The Role of Plant Growth-Promoting Rhizobacteria (PGPR) in Mitigating Plant’s Environmental Stresses

Applied Sciences, Journal Year: 2022, Volume and Issue: 12(3), P. 1231 - 1231

Published: Jan. 25, 2022

Phytoremediation is a cost-effective and sustainable technology used to clean up pollutants from soils waters through the use of plant species. Indeed, plants are naturally capable absorbing metals degrading organic molecules. However, in several cases, presence contaminants causes suffering limited growth. In such situations, thanks production specific root exudates, can engage most suitable bacteria able support their growth according particular environmental stress. These growth-promoting rhizobacteria (PGPR) may facilitate development with beneficial effects, even more evident when grown critical conditions, as toxic contaminants. For instance, PGPR alleviate metal phytotoxicity by altering bioavailability soil increasing translocation within plant. Since many also hydrocarbon oxidizers, they enhance biodegradation activity. Besides, agriculture be an excellent counter devastating effects abiotic stress, excessive salinity drought, replacing expensive inorganic fertilizers that hurt environment. A better in-depth understanding function interactions associated microorganisms directly matrix interest, especially persistent contamination, could provide new opportunities for phytoremediation.

Language: Английский

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Effects of Abiotic Stress on Soil Microbiome

International Journal of Molecular Sciences, Journal Year: 2021, Volume and Issue: 22(16), P. 9036 - 9036

Published: Aug. 21, 2021

Rhizospheric organisms have a unique manner of existence since many factors can influence the shape microbiome. As we all know, harnessing interaction between soil microbes and plants is critical for sustainable agriculture ecosystems. We achieve agricultural practice by incorporating plant-microbiome as positive technology. The contribution this has piqued interest experts, who plan to do more research using beneficial microorganism in order accomplish vision. Plants engage wide range interrelationship with microorganism, spanning entire spectrum ecological potential which be mutualistic, commensal, neutral, exploitative, or competitive. Mutualistic found plant-associated microbial communities assist their host number ways. Many studies demonstrated that microbiome may provide significant advantages plant. However, various conditions (pH, temperature, oxygen, physics-chemistry moisture), environments (drought, submergence, metal toxicity salinity), plant types/genotype, practices result distinct composition characteristics, well its mechanism promote development defence against these stressors. In paper, an in-depth overview how above are able affect structure change below ground interactions. Future prospects will also discussed.

Language: Английский

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The Potential Application of Endophytes in Management of Stress from Drought and Salinity in Crop Plants

Microorganisms, Journal Year: 2021, Volume and Issue: 9(8), P. 1729 - 1729

Published: Aug. 13, 2021

Endophytic microorganisms present inside the host plant play an essential role in fitness, nutrient supply and stress tolerance. Endophytes are often used sustainable agriculture as biofertilizers, biopesticides inoculants to mitigate abiotic stresses including salinity, drought, cold pH variation soil. In changing climatic conditions, create global challenges achieve optimum crop yields agricultural production. Plants experience conditions that involve endogenous boosting of their immune system or overexpression defensive redox regulatory systems with increased reactive oxygen species (ROS). However, rising factors overwhelm natural protection plants, which leads massive internal oxidative damage death. integral partner hosts have been shown via modulating local systemic mechanisms producing antioxidants counteract ROS plants. Advancements omics other technologies made, but potential application endophytes remains largely unrealized. this review article, we will discuss diversity, population interaction plants well applications management.

Language: Английский

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Critical steps in the restoration of coal mine soils: Microbial-accelerated soil reconstruction

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 368, P. 122200 - 122200

Published: Aug. 24, 2024

Language: Английский

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Biochar from agricultural waste as a strategic resource for promotion of crop growth and nutrient cycling of soil under drought and salinity stress conditions: a comprehensive review with context of climate change

Journal of Plant Nutrition, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 52

Published: Feb. 6, 2025

Language: Английский

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Salinity Stress: Toward Sustainable Plant Strategies and Using Plant Growth-Promoting Rhizobacteria Encapsulation for Reducing It

Sustainability, Journal Year: 2021, Volume and Issue: 13(22), P. 12758 - 12758

Published: Nov. 18, 2021

Salinity is one of the most important abiotic stresses that influences plant growth and productivity worldwide. affects by ionic toxicity, osmotic stress, hormonal imbalance, nutrient mobilization reduction, reactive oxygen species (ROS). To survive in saline soils, plants have developed various physiological biochemical strategies such as ion exchange, activation antioxidant enzymes, stimulation. In addition to adaption mechanisms, growth-promoting rhizobacteria (PGPR) can enhance salt tolerance via homeostasis, production antioxidants, ACC deaminase, phytohormones, extracellular polymeric substance (EPS), volatile organic compounds, accumulation osmolytes, antioxidative improvement nutrients uptake. One issues microbial biotechnology establishing a link between beneficial strains screened laboratory with industry consumer. Therefore, development biocontrol agents, it necessary study optimization conditions for mass reproduction selection suitable carrier their final formulation. Toward sustainable agriculture, use appropriate formulations bacterial agents high-performance biofertilizers, including biocapsules, improve crop productivity.

