Roles of Phosphate Solubilizing Microorganisms from Managing Soil Phosphorus Deficiency to Mediating Biogeochemical P Cycle

Biology, Год журнала: 2021, Номер 10(2), С. 158 - 158

Опубликована: Фев. 17, 2021

Phosphorus (P) is a vital element in biological molecules, and one of the main limiting elements for biomass production as plant-available P represents only small fraction total soil P. Increasing global food demand modern agricultural consumption fertilizers could lead to excessive inputs inorganic intensively managed croplands, consequently rising losses ongoing eutrophication surface waters. Despite phosphate solubilizing microorganisms (PSMs) are widely accepted eco-friendly increasing productivity, comprehensive deeper understanding role PSMs geochemical processes managing deficiency has received inadequate attention. In this review, we summarize basic forms their cycles systems, how mediate biogeochemical cycles, metabolic enzymatic mechanisms behind these processes. We also highlight important roles cycle provide perspectives on several environmental issues prioritize future PSM applications.

Язык: Английский

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Linking root exudation to belowground economic traits for resource acquisition

New Phytologist, Год журнала: 2021, Номер 233(4), С. 1620 - 1635

Опубликована: Ноя. 11, 2021

The concept of a root economics space (RES) is increasingly adopted to explore trait variation and belowground resource-acquisition strategies. Much progress has been made on interactions morphology mycorrhizal symbioses. However, exudation, with significant carbon (C) cost (c. 5-21% total photosynthetically fixed C) enhance resource acquisition, remains missing link in this RES. Here, we argue that incorporating exudation into the structure RES key holistic understanding soil nutrient acquisition. We highlight different functional roles exudates phosphorus (P) nitrogen (N) Thereafter, synthesize emerging evidence illustrates how interacts symbioses at level species individual plant contrasting patterns evolved P-impoverished vs N-limited environments. Finally, propose new conceptual framework, integrating three groups traits better capture complexity Such deeper integrated dynamic morphology, will provide valuable insights mechanisms underlying coexistence for sustainable managed systems.

Язык: Английский

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Soil microbial inoculants for sustainable agriculture: Limitations and opportunities

Soil Use and Management, Год журнала: 2022, Номер 38(3), С. 1340 - 1369

Опубликована: Апрель 10, 2022

Abstract The burgeoning global market for soil microbial inoculants use in agriculture is being driven by pressure to increase sustainable crop production managing pests and diseases without environmental impacts. Microbial inoculants, based predominantly on bacteria fungi, are applied as alternatives conventional inorganic fertilizers (biofertilizers) or carry out specific functions including biocontrol of (biopesticides), bioremediation enhancement characteristics. While some such rhizobia have a long successful history use, others performed inconsistently the field failed live up their promise suggested laboratory testing. A more precise understanding ecology modes action inoculant strains key optimizing efficacy guiding targeted situations where they address limitations production. This will require greater collaboration between science disciplines, microbiology, plant science, molecular biology agronomy. Inoculants must be produced formulated ensure effective establishment practicality implementation alongside existing cropping practices. New approaches strain selection construction beneficial consortia should lead efficacious products. Extensive rigorous evaluation under range conditions has rarely been undertaken urgently needed validate emerging products underpin growers, especially that largely unregulated at present.

Язык: Английский

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Phosphorus Mobilization in Plant–Soil Environments and Inspired Strategies for Managing Phosphorus: A Review

Agronomy, Год журнала: 2022, Номер 12(10), С. 2539 - 2539

Опубликована: Окт. 17, 2022

Crop productivity and yield are adversely affected by the deficiency of P in agricultural soil. Phosphate fertilizers used at a large scale to improve crop yields globally. With rapid increase human population, food demands also increasing. To see that meet demands, farmers have continuously added phosphate their arable fields. As primary source inorganic phosphorous, rock is finite risk its being jeopardized foreseeable future high. Therefore, there dire need plant-available soil, using feasible, environmentally friendly technologies developed on basis further understanding dynamics between soil plants. This study systemically reviews mechanism uptake P-use efficiency plants under starvation conditions. The recent advances various strategies, especially imaging techniques, over period 2012–2021 for measurement identified. then examines how fulfill requirements from tissue-stored during starvation. Following this understanding, strategies increasing evaluated. Finally, an update novel carriers content provided.

