Plant-Growth-Promoting Microorganisms: Their Impact on Crop Quality and Yield, with a Focus on Rice

International Journal of Plant Biology, Journal Year: 2025, Volume and Issue: 16(1), P. 9 - 9

Published: Jan. 9, 2025

This article presents a systematic review of the ecophysiological mechanisms underpinning essential role plant-growth-promoting microorganisms (PGPMs) in improving rice yield and quality. The scientific literature is thoroughly reviewed, highlighting how PGPMs positively influence growth, development, health plants. Key aspects, such as nitrogen fixation, nutrient solubilization, hormone production, disease resistance induction, are emphasized. Additionally, technological advancements related to PGPM use analyzed, including identification effective strains, formulation enhanced biofertilizers, genetic engineering. concludes that represent promising tool with which boost sustainability productivity cultivation, providing robust foundation for future research practical applications field crucial global food security.

Language: Английский

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Introducing the Power of Plant Growth Promoting Microorganisms in Soilless Systems: A Promising Alternative for Sustainable Agriculture

Sustainability, Journal Year: 2023, Volume and Issue: 15(7), P. 5959 - 5959

Published: March 29, 2023

Soilless systems, such as hydroponics and aquaponics, are gaining popularity a sustainable alternative to traditional soil-based agriculture, aiming at maximizing plant productivity while minimizing resource use. Nonetheless, the absence of soil matrix poses challenges that require precise management nutrients, effective control salinity stress, proactive strategies master disease management. Plant growth-promoting microorganisms (PGPM) have emerged promising solution overcome these issues. Research demonstrated Bacillus, Pseudomonas, Azospirillum most extensively studied genera for their effectiveness growth promoters, inducing changes in root architecture morphology. Furthermore, PGPM inoculation, either alone or synergy, can reverse effects nutrient deficiency salt stress. The Pseudomonas Trichoderma were recognized solid antagonistic traits, which make them highly biocontrol agents hydroponic systems. latest findings indicate ability significantly reduce severity index (DSI) through mycoparasitism, antibiosis, induced systemic resistance. In aquaponic inoculation with Bacillus subtilis brasilense increased dissolved oxygen, improving water quality parameters benefiting fish metabolism. This review also establishes interaction variability between growing media, implying specificity determining maximize soilless cultivation These suggest using soil-free settings could contribute crop production, addressing management, control,

Language: Английский

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Endophytic Bacillus strains enhance biomass and bioactive metabolites of Gloriosa superba

Industrial Crops and Products, Journal Year: 2023, Volume and Issue: 204, P. 117296 - 117296

Published: Aug. 11, 2023

Language: Английский

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Rhizospheric Bacteria of Cover Legumes from Acidic Soils Are Capable of Solubilizing Different Inorganic Phosphates

Microorganisms, Journal Year: 2024, Volume and Issue: 12(6), P. 1101 - 1101

Published: May 29, 2024

Due to its adsorption with aluminum and iron hydroxides, phosphorus viability is low in acidic soils; thus, the aim of this study was isolate identify bacteria from rhizosphere four legumes growing soils Cumbaza Sub-basin, San Martín, Peru, as well characterize their ability solubilize phosphate phosphate. The isolation process conducted on TSA medium isolates were classified based origin morphocolonial characteristics, bacillary shape being most frequent, followed by cocci. To assess solubilization phosphates, liquid GELP employed. Sixteen strains selected, among which three stood out for effectiveness solubilizing AlPO4 (Sfcv-098-02, 22.65 mg L−1; Sfc-093-04, 26.50 Sfcv-041-01-2, 55.98 L−1) one FePO4 (Sfcr-043-02, 32.61 L−1). These molecularly characterized, identified Enterobacter sp., Pseudomonas Staphylococcus sp. Additionally, a decrease pH observed reactions, values ranging 5.23 3.29, enhanced solubilization. This suggests that selected could be used improve availability agricultural soils.

Language: Английский

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Co-Inoculation of Phosphate-Solubilizing Bacteria and Rhizobia Increases Phosphorus Availability and Promotes the Development of Forage Legumes

Agronomy, Journal Year: 2024, Volume and Issue: 14(11), P. 2493 - 2493

Published: Oct. 24, 2024

Tropical grassland soils, especially those with alkaline properties, often exhibit limited phosphorus availability due to its precipitation in insoluble forms. Phosphate-solubilizing bacteria (PSB) and rhizobia have demonstrated their potential enhance the of this nutrient promote growth forage legumes. This study, conducted under controlled conditions a mesh house, evaluated effect co-inoculation PSB, including Micrococcus sp. Sfcm-14-01, Agrobacterium Sfl-043-09, Enterobacter Sfcm-014-02 Sfcm-054-06, along (Ensifer terangae R1-012-02 Bradyrhizobium glycinis Rcm-025-01), different levels fertilization on legumes Leucaena leucocephala Centrosema macrocarpum. The results indicate significant increases various parameters, such as chlorophyll (SPAD), biomass (dry weight roots aerial parts) (mg), foliar concentration (ppm), available soil, particularly low-phosphorus conditions. highest level soil was achieved 75% recommended dose, resulting concentrations 13.73 ppm for L. 7.69 C. macrocarpum, representing 170.81% 240.27%, respectively, compared no or inoculation. These findings suggest that PSB native is promising strategy productivity mineral content tropical grazing systems, phosphorus-limited

Language: Английский

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Functional and genomic analyses of plant growth promoting traits in Priestia aryabhattai and Paenibacillus sp. isolates from tomato rhizosphere

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 28, 2025

This study investigated plant growth-promoting (PGP) mechanisms in Priestia aryabhattai VMYP6 and Paenibacillus sp. VMY10, isolated from tomato roots. Their genomes were initially assessed silico through various approaches, these observations then compared with results obtained vitro vivo. Both possess genes associated the production of siderophores, indole acetic acid (IAA) cytokinins (CKs), all which have been shown to promote growth. The two strains able produce compounds vitro. Although both harbor for phosphorus solubilization, only VMY10 demonstrated this ability Genes linked flagellar assembly chemotaxis identified cases. colonize roots, even though lacked motility no flagella observed microscopically. In greenhouse, plants inoculated showed increased biomass, leaf area, root length. These findings underscore importance integrating assays, genomic analyses, trials gain a comprehensive insight into PGP rhizobacteria like VMY10. Such may contribute improving selection used as biofertilizers tomato, major crop worldwide.

