Halotolerant Rhizobacteria Promote Plant Growth and Decrease Salt Stress in Carya illinoinensis (Wangenh.) K. Koch DOI Creative Commons
Rubén Palacio-Rodríguez, Jorge Sáenz‐Mata, Ricardo Trejo‐Calzada

et al.

Agronomy, Journal Year: 2023, Volume and Issue: 13(12), P. 3045 - 3045

Published: Dec. 13, 2023

Pecan cultivation holds significant global importance. Salinity negatively affects the physiology and metabolism of plant. However, certain plant growth-promoting rhizobacteria (PGPR) have ability to reduce salt stress in plants. The objective was analyze effects Bacillus paralicheniformis strain LBEndo1 on development pecan seedlings under salinity conditions. Two factors were analyzed: presence saline bacterial inoculation. application conducted at a concentration 1 × 108 CFU/mL, irrigation administered every third day with 80 mL water containing 50 mM NaCl. results show that has maximum tolerance 15% salinity. Furthermore, inoculation PGPR significantly increased biomass seedlings, including dry weight leaves, stem, roots, as well stem diameter height. interacted exhibited superior conditions, increases 105.5% chlorophyll 112% proline accumulation compared non-inoculated seedlings. Additionally, remarkable reduction leaf damage caused by observed. In conclusion, rhizobacteria, being resistant possessing multiple mechanisms promote growth while mitigating stress, potential be utilized alleviate biomass.

Language: Английский

Impact of Organic and Conventional Cropping Systems on Plant Growth-Promoting Rhizobacteria (PGPR) DOI

Trasmundi Flaviano,

Junior Bernardo Molina-Hernández, Angelica Galieni

et al.

Biocatalysis and Agricultural Biotechnology, Journal Year: 2025, Volume and Issue: unknown, P. 103527 - 103527

Published: Feb. 1, 2025

Language: Английский

Citations

1
Screening of Plant Growth-Promoting Rhizobacteria and their Growth-Promoting Activities for Stipa Purpurea in Alpine Grassland DOI

Ganjun Yi,

Juan Li, Xin Wang

et al.

Journal of Applied Microbiology, Journal Year: 2025, Volume and Issue: 136(3)

Published: Feb. 26, 2025

Stipa purpurea is one of the dominant grass species in alpine grassland and plays a crucial role safeguarding ecosystem restoring degraded grassland. To enhance population dominance S. effectively prevent further degradation. In this study, we screened high-efficiency plant growth-promoting rhizobacteria (PGPR) from rhizosphere soil samples, with aim improving growth activity through spraying PGPR. We selected functional medium for isolation PGPR soils five distinct sampling sites grasslands surrounding Qinghai Lake. Nitrogenase activity, phosphorus-solubilization, carbon-fixation, indole acetic acid (IAA)-like compounds production, 1-aminocyclopropane-1-carboxylate deaminase production were used to assess capability Additionally, ecological adaptability was examined. Finally, promotion effect on determined using pot experiments. The results study showed that 136 strains isolated categorized into 18 genera based 16S rRNA sequences. Among these, seven exhibited multiple characteristics promoting growth, meanwhile, GD-1-1, YD-2-4, GD-3-9, HD-1-1 strong resistance drought, cold, UV, oxidation. GD-1-1 YD-2-4 had effects purpurea, which significantly seed germination rate, facilitate above-ground part seedlings, formation lateral roots. principal component analysis indicated interaction PGPRs young roots more beneficial than sprout. provide outstanding strain resources theoretical foundation restoration findings basis research development microbial fertilizer.

Language: Английский

Citations

0
Microbial survival strategies in desiccated roots of Myrothamnus flabellifolia DOI Creative Commons
Shandry M. Tebele, Rose A. Marks, Jill M. Farrant

et al.

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: March 28, 2025

Root-associated microbiomes are critical to plant vigor, particularly under drought stress. The spatial dynamics of microbial community diversity and composition strongly influenced by root environmental factors. While the desiccation tolerance resurrection Myrothamnus flabellifolia using leaf tissue has been previously investigated, transcriptional responses its root-associated remain completely unexplored. Here, we conducted metatranscriptome sequencing on samples M. collected in field across four states: dry, desiccated, partially hydrated, fully hydrated. Bacterial transcripts dominated all conditions. Desiccated roots exhibited a significant increase from Actinomycetota, whereas hydrated showed an enrichment Pseudomonadota. Under desiccation, bacteria upregulated genes involved antioxidant systems, trehalose biosynthesis, hormonal regulation. These findings highlight adaptive mechanisms withstand extreme water loss. In contrast, bacterial response was characterized linked peptidoglycan sugar transporters, chemotaxis. Taken together, our indicate that deploy defense analogous those their host adapt stress, highlighting crucial role resilience.

Language: Английский

Citations

0
Isolation of a novel microplastic-degrading bacterial strain: a promising agent for low-density polyethylene remediation DOI Creative Commons
Serena Benedetta Cabigliera, Dario Gaudioso, David Chelazzi

et al.

Chemosphere, Journal Year: 2025, Volume and Issue: 379, P. 144400 - 144400

Published: April 18, 2025

Language: Английский

Citations

0
Biogenic Synthesis of Antibacterial and Antioxidant Silver Nanoparticles Using Enterococcus faecium DU.FS-Derived Exopolysaccharides: A Sustainable Approach for Green Nanotechnology DOI

Parvin Chegini,

Fatemeh Salimi, Ehsan Nazarzadeh Zare‬

et al.

