Abstract
The effects of plant growth-promoting rhizobacteria of the genus Pseudomonas on the growth and elemental composition of barley plants were examined in pot experiments under artificial contamination of soil with water-soluble Pb compounds. Bacterial inoculation reduced Pb uptake by plants at the beginning and in the first half of the growing season due to the binding of the heavy metal in organic compounds and stable complexes in the rhizosphere soil without changes in the soil medium reaction. The bacterium P. fluorescens 21 had a maximum capacity for Pb immobilization and contributed to the minimum metal uptake into plants. Application of bacterium P. fluorescens 21 eliminated Pb toxicity and increased the plant weight to the level characteristic of the uncontaminated soil.
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Claims 6
Claim · model-written summary
Bacterial inoculation reduced lead uptake by barley plants early in the growing season.
- Taxon
- barley plants
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- Bacterial inoculatione0
- Interactor
- Pseudomonas
Pseudomonast0symbiont - Outcome
- Pb uptake by plantse0
- Direction
- reducede0
- Qualifier
- at the beginning and in the first half of the growing seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Bacterial inoculation reduced Pb uptake by plants at the beginning and in the first half of the growing season”
t0“Pseudomonas on the growth and elemental composition of barley plants”
Claim · model-written summary
Inoculation bound lead in organic compounds and stable complexes in barley rhizosphere soil.
- Taxon
- barley plantsHordeum vulgaret0
- Outcome
- binding of the heavy metal in organic compounds and stable complexes in the rhizosphere soile0
- Qualifier
- in the rhizosphere soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“due to the binding of the heavy metal in organic compounds and stable complexes in the rhizosphere soil”
t0“barley plants”
Claim · model-written summary
Bacterial inoculation did not change the barley rhizosphere soil medium reaction.
- Taxon
- barley plantsHordeum vulgaret1
- Treatment
- Bacterial inoculationt0
- Outcome
- soil medium reactione0
- Direction
- without changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“without changes in the soil medium reaction”
t0“Bacterial inoculation reduced Pb uptake by plants at the beginning and in the first half of the growing season”
t1“barley plants”
Claim · model-written summary
P. fluorescens 21 showed the maximum capacity to immobilize lead in barley rhizosphere soil.
- Taxon
- barley plantsHordeum vulgaret0
- Interactor
- P. fluorescens 21
.JPG?width=60)
Pseudomonas fluorescense0symbiont - Outcome
- Pb immobilizatione0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“The bacterium P. fluorescens 21 had a maximum capacity for Pb immobilization”
t0“barley plants”
Claim · model-written summary
P. fluorescens 21 produced the minimum lead uptake into barley plants.
- Taxon
- barley plantsHordeum vulgaret0
- Treatment
- P. fluorescens 21t1
- Interactor
- P. fluorescens 21Pseudomonas fluorescenst1symbiont
- Outcome
- metal uptake into plantse0
- Direction
- minimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“contributed to the minimum metal uptake into plants”
t0“barley plants”
t1“P. fluorescens 21 had a maximum capacity for Pb immobilization”
Claim · model-written summary
Application of P. fluorescens 21 eliminated lead toxicity in barley plants.
- Taxon
- barley plantsHordeum vulgaret0
- Treatment
- Application of bacterium P. fluorescens 21e0
- Interactor
- P. fluorescens 21Pseudomonas fluorescense0symbiont
- Outcome
- Pb toxicitye0
- Direction
- eliminatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of bacterium P. fluorescens 21 eliminated Pb toxicity”
t0“barley plants”
The same questions in other papers
Pseudomonas fluorescens · pest · Hordeum vulgare (barley)Results agree
1 paper in the same direction as this paper
- positive
inoculation · Pseudomonas · Hordeum vulgare (barley)Results agree
1 paper in the same direction as this paper
- 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.