Language: Английский

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Perspectives on the microorganism of extreme environments and their applications

Current Research in Microbial Sciences, Journal Year: 2022, Volume and Issue: 3, P. 100134 - 100134

Published: Jan. 1, 2022

Extremophiles are organisms that can survive and thrive in conditions termed as "extreme" by human beings. Conventional methods cannot be applied under extreme like temperature pH fluctuations, high salinity, etc. for a variety of reasons. function adapted to these environments sustainable, cheaper, efficient, therefore, they serve better alternatives the traditional methods. They adapt with biochemical physiological changes produce products extremolytes, extremozymes, biosurfactants, etc., which found useful wide range industries sustainable agriculture, food, cosmetics, pharmaceuticals. These also play crucial role bioremediation, production biofuels, biorefinery, astrobiology. This review paper comprehensively lists out current applications extremophiles their various explores prospects same. help us understand underlying basis biological mechanisms exploring boundaries life thus origin evolution on Earth. helps research extra-terrestrial space exploration. The structure properties along any possible long-term effects need investigated further.

Language: Английский

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Plant Growth-Promoting Bacteria (PGPB) integrated phytotechnology: A sustainable approach for remediation of marginal lands

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: Oct. 21, 2022

Land that has little to no utility for agriculture or industry is considered marginal land. This kind of terrain frequently found on the edge deserts other arid regions. The amount land can be used continues constrained by increasing desertification, which being caused climate change and deterioration agriculturally areas. Plants associated microorganisms are remediate enhance soil quality They represent a low-cost usually long-term solution restoring fertility. Among various phytoremediation processes (viz., phytodegradation, phytoextraction, phytostabilization, phytovolatilization, phytofiltration, phytostimulation, phytodesalination), employment specific mechanism determined state soil, presence concentration contaminants, plant species involved. review focuses key economically important plants phytoremediation, as well challenges growth capability with emphasis advantages limits in soil. Plant growth-promoting bacteria (PGPB) boost development promote bioremediation secreting variety metabolites hormones, through nitrogen fixation, nutrients’ bioavailability mineral solubilization. also emphasizes role PGPB under different abiotic stresses, including heavy-metal-contaminated land, high salinity environments, organic contaminants. In our opinion, improved fertility lands using significant (e.g., Miscanthus ) dual precession technology will result reclamation general restoration native vegetation.

Language: Английский

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Impacts of salinization caused by sea level rise on the biological processes of coastal soils - A review

Frontiers in Environmental Science, Journal Year: 2022, Volume and Issue: 10

Published: Aug. 4, 2022

Soil salinization caused by sea level rise threatens coastal agricultural soils and geochemically important wetlands worldwide. The aim of this review is to outline expected changes in soil biological activity discussing the combined effects salt stress flooding on plants productivity microbial communities, which determine consequences fluxes C, N P. Finally, it outlines repercussions greenhouse gases emissions. prediction outcomes made difficult concomitant sometimes contrasting actions seawater intrusion partly acclimated non-acclimated environments. Non-salt suffer from osmotic stress, but also reduced O 2 solubility. Microbial biomass declines with increasing salinity communities shift composition. Large concentrations Cl − inhibit nitrification, stimulates fluxes. Impacts C mineralisation rates variable enhanced larger availability terminal electron acceptors. reduction Fe that SO 4 2− could enhance P mobility. Salinization affects methanogenesis constrained favour reduction. Consequences are largely site specific predict because complex network processes occurring simultaneously different compartments (i.e., soil, microbiome, vegetation). distinction between short long term important. A reliable at a planetary scale will only result more precise inventories monitoring areas displaying similarities implementation these well-defined data sets specifically devised models whose results can be finally weighted basis.

Language: Английский

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Salt-affected soils: field-scale strategies for prevention, mitigation, and adaptation to salt accumulation

Italian Journal of Agronomy, Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 22, 2023

The area of salt-affected soils is increasing globally, mainly due to land use and management malpractices, which can threaten soil health the sustainability farms. Climate change likely increase prevalence in many agricultural areas increased aridity and, coastal areas, sea water level. causes processes that develop are diverse result salinity, sodicity, alkalinity, or a combination these conditions. There need continuously update strategies tackle soils, finding solutions tailored at different scales. This work presents review current knowledge related identifies specific case studies for prevention, mitigation, adaptation salt accumulation field scale while addressing their limitations, advantages, research needs, innovation potential. presented show adequate irrigation drainage be used as preventive measure counter soils. Phyto bioremediation effective practices mitigation sodicity. Leaching measures salinity. Crop rotation organic matter adaptative improve plant tolerance newer approach, microbial management, shows potential an measure.

Language: Английский

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