Abstract
In many areas of developing countries, agriculture soil is irrigated with water from drains contaminated with industrial wastewater that contains many toxic substances including arsenic. Such sites could be explored for arsenic-resistant plant growth-promoting microbes. Ten arsenic-resistant bacteria were isolated from such a site and were characterized. Their ability to resist and reduce/oxidize arsenic was determined. The bacteria were also analyzed for plant growth-promoting abilities such as auxin and hydrogen cyanide production, phosphate solubilization, and nitrogen fixation. The effect of these bacteria on plant growth was determined using Vigna radiata both in presence and absence of arsenic. Bacterial isolates S254 and S255 showed maximum resistance against arsenic; up to 225 mM of As(V) and 25 mM of As(III). The phylogenetic analysis revealed that strain S254 belonged to the species Pseudoxanthomonas mexicana and strain S255 belonged to the species Stenotrophomonas maltophilia. Both P. mexicana S254 and S. maltophilia S255 showed positive results for hydrogen cyanide production, auxin production, and nitrogen fixation. P. mexicana S254 produced auxin at a concentration of 14.15 µg mL−1 and S. maltophilia S255 produced auxin as high as 68.75 µg mL−1. Both the bacteria-enhanced the growth of V. radiata and a statistically significant increase in shoot and root lengths was observed both in the presence and absence of arsenic. The application of such bacteria could be helpful for the growth of plants in arsenic-contaminated lands.
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Claims 9
Claim · model-written summary
Bacterial isolates S254 and S255 showed maximum resistance to arsenic, up to 225 mM As(V) and 25 mM As(III).
- Taxon
- Vigna radiata
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Vigna radiatae0 - Material
- S254 and S255e1
- Outcome
- maximum resistance against arsenice1
- Value
- 225 mMe1
- Qualifier
- up to 225 mM of As(V) and 25 mM of As(III)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“using Vigna radiata both in presence and absence of arsenic”
e1“Bacterial isolates S254 and S255 showed maximum resistance against arsenic; up to 225 mM of As(V) and 25 mM of As(III)”
Claim · model-written summary
Strain S254 was identified as Pseudoxanthomonas mexicana by phylogenetic analysis.
- Taxon
- Vigna radiataVigna radiatae0
- Material
- strain S254e2
- Interactor
- Pseudoxanthomonas mexicanaPseudoxanthomonas mexicanae2symbiont
- Outcome
- phylogenetic analysise2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using Vigna radiata both in presence and absence of arsenic”
e2“The phylogenetic analysis revealed that strain S254 belonged to the species Pseudoxanthomonas mexicana and strain S255 belonged to the species Stenotrophomonas maltophilia”
Claim · model-written summary
Strain S255 was identified as Stenotrophomonas maltophilia by phylogenetic analysis.
- Taxon
- Vigna radiataVigna radiatae0
- Material
- strain S255e2
- Interactor
- Stenotrophomonas maltophilia
Stenotrophomonas maltophiliae2symbiont - Outcome
- phylogenetic analysise2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using Vigna radiata both in presence and absence of arsenic”
e2“The phylogenetic analysis revealed that strain S254 belonged to the species Pseudoxanthomonas mexicana and strain S255 belonged to the species Stenotrophomonas maltophilia”
Claim · model-written summary
P. mexicana S254 was positive for hydrogen cyanide production, auxin production and nitrogen fixation.
- Taxon
- Vigna radiataVigna radiatae0
- Material
- P. mexicana S254e3
- Interactor
- P. mexicana S254Pseudoxanthomonas mexicanae3symbiont
- Outcome
- hydrogen cyanide production, auxin production, and nitrogen fixatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using Vigna radiata both in presence and absence of arsenic”
e3“Both P. mexicana S254 and S. maltophilia S255 showed positive results for hydrogen cyanide production, auxin production, and nitrogen fixation”
Claim · model-written summary
S. maltophilia S255 was positive for hydrogen cyanide production, auxin production and nitrogen fixation.
- Taxon
- Vigna radiataVigna radiatae0
- Material
- S. maltophilia S255e3
- Interactor
- S. maltophilia S255Stenotrophomonas maltophiliae3symbiont
- Outcome
- hydrogen cyanide production, auxin production, and nitrogen fixatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using Vigna radiata both in presence and absence of arsenic”
e3“Both P. mexicana S254 and S. maltophilia S255 showed positive results for hydrogen cyanide production, auxin production, and nitrogen fixation”
Claim · model-written summary
P. mexicana S254 produced auxin at 14.15 µg mL−1.
- Taxon
- Vigna radiataVigna radiatae0
- Material
- P. mexicana S254e4
- Interactor
- P. mexicana S254Pseudoxanthomonas mexicanae4symbiont
- Outcome
- auxine4
- Value
- 14.15 µg mL−1e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using Vigna radiata both in presence and absence of arsenic”
e4“P. mexicana S254 produced auxin at a concentration of 14.15 µg mL−1”
Claim · model-written summary
S. maltophilia S255 produced auxin at 68.75 µg mL−1.
- Taxon
- Vigna radiataVigna radiatae0
- Material
- S. maltophilia S255e5
- Interactor
- S. maltophilia S255Stenotrophomonas maltophiliae5symbiont
- Outcome
- auxine5
- Value
- 68.75 µg mL−1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using Vigna radiata both in presence and absence of arsenic”
e5“S. maltophilia S255 produced auxin as high as 68.75 µg mL−1”
Claim · model-written summary
The bacteria enhanced shoot and root lengths of Vigna radiata, significantly, both with and without arsenic.
- Taxon
- Vigna radiataVigna radiatae0
- Treatment
- bacteriae6
- Outcome
- shoot and root lengthse6
- Direction
- increasee6
- Qualifier
- both in the presence and absence of arsenice6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using Vigna radiata both in presence and absence of arsenic”
e6“Both the bacteria-enhanced the growth of V. radiata and a statistically significant increase in shoot and root lengths was observed both in the presence and absence of arsenic”
Claim · model-written summary
Application of such bacteria could be helpful for the growth of plants in arsenic-contaminated lands.
- Taxon
- plantsViridiplantaee7
- Outcome
- growth of plantse7
Verbatim
e7“The application of such bacteria could be helpful for the growth of plants in arsenic-contaminated lands”
The same questions in other papers
inoculation · Bacteria · Vigna radiata (mung bean)Results agree
2 papers in the same direction as this paper
- 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.