Язык: Английский

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Ecotoxicological implications of residual pesticides to beneficial soil bacteria: A review

Pesticide Biochemistry and Physiology, Год журнала: 2022, Номер 188, С. 105272 - 105272

Опубликована: Окт. 29, 2022

Язык: Английский

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Roles of phosphate-solubilizing bacteria in mediating soil legacy phosphorus availability

Microbiological Research, Год журнала: 2023, Номер 272, С. 127375 - 127375

Опубликована: Апрель 11, 2023

Язык: Английский

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Diversity of Phosphate Chemical Forms in Soils and Their Contributions on Soil Microbial Community Structure Changes

Microorganisms, Год журнала: 2022, Номер 10(3), С. 609 - 609

Опубликована: Март 13, 2022

In many soils, the bioavailability of Phosphorus (P), an essential macronutrient is a limiting factor for crop production. Among mechanisms developed to facilitate absorption phosphorus, plant, as holobiont, can rely on its rhizospheric microbial partners. Therefore, P-solubilizing inoculants are proposed improve soil P fertility in agriculture. However, better understanding interactions soil-plant-microorganism continuum with phosphorus cycle needed propose efficient inoculants. Before proposing further methods research, we carried out critical review literature two parts. First, focused diversity P-chemical forms. After forms describe multiple factors that shape these and their turnover. Second, provide analysis driver community soil. Even if no rule enabling explain changes composition communities according has been shown, this element perfectly targeted linked presence/absence and/or abundance particular bacterial taxa. conclusion, point need link chemistry microbiology order understand variations function bioavailability. This knowledge will make it possible advanced microbial-based inoculant engineering improvement bioavailable plants sustainable

Язык: Английский

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Plant microbiomes harbor potential to promote nutrient turnover in impoverished substrates of a Brazilian biodiversity hotspot

The ISME Journal, Год журнала: 2022, Номер 17(3), С. 354 - 370

Опубликована: Дек. 20, 2022

Abstract The substrates of the Brazilian campos rupestres, a grassland ecosystem, have extremely low concentrations phosphorus and nitrogen, imposing restrictions to plant growth. Despite that, this ecosystem harbors almost 15% diversity, raising question how plants acquire nutrients in such harsh environment. Here, we set out uncover taxonomic profile, compositional functional differences similarities, nutrient turnover potential microbial communities associated with two species rupestres-dominant family Velloziaceae that grow over distinct (soil rock). Using amplicon sequencing data, show despite pronounced composition differentiation, plant-associated soil rock share core highly efficient colonizers tend be abundant is enriched 21 bacterial families. Functional investigation metagenomes 522 metagenome-assembled genomes revealed microorganisms found roots are genes involved organic compound intake, nitrogen turnover. We for transport, mineralization, solubilization mostly within families shared microbiome, as Xanthobacteraceae Bryobacteraceae. also detected full repertoire cycle-related discovered lineage Isosphaeraceae acquired nitrogen-fixing via horizontal gene transfer might nitrification metabolic handoff association Binataceae. highlight populations rupestres harbor genetic increase availability microbiomes biodiversity hotspots can reveal novel mechanisms

Язык: Английский

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Antimony efflux underpins phosphorus cycling and resistance of phosphate-solubilizing bacteria in mining soils

The ISME Journal, Год журнала: 2023, Номер 17(8), С. 1278 - 1289

Опубликована: Июнь 3, 2023

Microorganisms play crucial roles in phosphorus (P) turnover and P bioavailability increases heavy metal-contaminated soils. However, microbially driven P-cycling processes mechanisms of their resistance to metal contaminants remain poorly understood. Here, we examined the possible survival strategies microorganisms horizontal vertical soil samples from world's largest antimony (Sb) mining site, which is located Xikuangshan, China. We found that total Sb pH were primary factors affecting bacterial community diversity, structure traits. Bacteria with gcd gene, encoding an enzyme responsible for gluconic acid production, largely correlated inorganic phosphate (Pi) solubilization significantly enhanced bioavailability. Among 106 nearly complete metagenome-assembled genomes (MAGs) recovered, 60.4% carried gene. Pi transportation systems encoded by pit or pstSCAB widely present gcd-harboring bacteria, 43.8% bacteria also acr3 gene efflux pump. Phylogenetic potential transfer (HGT) analyses indicated could be a dominant mechanism, two MAGs appeared acquire through HGT. The results enhance cycling Pi-solubilizing This study provides novel managing remediating ecosystems.

Язык: Английский

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Testing plant growth promoting microorganisms in the field - a proposal for standards

Frontiers in Plant Science, Год журнала: 2024, Номер 14

Опубликована: Янв. 16, 2024

In the European Union and worldwide there are a burgeoning markets for plant growth promoting microorganisms (PGPM) other biological agents as soil improvers, bio-fertilizers, bio-stimulants, control or bio-pesticides. Microbial have major share in this development. The use of such products is often advertised with promise contributing to sustainable agricultural practices by increasing crop yield offering an alternative substitute decrease dependency agriculture on hazardeous agrochemicals. contrast registered microbial protection products, PGPM that marketed EU improvers biostimulants, not strictly required proven minimum efficacy levels under field conditions. Manufacturers only ensure these do pose unacceptable risks human, animal health, safety environment. Uniform guidelines comparable EPPO - standards (European Mediterranean Plant Protection Organisation) test trials available. This paper attempts fill gap. It proposes trial design implementation, well recommendations type scope data collection evaluation. Selected research papers from literature were evaluated analyze, whether what extent requirements already met. majority had clear experimental followed proper Frequent deficiencies low number tested environments species, insufficient site agronomic management description missing humidity temperature. Using suggested assumed increase expressive power products.

Язык: Английский

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