Phosphate-solubilising bacteria enhance Oryza sativa growth and nutrient accumulation in an oxisol fertilized with rock phosphate

Costa, Elaine Martins da; Lima, Wellington de; Oliveira-Longatti, Silvia Maria de; Souza, Fatima Maria de

doi:10.1016/j.ecoleng.2015.06.045

Cited by 46 publications

(11 citation statements)

References 30 publications

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“…These results are consistent with reports from Singh et al [61] who found that both Pseudomonas monteilii and Glomus fasciculatum had the ability to increase NPK uptake and above the biomass of Coleus forskohlii plants. Martins da Costa et al [5] also conducted a greenhouse experiment and proved that the growth and nutrient uptake by rice plants could be enhanced by the combined inoculation of bacterial strains with RP.…”

Section: Discussionmentioning

confidence: 99%

“…In many agricultural soils, P is abundantly distributed in both inorganic and organic forms, but its concentration and availability to plants is limited due to fixation, precipitation, and formation of soils complexes with other soil nutrients [4]. In order to compensate for this deficiency and sustain crop productivity, high doses of chemical P fertilizers are nowadays widely applied in agricultural soils [5].…”

Section: Introductionmentioning

confidence: 99%

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Sustainable Management with Mycorrhizae and Phosphate Solubilizing Bacteria for Enhanced Phosphorus Uptake in Calcareous Soils

et al. 2020

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Low availability of phosphorus (P) in calcareous soils is a major problem for sustainable improvement in cereals crops yield. A higher amount of calcium in soils precipitates the P, thus making it immobile in soil. Inoculation of arbuscular mycorrhizal fungi (AMF) and phosphate solubilizing bacteria (PSB) could be helpful in the sustainable management of immobile P in soil. However, their combined use in releasing P from rock phosphate (RP) in alkaline calcareous soils have been little investigated. In this regard, two successive field experiments were conducted to assess the interactive inoculation potential of AMF and PSB strain Bacillus sp. PIS7 with RP on the yield and P uptake of maize (Zea mays L.) and wheat (Triticum aestivum L.) crops in alkaline calcareous soil. The first field experiment was conducted in a complete randomized block design with 10 treatments and three replications by inoculating maize seeds with AMF and Bacillus sp. PIS7 inoculum alone and in combination with RP. Their performance was compared with single super phosphate (SSP) inorganic fertilizer. Afterward, the residual effects of inoculated AMF and Bacillus sp. PIS7 were investigated on wheat as a subsequent crop. Maize and wheat yield parameters, P uptake, AMF root colonization, and PSB population was measured. The results of both trials indicated the beneficial effects of AMF and Bacillus sp. PIS7 with RP in increasing the plants grain yield and P uptake until the second season after inoculation, as compared to controls. Likewise, maize and wheat roots colonization, PSB population density, and post-harvest soil properties were also improved by the combined inoculation of AMF and Bacillus sp. PIS7 with RP. It is concluded that PSB solubilizes the unavailable forms of P in combination with RP fertilizers in soil, and AMF ultimately transfers it to plants for growth promotion. Moreover, the combined inoculation of AMF and PSB with ground RP had more potential to improve maize-wheat yields and P uptake comparable to those obtained by using expensive phosphatic fertilizers in P deficient calcareous pH soils.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sustainable Management with Mycorrhizae and Phosphate Solubilizing Bacteria for Enhanced Phosphorus Uptake in Calcareous Soils

et al. 2020

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“…In this study, we found a higher level of AN, AP, and AK with PSB inoculation. Da Costa et al (2015) also found a significantly higher level of AP when RP was combined with PSB, compared with other treatments. The PSB acidify soil by producing organic acids, which increases the solubility of P from RP ( Yadav et al, 2015 ).…”

Section: Discussionmentioning

confidence: 78%

Interaction Between Halotolerant Phosphate-Solubilizing Bacteria (Providencia rettgeri Strain TPM23) and Rock Phosphate Improves Soil Biochemical Properties and Peanut Growth in Saline Soil

Jiang

Wang³

et al. 2021

Front. Microbiol.

