Abstract
Three bacteria strains of Pseudomonas sp. resistant to heavy metals were isolated from the chemically contaminated soil. According to the results on the nucleotide sequences of the 16S rRNA and rpoD genes, strain Pseudomonas sp. 17 НМ was identified as Pseudomonas capeferrum, and the strains of Pseudomonas sp. 65 НМ и 67 НМ were most closely related to the type strain of Pseudomonas silesiensis и Pseudomonas umsongensis, respectively. It has been shown that strains of Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ are characterized by different levels of resistance of heavy metals: maximum tolerance concentration (MTC) of zinc was 1 mМ for all strains, cadmium 1, 1.5, 1 mМ, lead 5, 5, 4 mМ, nickel 7, 9, 7 mМ, respectively. All pseudomonad strains can form biofilms and have the properties of PGPR bacteria. Treatment of alfalfa seeds (Medicago sativa L.) with strains Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ under cadmium stress led to an increase in the dry weight of alfalfa seedling up to 40 % and the content of chlorophyll a and b in the leaves by 25-33% relative to the control.
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Claims 11
Claim · model-written summary
Three heavy-metal-resistant Pseudomonas strains were isolated from contaminated soil.
- Taxon
- alfalfa
Medicago sativat0 - Interactor
- Pseudomonas sp.
Pseudomonase0symbiont - Outcome
- Three bacteria strains of Pseudomonas sp. resistant to heavy metalse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three bacteria strains of Pseudomonas sp. resistant to heavy metals were isolated from the chemically contaminated soil”
t0“alfalfa”
Claim · model-written summary
Sequence analysis identified Pseudomonas sp. 17 НМ as Pseudomonas capeferrum.
- Taxon
- alfalfaMedicago sativat0
- Interactor
- Pseudomonas sp. 17 НМe0symbiont
- Outcome
- identified as Pseudomonas capeferrume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“strain Pseudomonas sp. 17 НМ was identified as Pseudomonas capeferrum”
t0“alfalfa”
Claim · model-written summary
Pseudomonas sp. 65 НМ was most closely related to Pseudomonas silesiensis.
- Taxon
- alfalfaMedicago sativat0
- Interactor
- Pseudomonas sp. 65 НМe0symbiont
- Outcome
- most closely related to the type strain of Pseudomonas silesiensise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the strains of Pseudomonas sp. 65 НМ и 67 НМ were most closely related to the type strain of Pseudomonas silesiensis и Pseudomonas umsongensis, respectively”
t0“alfalfa”
Claim · model-written summary
Pseudomonas sp. 67 НМ was most closely related to Pseudomonas umsongensis.
- Taxon
- alfalfaMedicago sativat0
- Interactor
- 67 НМe0symbiont
- Outcome
- Pseudomonas umsongensise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the strains of Pseudomonas sp. 65 НМ и 67 НМ were most closely related to the type strain of Pseudomonas silesiensis и Pseudomonas umsongensis, respectively”
t0“alfalfa”
Claim · model-written summary
All three strains tolerated zinc to 1 mМ.
- Taxon
- alfalfaMedicago sativat0
- Interactor
- Pseudomonas sp. 17 НМ, 65 НМ, 67 НМe1symbiont
- Outcome
- maximum tolerance concentration (MTC) of zince0
- Value
- 1 mМe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum tolerance concentration (MTC) of zinc was 1 mМ for all strains”
t0“alfalfa”
e1“strains of Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ”
Claim · model-written summary
Cadmium tolerance concentrations were 1, 1.5 and 1 mМ for strains 17, 65 and 67 НМ, respectively.
- Taxon
- alfalfaMedicago sativat0
- Interactor
- Pseudomonas sp. 17 НМ, 65 НМ, 67 НМe1symbiont
- Outcome
- cadmiume0
- Value
- 1, 1.5, 1 mМe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cadmium 1, 1.5, 1 mМ”
e1“strains of Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ”
t0“alfalfa”
Claim · model-written summary
Lead tolerance concentrations were 5, 5 and 4 mМ for strains 17, 65 and 67 НМ, respectively.
- Taxon
- alfalfaMedicago sativat0
- Interactor
- Pseudomonas sp. 17 НМ, 65 НМ, 67 НМe1symbiont
- Outcome
- leade0
- Value
- 5, 5, 4 mМe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lead 5, 5, 4 mМ”
e1“strains of Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ”
t0“alfalfa”
Claim · model-written summary
Nickel tolerance concentrations were 7, 9 and 7 mМ for strains 17, 65 and 67 НМ, respectively.
- Taxon
- alfalfaMedicago sativat0
- Interactor
- Pseudomonas sp. 17 НМ, 65 НМ, 67 НМe1symbiont
- Outcome
- nickele0
- Value
- 7, 9, 7 mМe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nickel 7, 9, 7 mМ”
e1“strains of Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ”
t0“alfalfa”
Claim · model-written summary
All pseudomonad strains formed biofilms and had PGPR properties.
- Taxon
- alfalfaMedicago sativat0
- Interactor
- pseudomonad strainse0symbiont
- Outcome
- form biofilms and have the properties of PGPR bacteriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All pseudomonad strains can form biofilms and have the properties of PGPR bacteria”
t0“alfalfa”
Claim · model-written summary
Pseudomonas seed treatment under cadmium stress increased alfalfa seedling dry weight by up to 40%.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Treatment of alfalfa seeds (Medicago sativa L.) with strains Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ under cadmium stresse0
- Interactor
- Pseudomonas sp. 17 НМ, 65 НМ, 67 НМe0symbiont
- Outcome
- dry weight of alfalfa seedlinge0
- Direction
- increasee0
- Value
- 40 %e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment of alfalfa seeds (Medicago sativa L.) with strains Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ under cadmium stress led to an increase in the dry weight of alfalfa seedling up to 40 % and the content of chlorophyll a and b in the leaves by 25-33% relative to the control”
Claim · model-written summary
Pseudomonas seed treatment under cadmium stress increased leaf chlorophyll a and b by 25-33%.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Treatment of alfalfa seeds (Medicago sativa L.) with strains Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ under cadmium stresse0
- Interactor
- Pseudomonas sp. 17 НМ, 65 НМ, 67 НМe0symbiont
- Outcome
- content of chlorophyll a and b in the leavese0
- Direction
- increasee0
- Value
- 25-33%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment of alfalfa seeds (Medicago sativa L.) with strains Pseudomonas sp. 17 НМ, 65 НМ, 67 НМ under cadmium stress led to an increase in the dry weight of alfalfa seedling up to 40 % and the content of chlorophyll a and b in the leaves by 25-33% relative to the control”
The same questions in other papers
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heavy metal · physiology: pigments · Medicago sativa (alfalfa)Positive and negative results
3 in the opposite direction
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heavy metal · growth · Medicago sativa (alfalfa)Positive and negative results
1 paper in the same direction as this paper · 11 in the opposite direction
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9 papers more in this group
See all 13 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.