Prospects of phosphate solubilizing microorganisms in sustainable agriculture

World Journal of Microbiology and Biotechnology, Journal Year: 2024, Volume and Issue: 40(10)

Published: Aug. 6, 2024

Language: Английский

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Improving Phosphate Acquisition from Soil via Higher Plants While Approaching Peak Phosphorus Worldwide: A Critical Review of Current Concepts and Misconceptions

Plants, Journal Year: 2024, Volume and Issue: 13(24), P. 3478 - 3478

Published: Dec. 12, 2024

Phosphate (P) is the plant macronutrient with, by far, lowest solubility in soil. In soils with low P availability, soil solution concentrations are low, often below 2 [µmol P/L]. Under these conditions, diffusive flux, dominant transport mechanism to roots, severely restricted. sorbed into various solids, Fe/Al oxides, clay minerals and, sometimes overlooked, humic surfaces. The immobilization of result diffusion internal surfaces oxides or substances. This slow reaction between and further reduces availability soil, leading fixation. solubilization root-released carboxylates a promising way increase acquisition uptake from P-fixing soils. Citrate sometimes, oxalate effective respect additional mobilization, which may help flux roots increasing rhizosphere. mobilization humic-associated be an improve solubility. Not only orthophosphate anions mobilized carboxylates, but also higher phosphorylated inositol phosphates, as main part esters carboxylates. Because rather strong bonding phosphates solid phase, step appears essential for plants acquire inositol-P. ecological relevance its effect on crops grassland species are, at best, partially understood. Plant form cluster such white lupin (Lupinus albus L.) yellow luteus release high rates mainly citrate root clusters. These fixed available accessible do not satisfy their demand without mobilization. And make other mixed cropping systems subsequent crop rotations. probably important legume/grass mixtures forage production. Species alfalfa, red clover extent deserves research. particular, mostly benefit legume-released unknown. Organic farming require introduction nitrogen (N) legumes system. For this agricultural system, impact research task.

Language: Английский

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Investigating the dissolution of soil phosphate

Plant and Soil, Journal Year: 2023, Volume and Issue: 490(1-2), P. 591 - 599

Published: June 12, 2023

Abstract Aims The effectiveness of phosphate fertilisers decreases with increasing period reaction. One explanation for this is that the (P) has changed its chemical form. Evidence provided by fractionation schemes which include extraction alkali, followed acid. Our aim was to test whether alkali and acid extracted different moieties their ability reflect changes in form over time. Methods We measured effect reaction between P an iron (hydroxy)oxide (goethite), aluminium oxide, a soil, using two methods. These are: alkali. Results Extraction similar This not consistent idea they extract kinds phosphate. With reaction, more needed be dissolved order dissolve same amount P. rate dissolution decreased Conclusions results are diffusion into reacting materials rather than formation forms. think increased resistance disolution occurred because diffused defects repaired them. Fractionation methods vigour presence separate

Language: Английский

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Soil Phosphorus Availability Impacts Chickpea Production and Nutritional Status in Tropical Soils

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: 24(2), P. 3115 - 3130

Published: April 22, 2024

Language: Английский

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Equations to describe the amount and rate of sorption

European Journal of Soil Science, Journal Year: 2023, Volume and Issue: 74(2)

Published: Feb. 23, 2023

Abstract The partition of materials that react with soil between the solid and solution phase, how this changes time, can often be described by a simple equation: S = c b 1 t 2 where is amount sorbed, concentration, time contact, , are parameters. However, when range values for sorption large, it apparent both increase decreasing sorption. At low sorption, approaches 1, plots nearly linear. These observations consistent mechanistic model in which postulated heterogenous sites. As decreases, heterogeneity occupied sites decreases. This why increases. Because there sites, rates subsequent reaction. proportional to fractional index time. It better describe effects way than using several first‐order equations.

Language: Английский

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Effects of Phosphate-solubilizing Bacteria on Soil Phosphorus Fractions and Supply to Maize Seedlings Grown in Lateritic Red Earths and Cinnamon Soils

Microbes and Environments, Journal Year: 2023, Volume and Issue: 38(2), P. n/a - n/a

Published: Jan. 1, 2023

Phosphorus (P) is often the limiting factor for plant growth because of its low mobility and availability in soils. Phosphate-solubilizing bacteria (PSB) have been shown to increase soil P fractions, thereby promoting growth. We herein investigated effects PSB on two important Chinese types: Lateritic red earths (La) Cinnamon soils (Ci). initially isolated 5 strains assessed their fractions. mainly increased moderately labile La Ci. then selected most promising isolate (99% similarity with Enterobacter chuandaensis) examined accumulation maize seedlings. The results obtained showed that response a inoculation both types combination tricalcium phosphate fertilization significantly enhanced shoots. present study demonstrated isolates tested differed ability mobilize from distinct fertilizers potential as valuable means sustainably enhancing seedling agricultural