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Soil salinity has adverse effects on soil microbial activity and nutrient cycles and therefore limits crop growth and yield. Amendments with halotolerant phosphate-solubilizing bacteria (PSB) and rock phosphate (RP) may improve properties of saline soil. In this study, we investigated the effects of RP either alone or in combination with PSB (Providencia rettgeri strain TPM23) on peanut growth and soil quality in a saline soil. With the combined application of RP and PSB, plant length and biomass (roots and shoots) and uptake of phosphorus (P), nitrogen (N), and potassium (K) increased significantly. Soil Na+ and Cl– contents decreased in the PR alone or PR combined with PSB treatment groups. There were strongly synergistic effects of RP and PSB on soil quality, including a decrease in pH. The soil available N, P, and K contents were significantly affected by the PSB treatments. In addition, the alkaline phosphomonoesterases, urease, and dehydrogenase activities increased significantly compared with the untreated group; highest alkaline phosphomonoesterases activity was observed in the RP and PSB treatment groups. The composition of rhizosphere soil bacterial communities was determined using 454-pyrosequencing of the 16S rRNA gene. In the PR alone or PR combined with PSB treatment groups, the structure of the soil bacterial community improved with increasing richness and diversity. With PSB inoculation, the relative abundance of Acidobacteria, Chloroflexi, and Planctomycetes increased. The three phyla were also positively correlated with soil available N and root dry weight. These results suggested microbiological mechanisms by which the combined use of RP and PSB improved saline soil and promoted plant growth. Overall, the study indicates the combined use of RP and PSB can be an economical and sustainable strategy to increase plant growth in P-deficient and salt-affected soils.

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“…However, the soil solution pH changed little under any of the conditions in the present study. This result is consistent with those of Martins Da Costa, de Lima, Oliveira‐Longatti, and de Souza (), who demonstrated that the solubilisation of insoluble inorganic phosphates is not always associated with the lowering of the soil pH. However, inoculation of PSB have great practical importance for the available soil P. Zaidi, Khan, and Amil () reported significant improvement in P availability for plants through PSB inoculation.…”

Section: Discussionmentioning

confidence: 99%

Role of halotolerant phosphate‐solubilising bacteria on growth promotion of peanut (Arachis hypogaea) under saline soil

Jiang

Wang³

et al. 2018

Annals of Applied Biology

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Soil salinity is a major abiotic stress that limits plant growth, and inoculating plant growthpromoting rhizobacteria is a well-known strategy to reduce stressors under adverse soil conditions. This study was conducted to assess the effect of halotolerant phosphate-solubilising bacteria (PSB) on protecting peanut against salt stress. Four candidate strains: Bacillus megaterium (YM13), Enterobacter sp. (YM14), Providencia rettgeri (TPM23) and Ensifer adhaeren (TPMX5) showed strong tolerance to NaCl and high phosphate-solubilising ability even at a NaCl concentration of 1.4 M. In addition, all four strains demonstrated variable levels of phosphate solubilisation activity in the presence of various carbon and nitrogen sources, indicating high phosphate-solubilising efficacy. Germination and radicle length of peanut seedlings increased with inoculation of PSB under both control and saline conditions. Statistically significant increase in the root length (range: 25.71-49%), stem length (19-48%), number of leaves (12.5-37%) and root/shoot biomass were observed. This could be attributed to plant hormones (i.e., indole acetic acid [IAA], abscisic acid [ABA] and gibberellic acid [GA3]) and successful root colonisation by bacterial inoculants. Root colonisation was positively correlated to plant growthand shown to be influenced by soil conditions. In addition, the PSB also improved the levels of available P in soil. The most pronounced beneficial effect on the growth of peanut plants and soil available P content was observed in the inoculation of the PSB isolates with Ca 3 (PO 4 ) 2 addition. This is the first report that describes Providencia rettgeri as a plant growth-promoting bacterium that may be utilised to alleviate the negative effects of salt stress on peanut plants. This bacterial species may thus be potentially used as a biofertilizer for sustaining the growth of peanut in salt-stressed soil and in mitigating soil stress conditions.

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Phosphate-solubilising bacteria enhance Oryza sativa growth and nutrient accumulation in an oxisol fertilized with rock phosphate

Cited by 46 publications

References 30 publications

Sustainable Management with Mycorrhizae and Phosphate Solubilizing Bacteria for Enhanced Phosphorus Uptake in Calcareous Soils

Sustainable Management with Mycorrhizae and Phosphate Solubilizing Bacteria for Enhanced Phosphorus Uptake in Calcareous Soils

Interaction Between Halotolerant Phosphate-Solubilizing Bacteria (Providencia rettgeri Strain TPM23) and Rock Phosphate Improves Soil Biochemical Properties and Peanut Growth in Saline Soil

Role of halotolerant phosphate‐solubilising bacteria on growth promotion of peanut (Arachis hypogaea) under saline soil

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