Abstract
The effects of silicon oxide (SiO 2 ) nanoparticles at concentrations of 50, 100, 200, 400, and 800 mg/L on Triticum aestivum L. seedlings were investigated. We showed that SiO 2 nanoparticles, at concentrations higher 200 mg/L, had negative impacts on wheat seedlings. At these concentrations, SiO 2 nanoparticles significantly decreased roots and shoots fresh weight, decreased roots and shoots dry weight, decreased amounts of chlorophyll a and b in leaves, decreased amount of carotenoids in leaves, increased proline content in leaves, increased lipid peroxidation in leaves, and increased catalase activity in leaves. Results of this study indicate that at lower concentrations (such as 50 and 100 mg/L), SiO 2 nanoparticles not only have negative effects on wheat seedlings, but can have even some positive effects.
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Claims 5
Claim · model-written summary
High nanoparticle concentrations decreased root and shoot fresh weight.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- SiO 2 nanoparticles, at concentrations higher 200 mg/Le0
- Outcome
- roots and shoots fresh weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SiO 2 nanoparticles, at concentrations higher 200 mg/L, had negative impacts on wheat seedlings. At these concentrations, SiO 2 nanoparticles significantly decreased roots and shoots fresh weight”
Claim · model-written summary
High nanoparticle concentrations decreased root and shoot dry weight.
- Taxon
- wheatTriticum aestivume0
- Treatment
- SiO 2 nanoparticles, at concentrations higher 200 mg/Le0
- Outcome
- roots and shoots dry weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SiO 2 nanoparticles, at concentrations higher 200 mg/L, had negative impacts on wheat seedlings. At these concentrations, SiO 2 nanoparticles significantly decreased roots and shoots fresh weight, decreased roots and shoots dry weight”
Claim · model-written summary
High nanoparticle concentrations decreased leaf chlorophyll a, chlorophyll b and carotenoids.
- Taxon
- wheat seedlingsTriticum aestivumt0
- Treatment
- SiO 2 nanoparticlese0
- Outcome
- chlorophyll a and b in leaves, decreased amount of carotenoids in leavese0
- Direction
- decreasede0
- Qualifier
- at concentrations higher 200 mg/Le1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SiO 2 nanoparticles significantly decreased roots and shoots fresh weight, decreased roots and shoots dry weight, decreased amounts of chlorophyll a and b in leaves, decreased amount of carotenoids in leaves”
e1“at concentrations higher 200 mg/L”
t0“wheat seedlings”
Claim · model-written summary
High nanoparticle concentrations increased leaf proline content, lipid peroxidation and catalase activity.
- Taxon
- wheat seedlingsTriticum aestivumt0
- Treatment
- SiO 2 nanoparticles, at concentrations higher 200 mg/Le1
- Outcome
- proline content in leaves, increased lipid peroxidation in leaves, and increased catalase activity in leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased proline content in leaves, increased lipid peroxidation in leaves, and increased catalase activity in leaves”
e1“SiO 2 nanoparticles, at concentrations higher 200 mg/L”
t0“wheat seedlings”
Claim · model-written summary
Lower nanoparticle concentrations could have some positive effects on wheat seedlings.
- Taxon
- wheat seedlingsTriticum aestivume0
- Treatment
- SiO 2 nanoparticlese0
- Outcome
- negative effects on wheat seedlings, but can have even some positive effectse0
- Qualifier
- at lower concentrations (such as 50 and 100 mg/L)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at lower concentrations (such as 50 and 100 mg/L), SiO 2 nanoparticles not only have negative effects on wheat seedlings, but can have even some positive effects”
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