Journal of Polymers and the Environment, Journal Year: 2024, Volume and Issue: 32(11), P. 6080 - 6095

Published: July 18, 2024

Language: Английский

Citations

3
Microorganisms Isolated from Saharan Dust Intrusions in the Canary Islands and Processes of Mineral Atmospherogenesis DOI Creative Commons
Azahara Navarro, Ana del Moral,

Irene de Pablos

et al.

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(5), P. 1862 - 1862

Published: Feb. 24, 2024

Global warming due to climate change has increased the frequency of sand and dust storms that affect air quality ecosystems in general, contributing pollution. The Sahara Desert is most potent emitter atmospheric dust. atmosphere an extreme environment microorganisms living troposphere are exposed greater ultraviolet radiation, desiccation, low temperatures nutrient deprivation than other habitats. Iberian Peninsula, specifically Canary Islands—due its strategic location—is one regions receive more Saharan particles annually, increasing year after year, although culturable had previously never been described. In present work, samples were collected from three calima events Islands between 2021 2022. sizes, mineralogical compositions chemical determined by laser diffraction, X-ray diffraction (XRD) photoelectron spectroscopy (XPS), respectively. Particle morphology biological features also studied scanning electron microscopy (SEM-EDX) confocal (CLSM). mineral–bacteria interactions described microscopic observations, which revealed presence iberulites small neoformed kaolinite crystals association with bacteria. This article defines term “mineral atmospherogenesis” variant, bioatmospherogenesis”, through microbial interaction. first case produced mineral bioatmospherogenesis. bacterial growth was illustrated SEM images, constituting a novel finding. Twenty-three isolated identified 16S rRNA sequencing. Members phyla Pseudomonadota, Bacillota Actinomycetota have found. Some these microorganisms, such as Peribacillus frigoritolerans, Plant Growth-Promoting Rhizobacteria (PGPR) properties. Potential human pathogenic bacteria Acinetobacter lwoffii desert Islands, together transported components bacteria, could significant impact on ecosystem health.

Language: Английский

Citations

1
Combination of silicon and plant growth promoting rhizobacteria consortia promoted the growth of melon seedlings under salt stress DOI

Yuze Guo,

Huiling Guo, Yang Liu

et al.

Horticulture Environment and Biotechnology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 2, 2024

Language: Английский

Citations

0
Enhanced Growth and Productivity of Arthrospira platensis H53 in a Nature-like Alkalophilic Environment and Its Implementation in Sustainable Arthrospira Cultivation DOI Open Access
Kittipat Chotchindakun, Songphon Buddhasiri, Panwong Kuntanawat

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(19), P. 8627 - 8627

Published: Oct. 5, 2024

Synthetic culture media, such as Zarrouk’s medium (ZM), are widely used in industrial Arthrospira cultivation but rely heavily on chemical fertilizers, raising concerns over cost and environmental impact. In natural habitats where blooms, the macronutrient concentrations much lower than those provided by synthetic media. We hypothesized that growth may be facilitated a microbial consortium. To test this, we developed lab-scale platensis H53 system using newly organic compost (OCM), designed to mimic nutrient composition interactions. Compared ZM, A. grown OCM exhibited elevated day 7. The specific rate was 0.20 day−1, higher of 0.17 day−1 with optical density values reaching 1.57, compared 1.13 ZM. A 1.63-fold increase biomass observed OCM, despite initial concentrations. Nutrient use efficiency (NUE) significantly improved, nitrate (NO3−) phosphate (PO43−) utilization up 5.8-fold higher. Additionally, filaments were more tightly coiled, indicating physiological change response lowered Microbial analysis 16S rRNA gene amplicon sequencing revealed presence growth-promoting bacteria, including Pontibacter spp., Brevundimonas Aliihoeflea likely contributing cycling enhanced growth. These findings suggest potential symbiotic interactions between cyanobacteria non-cyanobacteria system, promoting increased productivity. This study is first propose symbiosis an extremely alkalophilic environment, offering another sustainable alternative traditional chemical-based methods.

Language: Английский

Citations

0
Halotolerant Rhizobacteria Promote Plant Growth and Decrease Salt Stress in Carya illinoinensis (Wangenh.) K. Koch DOI Creative Commons
Rubén Palacio-Rodríguez, Jorge Sáenz‐Mata, Ricardo Trejo‐Calzada

et al.

Agronomy, Journal Year: 2023, Volume and Issue: 13(12), P. 3045 - 3045

Published: Dec. 13, 2023

Pecan cultivation holds significant global importance. Salinity negatively affects the physiology and metabolism of plant. However, certain plant growth-promoting rhizobacteria (PGPR) have ability to reduce salt stress in plants. The objective was analyze effects Bacillus paralicheniformis strain LBEndo1 on development pecan seedlings under salinity conditions. Two factors were analyzed: presence saline bacterial inoculation. application conducted at a concentration 1 × 108 CFU/mL, irrigation administered every third day with 80 mL water containing 50 mM NaCl. results show that has maximum tolerance 15% salinity. Furthermore, inoculation PGPR significantly increased biomass seedlings, including dry weight leaves, stem, roots, as well stem diameter height. interacted exhibited superior conditions, increases 105.5% chlorophyll 112% proline accumulation compared non-inoculated seedlings. Additionally, remarkable reduction leaf damage caused by observed. In conclusion, rhizobacteria, being resistant possessing multiple mechanisms promote growth while mitigating stress, potential be utilized alleviate biomass.

Language: Английский

Citations

1