Abstract
To investigate metal nanoparticle-induced phytotoxicity, Brassica nigra seeds were exposed to 50–1000 mg L−1 ZnO nanoparticles in culture media and 100–1000 mg kg−1 in soil. Plant length and weight were adversely affected in culture conditions, but with soil the effect was not significant. Determination of the radical-scavenging potential revealed that soil grown plants were less stressed than plants grown on culture medium. The total antioxidant and reducing power potential of soil grown plants were less variable compared to plants grown on culture medium. Total phenolic and flavonoid concentrations varied in plants, which changed with the nanoparticle’s concentrations in medium and soil. High performance liquid chromatography analysis showed that rutin was the major antioxidative molecule that significantly increased in nanoparticles-stressed B. nigra plants.
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Claims 6
Claim · model-written summary
ZnO nanoparticles adversely affected plant length and weight in culture.
- Taxon
- Brassica nigra
_leaves.JPG?width=60)
Brassica nigrat0 - Treatment
- ZnO nanoparticlest0
- Outcome
- Plant length and weighte0
- Direction
- adversely affectede0
- Setting
- culture conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_leaves.JPG?width=500)
Verbatim
e0“Plant length and weight were adversely affected in culture conditions, but with soil the effect was not significant.”
t0“Brassica nigra (L.) to ZnO nanoparticles”
Claim · model-written summary
Effects on plant length and weight in soil were not significant.
- Taxon
- Brassica nigraBrassica nigrat0
- Treatment
- ZnO nanoparticlest0
- Outcome
- Plant length and weighte0
- Setting
- soile0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant length and weight were adversely affected in culture conditions, but with soil the effect was not significant.”
t0“Brassica nigra (L.) to ZnO nanoparticles”
Claim · model-written summary
Soil grown plants were less stressed than culture grown plants by radical scavenging potential.
- Taxon
- Brassica nigraBrassica nigrat0
- Outcome
- less stressede0
- Direction
- lesse0
- Comparator
- plants grown on culture mediume0
- Setting
- soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Determination of the radical-scavenging potential revealed that soil grown plants were less stressed than plants grown on culture medium.”
t0“Brassica nigra”
Claim · model-written summary
Total antioxidant and reducing power were less variable in soil grown plants.
- Taxon
- Brassica nigraBrassica nigrat0
- Outcome
- total antioxidant and reducing power potentiale0
- Direction
- less variablee0
- Comparator
- plants grown on culture mediume0
- Setting
- soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total antioxidant and reducing power potential of soil grown plants were less variable compared to plants grown on culture medium.”
t0“Brassica nigra”
Claim · model-written summary
Phenolic and flavonoid concentrations varied with nanoparticle concentrations in medium and soil.
- Taxon
- Brassica nigraBrassica nigrat0
- Treatment
- nanoparticle’s concentrationse0
- Outcome
- Total phenolic and flavonoid concentrationse0
- Setting
- medium and soile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total phenolic and flavonoid concentrations varied in plants, which changed with the nanoparticle’s concentrations in medium and soil.”
t0“Brassica nigra”
Claim · model-written summary
Rutin significantly increased in nanoparticle stressed plants.
- Taxon
- B. nigraBrassica nigrae0
- Treatment
- nanoparticles-stressede0
- Outcome
- rutine0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rutin was the major antioxidative molecule that significantly increased in nanoparticles-stressed B. nigra plants.”
The same questions in other papers
nanoparticle · growth · Brassica nigra (black mustard)Positive and negative results
2 in the opposite direction
- positive
- positive
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.