Abstract
In the present study, we assessed the agronomic value of a formulated plant growth-promoting rhizobacteria (PGPR) consortium combined with a phosphocompost amendment in deficient soil, using three plant models (Phaseolus vulgaris, Zea mays, and Solanum lycopersicum). PGPR consortium contains four strains which have been identified as Pseudomonas sp. DN 13–01, Sphingobacterium suaedae T47, Bacillus pimilus X22, and Bacillus cereus 263AG5, respectively. They have previously displayed their P solubilizing capacity and to have PGPR traits. In this study, the four strains were able also to dissolve potassium (K), with K solubility (KS) indices range between 0.950.03 and 1.210.25 in solid medium and released K values between 30.251.21 and 45.230.84 g-L−1in liquid medium. The bacterial strains also produced acid and alkaline phosphatases, 1-aminocyclopropane-1-carboxylate (ACC) deaminase, protease, cellulase, pectinase, lipase and amylase enzymes. The amendment of deficient soil with phosphocompost enriched with the PGPR consortium increased much more soil productivity and plant growth compared with controls uninoculated. The formulated PGPR consortium combined with phosphocompost gave the best yield in terms of plant height, number of leaves, number of fruits, shoot biomass, root biomass, and dry shoot biomass of the three-plant studied. Simultaneously, the PGPR consortium inoculation increased P and K uptake in the shoots and available P and K in the soil. In summary, our results showed that the application of PGPR consortium combined with phosphocompost amendment increased plant growth in deficient soil.
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Claims 7
Claim · model-written summary
The four bacterial strains dissolved potassium in solid and liquid media.
- Taxon
- Phaseolus vulgaris
Phaseolus vulgarise1 - Outcome
- dissolve potassium (K)e0
- Value
- 0.950.03 and 1.210.25e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the four strains were able also to dissolve potassium (K), with K solubility (KS) indices range between 0.950.03 and 1.210.25 in solid medium and released K values between 30.251.21 and 45.230.84 g-L−1in liquid medium.”
e1“Phaseolus vulgaris, Zea mays, and Solanum lycopersicum”
Claim · model-written summary
The bacterial strains produced multiple enzymes.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarise1
- Outcome
- produced acid and alkaline phosphatases, 1-aminocyclopropane-1-carboxylate (ACC) deaminasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bacterial strains also produced acid and alkaline phosphatases, 1-aminocyclopropane-1-carboxylate (ACC) deaminase, protease, cellulase, pectinase, lipase and amylase enzymes.”
e1“Phaseolus vulgaris, Zea mays, and Solanum lycopersicum”
Claim · model-written summary
Phosphocompost enriched with PGPR increased plant growth relative to uninoculated controls.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarise1
- Treatment
- phosphocompost enriched with the PGPR consortiume0
- Interactor
- PGPR consortiume0symbiont
- Outcome
- plant growthe0
- Direction
- increasede0
- Comparator
- controls uninoculatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amendment of deficient soil with phosphocompost enriched with the PGPR consortium increased much more soil productivity and plant growth compared with controls uninoculated.”
e1“Phaseolus vulgaris, Zea mays, and Solanum lycopersicum”
Claim · model-written summary
The combination gave the best height, leaf and fruit number in the three plants.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarise1
- Treatment
- PGPR consortium combined with phosphocomposte0
- Interactor
- PGPR consortiume0symbiont
- Outcome
- plant height, number of leaves, number of fruitse0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The formulated PGPR consortium combined with phosphocompost gave the best yield in terms of plant height, number of leaves, number of fruits, shoot biomass, root biomass, and dry shoot biomass of the three-plant studied.”
e1“Phaseolus vulgaris, Zea mays, and Solanum lycopersicum”
Claim · model-written summary
The combination gave the best shoot, root and dry shoot biomass in the three plants.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarise1
- Treatment
- PGPR consortium combined with phosphocomposte0
- Interactor
- PGPR consortiume0symbiont
- Outcome
- shoot biomass, root biomass, and dry shoot biomasse0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The formulated PGPR consortium combined with phosphocompost gave the best yield in terms of plant height, number of leaves, number of fruits, shoot biomass, root biomass, and dry shoot biomass of the three-plant studied.”
e1“Phaseolus vulgaris, Zea mays, and Solanum lycopersicum”
Claim · model-written summary
PGPR inoculation increased shoot phosphorus and potassium uptake.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarise1
- Treatment
- PGPR consortium inoculatione0
- Interactor
- PGPR consortiume0symbiont
- Outcome
- P and K uptake in the shootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the PGPR consortium inoculation increased P and K uptake in the shoots and available P and K in the soil.”
e1“Phaseolus vulgaris, Zea mays, and Solanum lycopersicum”
Claim · model-written summary
PGPR inoculation increased available soil phosphorus and potassium.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarise1
- Treatment
- PGPR consortium inoculatione0
- Interactor
- PGPR consortiume0symbiont
- Outcome
- available P and K in the soile0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the PGPR consortium inoculation increased P and K uptake in the shoots and available P and K in the soil.”
e1“Phaseolus vulgaris, Zea mays, and Solanum lycopersicum”
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