Abstract
Phosphate-dissolving microorganisms can be vital in promoting the bioavailability of phosphorus in soil characterized by high total P. Their additional property of phyto-hormone production can be advantageous for improving crop growth. Pseudomonas striata evaluated for phytate mineralization and solubilization of tricalcium, rock, ferric, and aluminum phosphate showed high potential as phosphobacteria. Chromatographic analysis of cell-free culture filtrate showed the presence of tartaric acid, malic acid, citric acid, succinic, and gluconic acid. Tartaric acid was effective in solubilization of tricalcium phosphate. The test strain also produced extracellular phytase (43.05 EU ml−1) in phytase-specific broth medium. The level of indoleacetic acid (15.59 μg ml −1) recorded was higher in the absence of tryptophan than in its presence. Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain. Its application to soil in the presence of rock phosphate provided an option to reduce the input of costly inorganic P fertilizer, as the crop yield in the presence of RP60+ P. striata was comparable with low dose of super phosphate (SP30) + P. striata. The microphos inoculants developed from the bacterial strain with multiple functional attributes can help the marginal farmers replenish the soil P more economically compared with costly inorganic phosphate fertilizer.
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Claims 13
Claim · model-written summary
Seed inoculation with P. striata improved pearl millet root biomass, 2.01 g per plant.
- Taxon
- pearl millet
Cenchrus americanuse1 - Treatment
- Seed inoculation with P. striatae1
- Interactor
- P. striata
Pseudomonas putidae1symbiont - Outcome
- root and shoot biomasse1
- Direction
- improvede1
- Value
- 2.01e1
- Qualifier
- roote1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
Claim · model-written summary
Seed inoculation with P. striata improved pearl millet shoot biomass, 29.12 g per plant.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- Seed inoculation with P. striatae1
- Interactor
- P. striataPseudomonas putidae1symbiont
- Outcome
- root and shoot biomasse1
- Direction
- improvede1
- Value
- 29.12 g pl−1e1
- Qualifier
- shoote1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
Claim · model-written summary
Seed inoculation with P. striata increased the availability of soil P, 43.44 μg g−1.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- Seed inoculation with P. striatae1
- Interactor
- P. striataPseudomonas putidae1symbiont
- Outcome
- availability of soil Pe1
- Direction
- increasede1
- Value
- 43.44 μg g−1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
Claim · model-written summary
Seed inoculation with P. striata gave higher P uptake by straw and grain.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- Seed inoculation with P. striatae1
- Interactor
- P. striataPseudomonas putidae1symbiont
- Outcome
- P uptake by straw and graine1
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
Claim · model-written summary
Crop yield with RP60 + P. striata was comparable with SP30 + P. striata.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- RP60+ P. striatae6
- Interactor
- P. striataPseudomonas putidae6symbiont
- Outcome
- crop yielde6
- Direction
- comparablee6
- Comparator
- low dose of super phosphate (SP30) + P. striatae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
e6“Its application to soil in the presence of rock phosphate provided an option to reduce the input of costly inorganic P fertilizer, as the crop yield in the presence of RP60+ P. striata was comparable with low dose of super phosphate (SP30) + P. striata”
Claim · model-written summary
Applying P. striata with rock phosphate offers an option to reduce inorganic P fertilizer input in pearl millet.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- rock phosphatee6
- Interactor
- P. striataPseudomonas putidae6symbiont
- Outcome
- reduce the input of costly inorganic P fertilizere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
e6“Its application to soil in the presence of rock phosphate provided an option to reduce the input of costly inorganic P fertilizer, as the crop yield in the presence of RP60+ P. striata was comparable with low dose of super phosphate (SP30) + P. striata”
Claim · model-written summary
The microphos inoculant can help marginal farmers replenish soil P more economically than costly inorganic phosphate fertilizer.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- microphos inoculantse7
- Outcome
- replenish the soil P more economicallye7
- Comparator
- costly inorganic phosphate fertilizere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
e7“The microphos inoculants developed from the bacterial strain with multiple functional attributes can help the marginal farmers replenish the soil P more economically compared with costly inorganic phosphate fertilizer”
Claim · model-written summary
Tartaric acid was effective in solubilizing tricalcium phosphate.
- Taxon
- pearl milletCenchrus americanuse1
- Compound
- Tartaric acide3
- Outcome
- solubilization of tricalcium phosphatee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
e3“Tartaric acid was effective in solubilization of tricalcium phosphate”
Claim · model-written summary
Tartaric, malic and citric acids were present in the cell-free culture filtrate.
- Taxon
- pearl milletCenchrus americanuse1
- Compound
- tartaric acid, malic acid, citric acide2
- Outcome
- presencee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
e2“Chromatographic analysis of cell-free culture filtrate showed the presence of tartaric acid, malic acid, citric acid, succinic, and gluconic acid”
Claim · model-written summary
Succinic and gluconic acids were present in the cell-free culture filtrate.
- Taxon
- pearl milletCenchrus americanuse1
- Compound
- succinic, and gluconic acide2
- Outcome
- presencee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
e2“Chromatographic analysis of cell-free culture filtrate showed the presence of tartaric acid, malic acid, citric acid, succinic, and gluconic acid”
Claim · model-written summary
The strain produced extracellular phytase, 43.05 EU ml−1, in phytase-specific broth.
- Taxon
- pearl milletCenchrus americanuse1
- Outcome
- extracellular phytasee4
- Value
- 43.05 EU ml−1e4
- Setting
- phytase-specific broth mediume4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
e4“The test strain also produced extracellular phytase (43.05 EU ml−1) in phytase-specific broth medium”
Claim · model-written summary
Indoleacetic acid level was higher in the absence of tryptophan than in its presence.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- absence of tryptophane5
- Outcome
- level of indoleacetic acide5
- Direction
- highere5
- Value
- 15.59 μg ml −1e5
- Comparator
- in its presencee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
e5“The level of indoleacetic acid (15.59 μg ml −1) recorded was higher in the absence of tryptophan than in its presence”
Claim · model-written summary
Pseudomonas striata showed high potential for phytate mineralization and solubilization of tricalcium, rock, ferric and aluminum phosphate.
- Taxon
- pearl milletCenchrus americanuse1
- Interactor
- Pseudomonas striataPseudomonas putidae0symbiont
- Outcome
- phytate mineralization and solubilizatione0
- Qualifier
- high potential as phosphobacteriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Seed inoculation with P. striata and its application to soil fertilized with low-grade Mussoorie rock phosphate at 60 kg P2O5 ha−1 under pearl millet (Pennisetum glaucum) not only improved the root and shoot biomass (2.01 and 29.12 g pl−1, respectively), but also increased the availability of soil P (43.44 μg g−1) and resulted in higher P uptake by straw and grain”
e0“Pseudomonas striata evaluated for phytate mineralization and solubilization of tricalcium, rock, ferric, and aluminum phosphate showed high potential as phosphobacteria”
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