Biofilms formation in plant growth-promoting bacteria for alleviating agro-environmental stress

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 907, P. 167774 - 167774

Published: Oct. 15, 2023

Language: Английский

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Biofilm forming, exopolysaccharide producing and halotolerant, bacterial consortium mitigates salinity stress in Triticum aestivum

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 262, P. 130049 - 130049

Published: Feb. 10, 2024

Language: Английский

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Coping with salt stress-interaction of halotolerant bacteria in crop plants: A mini review

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: Feb. 2, 2023

Salinity is one of the major environmental abiotic stress factors that limit growth and yield crop plants worldwide. It crucial to understand importance several adaptive mechanisms in toward salt so as increase agricultural productivity. Plant resilience salinity improved by cohabiting with diverse microorganisms, especially bacteria. In last few decades, increasing attention researchers has focused on bacterial communities for promoting plant fitness. The biotechnological applications salt-tolerant growth-promoting rhizobacteria (PGPR) gained widespread interest their numerous metabolites. This review provides novel insights into halotolerant (HT) bacteria associated enhancing tolerance stress. Furthermore, present highlights challenges using HT-PGPR field possible solutions overcome those sustainable agriculture development future.

Language: Английский

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Signaling and crosstalk of rhizobacterial and plant hormones that mediate abiotic stress tolerance in plants

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: June 30, 2023

Agricultural areas exhibiting numerous abiotic stressors, such as elevated water stress, temperatures, and salinity, have grown a result of climate change. As such, stresses are some the most pressing issues in contemporary agricultural production. Understanding plant responses to stressors is important for global food security, change adaptation, improving crop resilience sustainable agriculture, Over decades, explorations been made concerning tolerance these environmental stresses. Plant growth-promoting rhizobacteria (PGPR) their phytohormones players involved developing resistance stress plants. Several studies investigated part ability plants withstand adapt non-living factors, but very few focused on rhizobacterial hormonal signaling crosstalk that mediate The main objective this review evaluate functions PGPR outline current research communication govern responses. also includes gene networks regulation under diverse stressors. understanding using signaling. It envisaged offer useful approach increasing various However, further can reveal unclear patterns interactions between tolerance.

Language: Английский

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Pantoea agglomerans FAP10: A novel biofilm-producing PGPR strain improves wheat growth and soil resilience under salinity stress

Environmental and Experimental Botany, Journal Year: 2024, Volume and Issue: 222, P. 105759 - 105759

Published: April 3, 2024

Language: Английский

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Evaluation of Bacillus isolates as a biological control agents against soilborne phytopathogenic fungi

International Microbiology, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 20, 2024

Language: Английский

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Enhancing Water Status and Nutrient Uptake in Drought-Stressed Lettuce Plants (Lactuca sativa L.) via Inoculation with Different Bacillus spp. Isolated from the Atacama Desert

Plants, Journal Year: 2024, Volume and Issue: 13(2), P. 158 - 158

Published: Jan. 6, 2024

Drought is a major challenge for agriculture worldwide, being one of the main causes losses in plant production. Various studies reported that some soil's bacteria can improve tolerance to environmental stresses by enhancement water and nutrient uptake plants. The Atacama Desert Chile, driest place on earth, harbors largely unexplored microbial richness. This study aimed evaluate ability various

Language: Английский

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Bacillus Spizizenii FMH45-based biofertilizer enhances growth and halotolerance of cherry tomato plants under hydroponic cultivation systems

