Phosphate-Solubilizing Bacteria: Advances in Their Physiology, Molecular Mechanisms and Microbial Community Effects

Microorganisms, Год журнала: 2023, Номер 11(12), С. 2904 - 2904

Опубликована: Дек. 1, 2023

Phosphorus is an essential nutrient for all life on earth and has a major impact plant growth crop yield. The forms of phosphorus that can be directly absorbed utilized by plants are mainly HPO42- H2PO4-, which known as usable phosphorus. At present, the total content soils worldwide 400-1000 mg/kg, only 1.00-2.50% plant-available, seriously affects development agriculture, resulting in high level scarcity available Traditional methods applying fertilizer cannot address deficiency problems; they harm environment ore material nonrenewable natural resource. Therefore, it imperative to find alternative environmentally compatible economically viable strategies scarcity. Phosphorus-solubilizing bacteria (PSB) convert insoluble soil into plants, thus improving uptake utilization plants. However, there no clear systematic report mechanism action PSB. this paper summarizes discovery process, species, distribution PSB, focusing physiological mechanisms outlining processes acidolysis, enzymolysis, chelation complexation reactions related genes regulating PSB acidolysis enzymatic well phosphate transport molecular direction its pathway examined. effects structure abundance microbial communities also described, illustrating how interact with microorganisms indirectly increase amount soil. And three perspectives considered further exploring utilizing synergistic multi-omics approach, PSB-related regulatory different levels investigating application fungicide. This aims provide theoretical support providing optimal management elemental future.

Язык: Английский

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The Potential Applications of Commercial Arbuscular Mycorrhizal Fungal Inoculants and Their Ecological Consequences

Microorganisms, Год журнала: 2022, Номер 10(10), С. 1897 - 1897

Опубликована: Сен. 23, 2022

Arbuscular mycorrhizal fungal (AMF) inoculants are sustainable biological materials that can provide several benefits to plants, especially in disturbed agroecosystems and the context of phytomanagement interventions. However, it is difficult predict effectiveness AMF their impacts on indigenous communities under field conditions. In this review, we examined literature possible outcomes following introduction AMF-based field, including establishment soil plant roots, persistence, effects community. Most studies indicate introduced persist target from a few months years but with declining abundance (60%) or complete exclusion (30%). Further analysis shows inoculation exerts both positive negative native species, suppression (33%), stimulation (38%), (19%), neutral (10% cases). The factors influencing ecological fates inoculants, such as inherent properties inoculum, dosage frequency inoculation, physical factors, further discussed. While important monitor success downstream commercial sampling method molecular tools employed resolve quantify taxa need be improved standardized eliminate bias towards certain strains reduce discrepancies among studies. Lastly, inoculant producers must focus selecting higher chance having little negligible impacts.

Язык: Английский

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Plant-microbe interactions in the rhizosphere for smarter and more sustainable crop fertilization: the case of PGPR-based biofertilizers

Frontiers in Microbiology, Год журнала: 2024, Номер 15

Опубликована: Авг. 8, 2024

Biofertilizers based on plant growth promoting rhizobacteria (PGPR) are nowadays gaining increasingly attention as a modern tool for more sustainable agriculture due to their ability in ameliorating root nutrient acquisition. For many years, most research was focused the screening and characterization of PGPR functioning nitrogen (N) or phosphorus (P) biofertilizers. However, with increasing demand food using far fewer chemical inputs, new investigations have been carried out explore potential use such bacteria also potassium (K), sulfur (S), zinc (Zn), iron (Fe) In this review, we update biofertilizers smarter crop production deliberate prospects microbiome engineering-based methods tools shed light improvement mineral nutrition. The current era omics revolution has enabled design synthetic microbial communities (named

Язык: Английский

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Functional and Genomic Potential of Burkholderia contaminans PB_AQ24 Isolate for Boosting the Growth of Bamboo Seedlings in Heavy Metal Contaminated Soils

Applied Biochemistry and Biotechnology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 4, 2025

Язык: Английский

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Application of Biochar-Immobilized Bacillus megaterium for Enhancing Phosphorus Uptake and Growth in Rice

Plants, Год журнала: 2025, Номер 14(2), С. 214 - 214

Опубликована: Янв. 14, 2025

Phosphorus (P) is an essential nutrient for rice growth, and the presence of phosphate-solubilizing bacteria (PSB) effective means to increase soil P content. However, direct application PSB may have minimal significance due their low survival in soil. Biochar serves as a carrier that enhances microbial survival, its porous structure surface characteristics ensure adsorption Bacillus megaterium. Inoculating husk biochar-immobilized with megaterium (BMB) resulted dissolved inorganic organic levels 39.55 31.97 mL L−1, respectively. Subsequently, pot experiments were conducted investigate response mobilization uptake fertilizer inputs. The (OF) combined BMB treatment (MOF) showed highest available phosphorus (AP) at 38 days, value 7.83 mg kg−1, well increased pqqC abundance while decreasing phoD bacterial communities compared control. Furthermore, bioavailable reservoir (H2O–Pi NaHCO3–Pi) was greatly through input turnover, H2O–Pi (3.66 kg−1) OF NaHCO3–Pi (52.65 MOF treatment. Additionally, carbon utilization analysis applied using commercial Biolog system, revealing significantly carbohydrates, polymers, amino acid sources. Moreover, control, shoot (0.469%) root (0.516%) content promoting development thereby supporting growth. Our study demonstrates displayed higher both plants, providing theoretical basis further understanding role biochar-based agents management.

