Plant Growth-Promoting Rhizobacteria for Sustainable Agricultural Production

Microorganisms, Journal Year: 2023, Volume and Issue: 11(4), P. 1088 - 1088

Published: April 21, 2023

Rhizosheric bacteria with several abilities related to plant growth and health have been denominated Plant Growth-Promoting Rhizobacteria (PGPR). PGPR promote through modes of action, be it directly or indirectly. The benefits provided by these can include increased nutrient availability, phytohormone production, shoot root development, protection against phytopathogens, reduced diseases. Additionally, help plants withstand abiotic stresses such as salinity drought produce enzymes that detoxify from heavy metals. become an important strategy in sustainable agriculture due the possibility reducing synthetic fertilizers pesticides, promoting health, enhancing soil quality. There are many studies literature. However, this review highlights used for production a practical way, making possible reduce use phosphorus nitrogen fungicides, improve uptake. This addresses topics unconventional fertilizers, seed microbiome rhizospheric colonization, microorganisms, fixation chemical solubilizing mineralizing, siderophore fungicides pesticides agriculture.

Language: Английский

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Overview of biofertilizers in crop production and stress management for sustainable agriculture

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

Published: Aug. 23, 2022

With the increase in world population, demography of humans is estimated to be exceeded and it has become a major challenge provide an adequate amount food, feed, agricultural products majorly developing countries. The use chemical fertilizers causes plant grow efficiently rapidly meet food demand. drawbacks using higher quantity or synthetic are environmental pollution, persistent changes soil ecology, physiochemical composition, decreasing productivity cause several health hazards. Climatic factors responsible for enhancing abiotic stress on crops, resulting reduced productivity. There various types biotic like salinity, drought, wind, improper temperature, heavy metals, waterlogging, different weeds phytopathogens bacteria, viruses, fungi, nematodes which attack plants, reducing crop quality. shift toward biofertilizers due all these facts, nutrition through natural processes zinc, potassium phosphorus solubilization, nitrogen fixation, production hormones, siderophore, hydrolytic enzymes protect from pathogens conditions. They that sufficient healthy development fulfill demand increasing population worldwide, eco-friendly economically convenient. This review will focus their mechanisms action, role biotic/abiotic tolerance.

Language: Английский

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Heavy Metal Induced Oxidative Stress Mitigation and ROS Scavenging in Plants

Plants, Journal Year: 2023, Volume and Issue: 12(16), P. 3003 - 3003

Published: Aug. 20, 2023

Although trace elements are essential for life, environmental contamination due to metal accumulation and overuse in various sectors, such as healthcare, agriculture, industry, cosmetics, poses significant health concerns. Exposure of plants heavy metals leads the overproduction reactive oxygen species (ROS) their ability change mitochondrial membrane permeability restrict action ROS clearance enzymes cellular antioxidant system. The interaction with membranes, heavy-metal-induced interactions directly or indirectly different macromolecules, signaling pathways pollutants oxidative stress exposed organisms. metal–ROS–cell axis affects pathological processes ATP depletion, excess production, respiratory chain damage, decoupling phosphorylation, death. This review focuses on discussing toxic effects plants, particular emphasis stress, its consequences, mitigation strategies.

Language: Английский

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Insight into Recent Progress and Perspectives in Improvement of Antioxidant Machinery upon PGPR Augmentation in Plants under Drought Stress: A Review

Antioxidants, Journal Year: 2022, Volume and Issue: 11(9), P. 1763 - 1763

Published: Sept. 7, 2022

Agriculture has a lot of responsibility as the rise in world's population demands more food requirements. However, than one type biotic and abiotic stress continually impacts agricultural productivity. Drought is major that significantly affects productivity every year plants undergo several morphological, biochemical, physiological modifications, such repressed root shoot growth, reduced photosynthesis transpiration rate, excessive production reactive oxygen species (ROS), osmotic adjustments, modified leaf senescence regulating signaling pathways. Such modifications may permanently damage plants; therefore, mitigation strategies must be developed. The use drought resistant crop cultivars expensive labor-intensive with few advantages. exploiting plant growth promoting rhizobacteria (PGPR) proven alternative numerous direct indirect PGPR confers induced systemic tolerance (IST) mechanisms response to via multiple mechanisms, including alteration architecture, maintenance high relative water content, improvement phytohormones, exopolysaccharides, ACC deaminase, carotenoids volatiles, induction antioxidant defense system, stress-responsive gene expression. commercial application bioinoculants or biostimulants will remain contingent on robust strain selection performance under unfavorable environmental conditions. This review highlights possible by activating adaptive systems for enhancing improving overall yield.

