Abstract
Plant growth is usually compromised by abiotic and biotic stressors that decrease germination, yield, and synthesis of useful metabolites. Zinc oxide nanoparticles (ZnO-NPs) have exhibited potential in increasing plant tolerance and metabolic yield. This research assesses the impact of ZnO-NPs on Stevia rebaudiana and Ocimum basilicum in a randomized pot experiment with seed priming at concentrations of 0–250 mg L−1. The nanoparticles were identified through UV-vis spectroscopy (maximum absorption at 380 nm), FTIR, and XRD, proving their crystalline hexagonal wurtzite nature and functional groups (C = O, C-O, O-H). Germination in O. basilicum was highest at 50 mg L−1, with maximum shoot and root growth at 100 mg L−1, whereas Stevia showed a positive response only at 50 mg L−1. GC-MS analysis revealed remarkable enhancement of fatty acids, phenols, and terpenes in ZnO-NP treatment. These observations imply ZnO-NPs have the potential to promote plant growth and secondary metabolite production, yet species- and dose-dependent effects need to be considered with care.
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Claims 5
Claim · model-written summary
Ocimum basilicum germination was highest at 50 mg L−1.
- Taxon
- O. basilicum
Ocimum basilicume0 - Treatment
- 50 mg L−1e0
- Outcome
- Germinatione0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination in O. basilicum was highest at 50 mg L−1”
Claim · model-written summary
Ocimum basilicum shoot growth was maximum at 100 mg L−1.
- Taxon
- Ocimum basilicumOcimum basilicumt0
- Organ / stage
- shoote0
- Treatment
- 100 mg L−1e0
- Outcome
- growthe0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with maximum shoot and root growth at 100 mg L−1”
t0“Ocimum basilicum”
Claim · model-written summary
Ocimum basilicum root growth was maximum at 100 mg L−1.
- Taxon
- Ocimum basilicumOcimum basilicumt0
- Treatment
- 100 mg L−1e0
- Outcome
- root growthe0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with maximum shoot and root growth at 100 mg L−1”
t0“Ocimum basilicum”
Claim · model-written summary
Stevia responded positively only at 50 mg L−1.
SteviaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas Stevia showed a positive response only at 50 mg L−1”
Claim · model-written summary
ZnO nanoparticle treatment enhanced fatty acids, phenols and terpenes.
- Taxon
- Stevia rebaudiana and Ocimum basilicumOcimum basilicum
Stevia rebaudianat0 - Treatment
- ZnO-NP treatmente0
- Outcome
- fatty acids, phenols, and terpenese0
- Direction
- enhancemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GC-MS analysis revealed remarkable enhancement of fatty acids, phenols, and terpenes in ZnO-NP treatment”
t0“Stevia rebaudiana and Ocimum basilicum”
The same questions in other papers
zinc oxide · quality: oil · Ocimum basilicum (basil)Results agree
1 paper in the same direction as this paper
- positive
nanoparticle · quality: oil · Ocimum basilicum (basil)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
5 papers more in this group
See all 9 papers →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.