Abstract
The aim of this study was to determine the plant growth-promoting potential of the nodule endophytic Pseudomonas brassicacearum strain Zy-2-1 when used as a co-inoculant of Medicago lupulina with Sinorhizobium meliloti under copper (Cu) stress conditions. Strain Zy-2-1 was capable of producing ACC deaminase activity, IAA and siderophores, and was able to grow in the presence of Cu2+ up to 2.0 mmol/L. Co-inoculation of S. meliloti with Zy-2-1 enhanced M. lupulina root fresh weight, total plant dry weight, number of nodules, nodule fresh weight and nitrogen content in the presence of 100 or 300 mg/kg Cu2+. In the presence of 500 mg/kg Cu2+, co-inoculation with S. meliloti and strain Zy-2-1 increased plant height, number of nodules, nodule fresh weight and nitrogen content in comparison to S. meliloti inoculation alone. Furthermore, a higher amount of Cu accumulation in both shoots and roots and a higher level of Cu translocation to shoots were observed in co-inoculated plants. These results demonstrate that co-inoculation of M. lupulina with S. meliloti and P. brassicacearum Zy-2-1 improves plant growth, nitrogen nutrition and metal extraction potential. This can be of practical importance in the remediation of heavy metal-contaminated soils.
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Claims 10
Claim · model-written summary
Strain Zy-2-1 produced ACC deaminase activity, IAA and siderophores.
- Taxon
- Medicago lupulina
Medicago lupulinat0 - Interactor
- Zy-2-1e0symbiont
- Outcome
- ACC deaminase activity, IAA and siderophorese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e0“Strain Zy-2-1 was capable of producing ACC deaminase activity, IAA and siderophores”
Claim · model-written summary
Strain Zy-2-1 grew in the presence of Cu2+ up to 2.0 mmol/L.
- Taxon
- Medicago lupulinaMedicago lupulinat0
- Interactor
- Zy-2-1e0symbiont
- Outcome
- grow in the presence of Cu2+e1
- Value
- 2.0 mmol/Le1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e0“Strain Zy-2-1 was capable of producing ACC deaminase activity, IAA and siderophores”
e1“was able to grow in the presence of Cu2+ up to 2.0 mmol/L”
Claim · model-written summary
Co-inoculation with S. meliloti and Zy-2-1 enhanced root fresh weight, total plant dry weight and number of nodules at 100 or 300 mg/kg Cu2+.
- Taxon
- Medicago lupulinaMedicago lupulinat0
- Treatment
- Co-inoculation of S. meliloti with Zy-2-1e2
- Interactor
- S. meliloti
Sinorhizobium melilotie2symbiont - Second interactor
- Zy-2-1e2symbiont
- Outcome
- root fresh weight, total plant dry weight, number of nodulese2
- Direction
- enhancede2
- Qualifier
- in the presence of 100 or 300 mg/kg Cu2+e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e2“Co-inoculation of S. meliloti with Zy-2-1 enhanced M. lupulina root fresh weight, total plant dry weight, number of nodules, nodule fresh weight and nitrogen content in the presence of 100 or 300 mg/kg Cu2+”
Claim · model-written summary
Co-inoculation enhanced nodule fresh weight and nitrogen content at 100 or 300 mg/kg Cu2+.
- Taxon
- Medicago lupulinaMedicago lupulinat0
- Treatment
- Co-inoculation of S. meliloti with Zy-2-1e2
- Interactor
- S. melilotiSinorhizobium melilotie2symbiont
- Second interactor
- Zy-2-1e2symbiont
- Outcome
- nodule fresh weight and nitrogen contente2
- Direction
- enhancede2
- Qualifier
- in the presence of 100 or 300 mg/kg Cu2+e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e2“Co-inoculation of S. meliloti with Zy-2-1 enhanced M. lupulina root fresh weight, total plant dry weight, number of nodules, nodule fresh weight and nitrogen content in the presence of 100 or 300 mg/kg Cu2+”
Claim · model-written summary
At 500 mg/kg Cu2+, co-inoculation increased plant height, number of nodules and nodule fresh weight compared with S. meliloti alone.