Language: Английский

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Genetic Characterization and Growth Promotion Mechanisms of Burkholderia vietnamiensis Isolated from Rice Cultivars in Peru

The Open Agriculture Journal, Journal Year: 2025, Volume and Issue: 19(1)

Published: Feb. 20, 2025

Introduction/Background Burkholderia is a versatile bacterial genus, and from biotechnological point of view, it source diverse secondary metabolites with enormous application potential, especially in agriculture. Objective This study aimed to isolate diazotrophic bacteria-associated rice roots the genetic PGPR diversity among strains effect their inoculation two cultivars. Methods Strains were isolated using nitrogen-free semisolid media tested by specific amplification recA gene. The production auxins, siderophores, phosphate solubilization, antagonism against phytopathogenic fungi was evaluated, finally, into varieties also examined. Results Only 5.13% positive for gene -specific primers. Sequence analysis showed high similarity vietnamiensis . These produced auxins tryptophan-supplemented broth (up 13.98 µg mL -1 ), siderophores 139.52%), solubilization 15.99 mg PO 4 as well antibiotic antagonistic capacities five pathogenic rice. increased vigor index cultivars compared non-inoculated or non-fertilized treatment. antifungal activities B. fungi, Nakataea sigmoidea Nigrospora oryzae, are described first time. Conclusion Due taxonomic affinity our within cepacia complex, direct use agriculture not recommended; however, further research required exploit potential synthesis useful metabolites.

Language: Английский

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The Complex GH32 Enzyme Orchestra from Priestia megaterium Holds the Key to Better Discriminate Sucrose-6-phosphate Hydrolases from Other β-Fructofuranosidases in Bacteria

Journal of Agricultural and Food Chemistry, Journal Year: 2024, Volume and Issue: 72(2), P. 1302 - 1320

Published: Jan. 4, 2024

Inulin is widely used as a prebiotic and emerging priming compound to counteract plant diseases. We isolated inulin-degrading strains from the lettuce phyllosphere, identified Bacillus subtilis Priestia megaterium, species hosting well-known biocontrol organisms. To better understand their varying inulin degradation strategies, three intracellular β-fructofuranosidases P. megaterium NBRC15308 were characterized after expression in Escherichia coli: predicted sucrose-6-phosphate (Suc6P) hydrolase (SacAP1, supported by molecular docking), an exofructanase (SacAP2), invertase (SacAP3). Based on protein multiple sequence structure alignments of bacterial glycoside family 32 enzymes, we conserved residues be involved binding phosphorylated (Suc6P hydrolases) or nonphosphorylated substrates (invertases fructanases). Suc6P hydrolases feature positively charged near structural catalytic pocket (histidine, arginine, lysine), whereas other contain tryptophans. This correlates with our phylogenetic tree, grouping all clan associated genomic regions coding for transporters substrate phosphorylation. These results will help discriminate between future studies interaction B. endophytes sucrose and/or fructans, sugars naturally present plants exogenously applied context defense priming.

Language: Английский

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Bio-inoculant consortia modulated plantain (Musa × paradisiaca L.) growth, rhizosphere pH, acid phosphatase and urease activity

Soil Advances, Journal Year: 2024, Volume and Issue: 2, P. 100008 - 100008

Published: July 2, 2024

Fertilizers influence biochemical interactions in the rhizosphere that can affect crop performance. This study evaluated interaction of plantain (Musa × paradisiaca) growth with soil pH, acid phosphatase and urease activities under different fertilizer amendments Buea mono-modal Akonolinga bi-modal rainfall patterns Cameroon. The two experiments were setup June 2021 following a randomized complete block design NPK (nitrogen, phosphorus, potassium), bio-inoculant consortia (plant growth-promoting bacteria – PGPB, Beauveria, Trichoderma, PGPB + Trichoderma), untreated control, four replications each. Soil samples collected on 30th September April 2022 for analyses physico-chemical biological properties. Higher performance occurred than across samplings, while treatments modulated Significant correlations between height or stem girth activities. is clayey 38 % higher clay content Buea, was clay-loamy times more silt Akonolinga. pre- post-planting pH strongly acidic as compared to extremely Akonolinga, significant variation treatments, sampling time, field sites. positive correlation indicate functional relationships highlight effects, time site-specific variations, their Thereby, highlighting role locally formulated bio-inoculants improving These findings open up avenues further studies nutrient uptake, control pests diseases, order promote holistic management approach integrates bio-inoculants, type, factors.

Language: Английский

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The Biotechnological Potential of Plant Growth-Promoting Rhizobacteria Isolated from Maize (Zea mays L.) Cultivations in the San Martin Region, Peru

Plants, Journal Year: 2024, Volume and Issue: 13(15), P. 2075 - 2075

Published: July 26, 2024

Maize (

Language: Английский

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