were investigated. Over a two-week period, seedlings were exposed to different concentrations (0, 40, and 80 ppm) of silver nanoparticles and silver. Results Our findings revealed that at concentrations of 40 and 80 ppm, both silver nanoparticles and silver nitrate led to decreased weight, root and shoot length, as well as chlorophyll a and b content. Conversely, these treatments triggered an increase in key biochemical properties, such as total phenols, carotenoids and anthocyanins, with silver nanoparticles showing a more pronounced effect compared to silver nitrate. Moreover, the levels of malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 ) rose proportionally with treatment concentration, with the nanoparticle treatment exhibiting a more substantial increase. Silver content showed a significant upswing in both roots and leaves as treatment concentrations increased. Conclusions Application of varying concentrations of silver nanoparticles and silver nitrate on basil plants resulted in reduced growth and lower chlorophyll content, while simultaneously boosting the production of antioxidant compounds. Notably, anthocyanin, carotenoid, and total phenol increased significantly. However, despite this increase in antioxidant activity, the plant remained unable to fully mitigate the oxidative stress induced by silver and silver nanoparticles.
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Claims 7
Claim · model-written summary
Silver nanoparticles and silver nitrate at 40 and 80 ppm decreased basil weight, root length and shoot length.
- Taxon
- Ocimum basilicum
Ocimum basilicume0 - Organ / stage
- seedlingse0
- Treatment
- silver nanoparticles and silvere0
- Outcome
- weight, root and shoot lengthe1
- Direction
- decreasede1
- Qualifier
- 40 and 80 ppme1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure of basil ( Ocimum basilicum L.) seedlings to silver nanoparticles and silver”
e1“at concentrations of 40 and 80 ppm, both silver nanoparticles and silver nitrate led to decreased weight, root and shoot length”
Claim · model-written summary
Silver nanoparticles and silver nitrate at 40 and 80 ppm decreased chlorophyll a and b content in basil.
- Taxon
- Ocimum basilicumOcimum basilicume0
- Treatment
- silver nanoparticles and silvere0
- Outcome
- chlorophyll a and b contente1
- Direction
- decreasede1
- Qualifier
- 40 and 80 ppme1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure of basil ( Ocimum basilicum L.) seedlings to silver nanoparticles and silver”
e1“at concentrations of 40 and 80 ppm, both silver nanoparticles and silver nitrate led to decreased weight, root and shoot length, as well as chlorophyll a and b content”
Claim · model-written summary
Silver nanoparticles and silver nitrate increased total phenols, carotenoids and anthocyanins in basil; anthocyanin, carotenoid and total phenol increases were significant.
- Taxon
- Ocimum basilicumOcimum basilicume0
- Treatment
- silver nanoparticles and silvere0
- Outcome
- total phenols, carotenoids and anthocyaninse1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure of basil ( Ocimum basilicum L.) seedlings to silver nanoparticles and silver”
e1“Conversely, these treatments triggered an increase in key biochemical properties, such as total phenols, carotenoids and anthocyanins”
e2“anthocyanin, carotenoid, and total phenol increased significantly”
Claim · model-written summary
Silver nanoparticles had a more pronounced effect than silver nitrate on basil total phenols, carotenoids and anthocyanins.
- Taxon
- Ocimum basilicumOcimum basilicume0
- Treatment
- silver nanoparticlese1
- Outcome
- total phenols, carotenoids and anthocyaninse1
- Direction
- more pronouncede1
- Comparator
- silver nitratee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure of basil ( Ocimum basilicum L.) seedlings to silver nanoparticles and silver”
e1“Conversely, these treatments triggered an increase in key biochemical properties, such as total phenols, carotenoids and anthocyanins, with silver nanoparticles showing a more pronounced effect compared to silver nitrate”
Claim · model-written summary
Malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 ) levels in basil rose proportionally with silver treatment concentration.
- Taxon
- Ocimum basilicumOcimum basilicume0
- Treatment
- silver nanoparticles and silvere0
- Outcome
- malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 )e1
- Direction
- rosee1
- Qualifier
- proportionally with treatment concentratione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure of basil ( Ocimum basilicum L.) seedlings to silver nanoparticles and silver”
e1“the levels of malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 ) rose proportionally with treatment concentration”
Claim · model-written summary
The silver nanoparticle treatment produced a more substantial increase in basil malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 ) than the other silver treatment.
- Taxon
- Ocimum basilicumOcimum basilicume0
- Treatment
- nanoparticle treatmente1
- Outcome
- malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 )e1
- Direction
- more substantial increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure of basil ( Ocimum basilicum L.) seedlings to silver nanoparticles and silver”
e1“Moreover, the levels of malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 ) rose proportionally with treatment concentration, with the nanoparticle treatment exhibiting a more substantial increase”
Claim · model-written summary
Silver content in basil roots and leaves increased significantly as treatment concentration increased.
- Taxon
- Ocimum basilicumOcimum basilicume0
- Organ / stage
- roots and leavese1
- Treatment
- silver nanoparticles and silvere0
- Outcome
- Silver contente1
- Direction
- upswinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure of basil ( Ocimum basilicum L.) seedlings to silver nanoparticles and silver”
e1“Silver content showed a significant upswing in both roots and leaves as treatment concentrations increased”
The same questions in other papers
silver nanoparticle · growth · Ocimum basilicum (basil)Positive and negative results
1 in the opposite direction
- positive
silver atom · growth · Ocimum basilicum (basil)Positive and negative results
2 in the opposite direction
- positive
- positive
silver nanoparticle · physiology: oxidative · Ocimum basilicum (basil)Results agree
1 paper in the same direction as this paper
- negative
nanoparticle · physiology: oxidative · Ocimum basilicum (basil)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.