Frontiers in Sustainable Food Systems, Journal Year: 2025, Volume and Issue: 8

Published: Jan. 7, 2025

Introduction Hydroponic cultivation systems using desalinated groundwater may play pivotal role in reducing freshwater consumption for irrigation. However, reliance on desalination remains unsustainable due to its high cost, energy demand, and the serious environmental impacts of brine byproducts. Producing a biofertilizer that enables irrigation hydroponics by enhancing plant halotolerance resistance salt stress offers promising solution address scarcity low soil quality arid semi-arid regions, such as Arabian Gulf. Methods This study investigates potential Bacillus spizizenii FMH45 field experiment enhance tomato production under greenhouse directly without desalination. Results discussion demonstrated FMH45-based (HB45) significantly improved physiological parameters conditions. These improvements included notable increase shoot elongation (>13%), enhanced SPAD index values (>8%), significant rises flower fruit counts (≃ 11% 22%, respectively). B. HB45 showed bacterial densities over 100-fold various organs saline prevent infiltration into internal tissues. Furthermore, HB45-treatment oxidative response evidenced stable catalase activity, an approximately 50% reduction lipid peroxidation markers malondialdehyde (MDA), 35% decrease reactive oxygen species (ROS), including hydrogen peroxide (H 2 O ). findings demonstrate holds development effective biofertilizers capable mitigating while boosting crop productivity. approach sustainable alternative desalination-dependent hydroponics, particularly Qatar.

Language: Английский

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An exopolysaccharide-producing novel Agrobacterium pusense strain JAS1 isolated from snake plant enhances plant growth and soil water retention

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Dec. 9, 2022

A peculiar bacterial growth was very often noticed in leaf-initiated tissue cultures of Sansevieria trifasciata, a succulent belonging to the Asparagaceae family. The isolate left trails some highly viscous material on walls suspension vessels or developed thick overlay semisolid media without adversities plant growth. FTIR identified this substance be an extracellular polysaccharide. Various morphological, biochemical tests, and molecular analyses using 16S rRNA, atpD, recA genes characterized JAS1 as novel strain Agrobacterium pusense. Its mucoidal over Murashige Skoog yielded enormous exopolysaccharide (7252 mg l-1), while nutrient agar it only fast-growing swarms. As qualifying growth-promoting bacteria, produces significant indole-3-acetic acid (86.95 gibberellic (172.98 ammonia (42.66 µmol ml-1). Besides, siderophores, 1-aminocyclopropane-1-carboxylic deaminase, fixes nitrogen, forms biofilms, productively solubilizes soil inorganic phosphates, zinc. Under various treatments with JAS1, wheat chickpea resulted significantly enhanced shoot root parameters. PGP effects positively plants' physiological parameters reflecting increments overall chlorophyll, carotenoids, proline, phenols, flavonoids, sugar contents. In addition, isolated maintained both health under intermittent drying regime, probably by its EPS production attributes, respectively.

Language: Английский

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Metal-Resistant PGPR Strain Azospirillum brasilense EMCC1454 Enhances Growth and Chromium Stress Tolerance of Chickpea (Cicer arietinum L.) by Modulating Redox Potential, Osmolytes, Antioxidants, and Stress-Related Gene Expression

Plants, Journal Year: 2023, Volume and Issue: 12(11), P. 2110 - 2110

Published: May 26, 2023

Heavy metal stress, including from chromium, has detrimental effects on crop growth and yields worldwide. Plant growth-promoting rhizobacteria (PGPR) have demonstrated great efficiency in mitigating these adverse effects. The present study investigated the potential of PGPR strain Azospirillum brasilense EMCC1454 as a useful bio-inoculant for boosting growth, performance chromium stress tolerance chickpea (Cicer arietinum L.) plants exposed to varying levels (0, 130 260 µM K2Cr2O7). results revealed that A. could tolerate up exhibited various plant (PGP) activities, nitrogen fixation, phosphate solubilization, generation siderophore, trehalose, exopolysaccharide, ACC deaminase, indole acetic acid, hydrolytic enzymes. Chromium doses induced formation PGP substances antioxidants EMCC1454. In addition, experiments showed significantly inhibited minerals acquisition, leaf relative water content, biosynthesis photosynthetic pigments, gas exchange traits, phenolics flavonoids plants. Contrarily, it increased concentrations proline, glycine betaine, soluble sugars, proteins, oxidative markers, enzymatic (CAT, APX, SOD, POD) non-enzymatic (ascorbic acid glutathione) On other hand, application alleviated markers boosted characteristics, nutrient osmolyte formation, chromium-stressed Moreover, this bacterial inoculation upregulated expression genes related CHS, DREB2A, CHI, PAL). Overall, current effectiveness enhancing toxicity impacts grown under circumstances by modulating antioxidant machinery, photosynthesis, production, stress-related gene expression.

Language: Английский

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