Abstract
The amount of nanoparticles that enters the environment has increased substantially in the last years. How they might affect plant characteristics and the bacterial community structure when they enter the soil, however, is still debated, as there is a continuous interaction between them. In this study, we determined the effect of silver (Ag-NPs) and hematite (α-Fe2O3-NPs) nanoparticles (0.15 g kg−1) on the characteristics of common bean (Phaseolus vulgaris L.) and the rhizosphere, non-rhizosphere and uncultivated soil bacterial community. The application of Ag-NPs or α-Fe2O3-NPs did not affect plant growth, but changed the amount of some heavy metals in the roots and aerial parts. The application of nanoparticles had a limited effect on the diversity, structure and functional profile of the soil and rhizosphere bacterial communities, but they were altered by cultivation of the bean plants and changed over time. It was found that application of Ag-NPs or α-Fe2O3-NPs had no effect on bean plant growth and only a small effect on the bacterial community structure and its putative metabolic functions. These findings show that in a complex system, such as a soil, different factors might affect the bacterial community structure and alter the possible effect of nanoparticles on it.
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Claims 7
Claim · model-written summary
Ag-NPs did not affect bean plant growth.
- Taxon
- Phaseolus vulgaris L.
Phaseolus vulgarist0 - Treatment
- Ag-NPse1
- Outcome
- plant growthe1
- Direction
- did not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e1“The application of Ag-NPs or α-Fe2O3-NPs did not affect plant growth, but changed the amount of some heavy metals in the roots and aerial parts”
Claim · model-written summary
α-Fe2O3-NPs did not affect bean plant growth.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- α-Fe2O3-NPse1
- Outcome
- plant growthe1
- Direction
- did not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e1“The application of Ag-NPs or α-Fe2O3-NPs did not affect plant growth, but changed the amount of some heavy metals in the roots and aerial parts”
Claim · model-written summary
Ag-NPs changed the amount of some heavy metals in bean roots and aerial parts.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Organ / stage
- roots and aerial partse1
- Treatment
- Ag-NPse1
- Outcome
- the amount of some heavy metalse1
- Direction
- changede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e1“The application of Ag-NPs or α-Fe2O3-NPs did not affect plant growth, but changed the amount of some heavy metals in the roots and aerial parts”
Claim · model-written summary
α-Fe2O3-NPs changed the amount of some heavy metals in bean roots and aerial parts.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Organ / stage
- roots and aerial partse1
- Treatment
- α-Fe2O3-NPse1
- Outcome
- the amount of some heavy metalse1
- Direction
- changede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e1“The application of Ag-NPs or α-Fe2O3-NPs did not affect plant growth, but changed the amount of some heavy metals in the roots and aerial parts”
Claim · model-written summary
Nanoparticle application had a limited effect on the diversity, structure and functional profile of soil and rhizosphere bacterial communities.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- nanoparticlese2
- Interactor
- rhizosphere bacterial communitiese2other
- Outcome
- diversity, structure and functional profile of the soil and rhizosphere bacterial communitiese2
- Direction
- limited effecte2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e2“The application of nanoparticles had a limited effect on the diversity, structure and functional profile of the soil and rhizosphere bacterial communities”
Claim · model-written summary
Bacterial communities were altered by cultivation of the bean plants.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- cultivation of the bean plantse3
- Interactor
- rhizosphere bacterial communitiese2other
- Outcome
- bacterial communitiese2
- Direction
- alterede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e2“The application of nanoparticles had a limited effect on the diversity, structure and functional profile of the soil and rhizosphere bacterial communities”
e3“but they were altered by cultivation of the bean plants and changed over time”
Claim · model-written summary
Bacterial communities changed over time.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- over timee3
- Interactor
- rhizosphere bacterial communitiese2other
- Outcome
- bacterial communitiese2
- Direction
- changede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e2“The application of nanoparticles had a limited effect on the diversity, structure and functional profile of the soil and rhizosphere bacterial communities”
e3“but they were altered by cultivation of the bean plants and changed over time”
The same questions in other papers
silver atom · growth · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- negative
nanoparticle · soil: biology · Phaseolus vulgaris (common bean)Positive and negative results
2 in the opposite direction
- positive
- positive
nanoparticle · growth · Phaseolus vulgaris (common bean)Positive and negative results
7 papers in the same direction as this paper · 41 in the opposite direction
- positive
- positive
- positive
45 papers more in this group
See all 49 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.