- Taxon
- Medicago lupulinaMedicago lupulinat0
- Treatment
- co-inoculation with S. meliloti and strain Zy-2-1e3
- Interactor
- S. melilotiSinorhizobium melilotie3symbiont
- Second interactor
- strain Zy-2-1e3symbiont
- Outcome
- plant height, number of nodules, nodule fresh weighte3
- Direction
- increasede3
- Qualifier
- In the presence of 500 mg/kg Cu2+e3
- Comparator
- S. meliloti inoculation alonee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e3“In the presence of 500 mg/kg Cu2+, co-inoculation with S. meliloti and strain Zy-2-1 increased plant height, number of nodules, nodule fresh weight and nitrogen content in comparison to S. meliloti inoculation alone”
Claim · model-written summary
At 500 mg/kg Cu2+, co-inoculation increased nitrogen content compared with S. meliloti alone.
- Taxon
- Medicago lupulinaMedicago lupulinat0
- Treatment
- co-inoculation with S. meliloti and strain Zy-2-1e3
- Interactor
- S. melilotiSinorhizobium melilotie3symbiont
- Second interactor
- strain Zy-2-1e3symbiont
- Outcome
- nitrogen contente3
- Direction
- increasede3
- Qualifier
- In the presence of 500 mg/kg Cu2+e3
- Comparator
- S. meliloti inoculation alonee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e3“In the presence of 500 mg/kg Cu2+, co-inoculation with S. meliloti and strain Zy-2-1 increased plant height, number of nodules, nodule fresh weight and nitrogen content in comparison to S. meliloti inoculation alone”
Claim · model-written summary
Co-inoculated plants accumulated more Cu in shoots and roots.
- Taxon
- Medicago lupulinaMedicago lupulinat0
- Treatment
- co-inoculated plantse4
- Outcome
- Cu accumulation in both shoots and rootse4
- Direction
- highere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e4“a higher amount of Cu accumulation in both shoots and roots and a higher level of Cu translocation to shoots were observed in co-inoculated plants”
Claim · model-written summary
Co-inoculated plants translocated more Cu to shoots.
- Taxon
- Medicago lupulinaMedicago lupulinat0
- Treatment
- co-inoculated plantse4
- Outcome
- Cu translocation to shootse4
- Direction
- highere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e4“a higher amount of Cu accumulation in both shoots and roots and a higher level of Cu translocation to shoots were observed in co-inoculated plants”
Claim · model-written summary
Co-inoculation with S. meliloti and P. brassicacearum Zy-2-1 improved plant growth, nitrogen nutrition and metal extraction potential.
- Taxon
- Medicago lupulinaMedicago lupulinat0
- Treatment
- co-inoculation of M. lupulina with S. meliloti and P. brassicacearum Zy-2-1e5
- Interactor
- S. melilotiSinorhizobium melilotie5symbiont
- Second interactor
- P. brassicacearum Zy-2-1Pseudomonas brassicacearume5symbiont
- Outcome
- plant growth, nitrogen nutrition and metal extraction potentiale5
- Direction
- improvese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e5“These results demonstrate that co-inoculation of M. lupulina with S. meliloti and P. brassicacearum Zy-2-1 improves plant growth, nitrogen nutrition and metal extraction potential”
Claim · model-written summary
Co-inoculation may be of practical importance for remediation of heavy metal-contaminated soils.
- Taxon
- Medicago lupulinaMedicago lupulinat0
- Outcome
- remediation of heavy metal-contaminated soilse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Medicago lupulina under copper stress”
e6“This can be of practical importance in the remediation of heavy metal-contaminated soils”
The same questions in other papers
Sinorhizobium meliloti · symbiosis · Medicago lupulinaResults agree
1 paper in the same direction as this paper
- positive
Sinorhizobium meliloti · growth · Medicago lupulinaResults agree
1 paper in the same direction as this paper
- positive
inoculation · growth · Medicago lupulinaPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
inoculation · symbiosis · Medicago lupulinaPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- 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.