Language: Английский

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Lanthanum Significantly Contributes to the Growth of the Fine Roots’ Morphology and Phosphorus Uptake Efficiency by Increasing the Yield and Quality of Glycyrrhiza uralensis Taproots

Plants, Journal Year: 2024, Volume and Issue: 13(4), P. 474 - 474

Published: Feb. 7, 2024

The occurrence of different degrees phosphorus deficiency in the vast majority G. uralensis cultivation regions worldwide is common. There a pressing need within cultivated industry to identify appropriate exogenous substances that can enhance uptake and improve both yield quality taproots uralensis. This study was conducted investigate fine root taproot morphology, physiological characteristics, secondary metabolite accumulation response supply varying concentrations LaCl3 uralensis, determine optimal concentration effectively uralensis’s taproots, while also alleviating its reliance on soil phosphate fertilizer. findings indicate foliar application lanthanum enhanced activity increased APase activity, eliciting alterations leading promoting biomass grown when subjected P-deficient conditions. Furthermore, it observed nutrient significantly improved conditions but treated with LaCl3. Additionally, medicinal organs were enhanced.

Language: Английский

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Effect of Phosphorus Application on Subcellular Distribution and Chemical Morphology of Cadmium in Eggplant Seedlings under Cadmium Stress

Agronomy, Journal Year: 2024, Volume and Issue: 14(5), P. 932 - 932

Published: April 29, 2024

Soil cadmium (Cd) contamination poses a serious threat to ecosystems, and the application of phosphorus fertilizers can reduce Cd toxicity. However, specific effects different on subcellular distribution chemical morphology in eggplant grown calcareous Cd-contaminated soil remain unclear. This study examined impact various types levels phosphate seedlings using two-factor analysis. The investigation was conducted via pot experiment utilizing 0.35 g kg−1 dicalcium significantly decreased content induced notable alterations roots. Specifically, ethanol-extracted state by 65.45%, sodium chloride-extracted 64.65%. Conversely, extracted deionized water, acetic acid, hydrochloric residue increased 6.20%, 4.01%, 20.87%, 17.85%, respectively. resulted most significant reduction modification

Language: Английский

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Phosphorus mining and bioavailability for plant acquisition: environmental sustainability perspectives

Environmental Monitoring and Assessment, Journal Year: 2025, Volume and Issue: 197(5)

Published: April 21, 2025

Abstract This review aims to examine microbial mechanisms for phosphorus (P) solubilization, assess the impacts of P mining and scarcity, advocate sustainable recycling strategies enhance agricultural environmental resilience. Phosphorus is an indispensable macronutrient plant growth productivity, yet its bioavailability in cultivation systems often constrained. scarcity has led a heavy reliance on fertilizers derived from mined phosphate rock (PR), which finite resource usually contaminated with hazardous elements such as uranium, radium, thorium. Plants absorb only about 10–20% applied fertilizers, leading significant inefficiencies negative consequences. Additionally, uneven geographic distribution PR reserves exacerbates global socioeconomic geopolitical vulnerabilities. Healthy soils enriched diverse communities provide avenue address these growing challenges. Rhizospheric organisms, including phosphorus-solubilizing phosphorus-mineralizing bacteria arbuscular mycorrhizal fungi, are capable pivotal conversion inorganic organic into bioavailable forms, reducing synthetic fertilizers. The used by microbes include releasing acids lower soil pH solubilize insoluble compounds production enzymes, phosphatases phytases, break down compounds, phytates, phosphate. Some secrete chelating agents, siderophores, bind metal ions free complexes use biofilms exchange. also advocates second-generation waste socially equitable alternative conventional mining.

Language: Английский

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Chain-Length-Selective Hydrolysis of Polyphosphate Fertilizer on Soil Goethite

Journal of Agricultural and Food Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

The nutrient activity of ammonium polyphosphates (APPs, (NH4)n+2PnO3n+1, n < 20) in soils is closely associated with the minerals and polyphosphate (Poly-P) constitution. Herein, we investigate differential performances APP1 (P species P1-P2) APP2 P1-P7) mixed goethite (O═Fe-OH). Goethite dissociated Fe3+ both facilitate P-O cleavage, especially for longer chains from APP2, a hydrolysis constant (K) increase 209% well-fitted first-order model. terminal bond lengths Poly-Ps by 0.02-0.04 Å after being adsorbed. Subsequently, promote dissolution via loosening solid Fe-O multi-dentate coordination surface Fe3+. With accelerated goethite, could quickly cleave to supply available P1, derived P2 would continue spread out. These findings highlight ability abundant long-chain P activate Fe goethite-dominated soils.

Language: Английский

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