Язык: Английский

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Application of Indigenous Rhizospheric Microorganisms and Local Compost as Enhancers of Lettuce Growth, Development, and Salt Stress Tolerance

Microorganisms, Год журнала: 2022, Номер 10(8), С. 1625 - 1625

Опубликована: Авг. 11, 2022

This study aimed to mitigate salt stress effects on lettuce by using native biostimulants (arbuscular mycorrhizal fungi (M, consortium), plant growth-promoting rhizobacteria (R, Z2, and Z4 strains), compost (C)) applied alone or in combination under salinity (0, 50, 100 mM NaCl). Physiological, biochemical, nutritional, mycorrhizal, growth, soil characteristics were evaluated. Results revealed that growth physiological traits negatively affected salinity. However, colonization was enhanced NaCl after application. The biostimulants, particularly M and/or R improved the tolerance of increasing dry biomass 119% 113% NaCl, respectively, for MR treatments. Similarly, stomatal conductance (47%), water content (260%), total chlorophyll (130%), phosphorus (363%), reduced malondialdehyde (54%) hydrogen peroxide (78%) compared control. Moreover, peroxidase activity (76%) sugar (36%) CM treatment, while protein (111%) proline (104%) contents significantly boosted treatment NaCl. Furthermore, glomalin severe In conclusion, might help tolerate enhance its production degraded areas.

Язык: Английский

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Secondary Metabolites, Osmolytes and Antioxidant Activity as the Main Attributes Enhanced by Biostimulants for Growth and Resilience of Lettuce to Drought Stress

Gesunde Pflanzen, Год журнала: 2023, Номер 75(5), С. 1737 - 1753

Опубликована: Янв. 16, 2023

Язык: Английский

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Prospects of phosphate solubilizing microorganisms in sustainable agriculture

World Journal of Microbiology and Biotechnology, Год журнала: 2024, Номер 40(10)

Опубликована: Авг. 6, 2024

Язык: Английский

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Cultural techniques capture diverse phosphate-solubilizing bacteria in rock phosphate-enriched habitats

Frontiers in Microbiology, Год журнала: 2024, Номер 15

Опубликована: Фев. 7, 2024

Phosphorus (P) deficiency is a common problem in croplands where phosphate-based fertilizers are regularly used to maintain bioavailable P for plants. However, due their limited mobility the soil, there has been an increased interest microorganisms that can convert insoluble into form, and use develop phosphate-solubilizing bioinoculants as alternative conventional of fertilizers. In this study, we proposed two independent experiments explored entirely different habitats trap bacteria (PSBs). first experiment, PSBs were isolated from rhizoplane native plant species grown rock-phosphate (RP) mining area. A subset 24 bacterial isolates 210 morphotypes was selected inorganic phosphate solubilizing activities using tricalcium (TCP) sole source. second innovative experimental setup select mycohyphospheric associated arbuscular mycorrhizal fungal hyphae, indigenous soils agronomic have trapped membrane bag filled with RP. 25 44 tested activities. These subsets then screened additional growth-promoting (PGP) traits, 16S rDNA sequencing performed identification. Overall, isolation resulted diverse phylogenetic affiliations PSB collection, showing only 4 genera (24%) 5 (17%) shared between communities, thus underlining value protocols, including isolate selection method, selecting greater biodiversity cultivable PSB. All positive ammonia production. Indol-3-acetic acid (IAA) production observed 13 20 isolates, respectively among PSB, ranging, respectively, 32.52 330.27 μg mL −1 41.4 963.9 . Only five 12 positively N 2 fixation. Four identified siderophore producers, while none were. The phenotype one isolate, assigned Pseudomonas , showed four additive PGP Some strains belonging dominant Bacillus could be considered potential candidates further formulation biofertilizer order bioinoculant consortia promote nutrition growth RP-enriched soils.

Язык: Английский

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Isolation and Identification of Acer truncatum Endophytic Fungus Talaromyces verruculosus and Evaluation of Its Effects on Insoluble Phosphorus Absorption Capacity and Growth of Cucumber Seedlings

Journal of Fungi, Год журнала: 2024, Номер 10(2), С. 136 - 136

Опубликована: Фев. 8, 2024

The symbiosis between endophytic fungi and plants can promote the absorption of potassium, nitrogen, phosphorus, other nutrients by plants. Phosphorus is one indispensable nutrient elements for plant growth development. However, content available phosphorus in soil very low, which limits Phosphorus-soluble microorganisms improve utilization rate insoluble phosphorus. In this study, Talaromyces verruculosus (T. verruculosus), a potential phosphorus-soluble fungus, was isolated from Acer truncatum, with strong stress resistance, its ability relation to cucumber seedlings under different treatment conditions determined. addition, morphological, physiological, biochemical indexes were assessed. results show that T. could solubilize tricalcium phosphate (TCP) lecithin, solubilization effect lecithin higher than TCP. After application verruclosus, leaf photosynthetic index increased significantly. system damage caused low alleviated, root morphological increased. height, stem diameter, area treated also significantly those without treatment. Therefore, it shown beneficial fungus resistance. This study will provide useful reference further research on

Язык: Английский

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