Language: Английский

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Efforts towards overcoming drought stress in crops: Revisiting the mechanisms employed by plant growth-promoting bacteria

Frontiers in Microbiology, Journal Year: 2022, Volume and Issue: 13

Published: July 29, 2022

Globally, agriculture is under a lot of pressure due to rising population and corresponding increases in food demand. However, several variables, including improper mechanization, limited arable land, the presence biotic abiotic pressures, continually impact agricultural productivity. Drought notable destructive stress may be most serious challenge confronting sustainable agriculture, resulting significant crop output deficiency. Numerous morphological physiological changes occur plants as result drought stress. Hence, there need create mitigation techniques since these might permanently harm plant. Current methods used reduce effects include use film farming, super-absorbent hydrogels, nanoparticles, biochar, drought-resistant plant cultivars. activities are money labor-intensive, which offer improvement. The plant-growth-promoting bacteria (PGPB) has proven preferred method that offers indirect direct advantages mitigation. PGPB critical biological elements have favorable impacts on plants’ biochemical features, leading improved sugar production, relative water content, leaf number, ascorbic acid levels, photosynthetic pigment quantities. This present review revisited ameliorating detrimental plants, explored mechanism action employed, well major challenges encountered their application for growth development.

Language: Английский

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Plant Growth-Promoting Rhizobacteria Eliminate the Effect of Drought Stress in Plants: A Review

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

Published: Aug. 11, 2022

Plants evolve diverse mechanisms to eliminate the drastic effect of biotic and abiotic stresses. Drought is most hazardous stress causing huge losses crop yield worldwide. Osmotic decreases relative water chlorophyll content increases accumulation osmolytes, epicuticular wax content, antioxidant enzymatic activities, reactive oxygen species, secondary metabolites, membrane lipid peroxidation, abscisic acid. Plant growth-promoting rhizobacteria (PGPR) drought by altering root morphology, regulating stress-responsive genes, producing phytohormones, siderophores, volatile organic compounds, exopolysaccharides, improving 1-aminocyclopropane-1-carboxylate deaminase activities. The use PGPR an alternative approach traditional breeding biotechnology for enhancing productivity. Hence, that can promote tolerance in important agricultural crops could be used minimize under limited conditions. This review deals with recent progress on harmful effects agriculture crops.

Language: Английский

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Assessment and prediction of index based agricultural drought vulnerability using machine learning algorithms

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 867, P. 161394 - 161394

Published: Jan. 10, 2023

Language: Английский

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Plant Growth-Promoting Rhizobacteria (PGPR): A Rampart against the Adverse Effects of Drought Stress

Water, Journal Year: 2023, Volume and Issue: 15(3), P. 418 - 418

Published: Jan. 19, 2023

Abiotic stress significantly limits plant growth and production. Drought, in particular, is a severe constraint that affects agricultural productivity on global scale. Water induces plants set of morpho-anatomical (modification root leaf structure), physiological, biochemical (relative water content, membrane stability, photosynthesis, hormonal balance, antioxidant systems, osmolyte accumulation) changes mainly employed to cope with the drought stress. These strategies allow overcome unfavorable period limited availability. Currently, promising alternative available improve tolerance under conditions. The use osmotolerant growth-promoting rhizobacteria (PGPR) as inoculants can alleviate by increasing efficiency plant. PGPR drought, through morphology architecture system, production phytohormones, extracellular polysaccharides, ACC 1-(aminocyclopropane-1-carboxylate) deaminase, volatile chemicals, accumulation. They may also enhance defense system induce transcriptional regulation response genes. This review addresses effects growth, adaptation, conditions discusses significant potential modulate physiological against scarcity, ensuring survival improving resistance crops.

Language: Английский

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Waste-derived nanobiochar: A new avenue towards sustainable agriculture, environment, and circular bioeconomy

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 905, P. 166881 - 166881

Published: Sept. 7, 2023

The greatest challenge for the agriculture sector in twenty-first century is to increase agricultural production feed burgeoning global population while maintaining soil health and integrity of agroecosystem. Currently, application biochar widely implemented as an effective means boosting sustainable having a negligible influence on ecosystems environment. In comparison traditional biochar, nano-biochar (nano-BC) boasts enhanced specific surface area, adsorption capacity, mobility properties within soil, allowing it promote properties, crop growth, environmental remediation. Additionally, carbon sequestration reduction methane nitrous oxide emissions from can be achieved with nano-BC applications, contributing climate change mitigation. Nonetheless, due cost-effectiveness, sustainability, friendliness, waste-derived may emerge most viable alternative conventional waste management strategies, circular bioeconomy broader goal achieving Sustainable Development Goals (SDGs). However, it's important note that research still its nascent stages. Potential risks, including toxicity aquatic terrestrial environments, necessitate extensive field investigations. This review delineates potential outlining current advancements, challenges, possibilities realms sustainability standpoint.

Language: Английский

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Recent advances in PGPR-mediated resilience toward interactive effects of drought and salt stress in plants

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

Published: Sept. 27, 2023

The present crisis at hand revolves around the need to enhance plant resilience various environmental stresses, including abiotic and biotic ensure sustainable agriculture mitigate impact of climate change on crop production. One such promising approach is utilization growth-promoting rhizobacteria (PGPR) mediate these stresses. Plants are constantly exposed stress factors, as drought, salinity, pathogens, nutrient deficiencies, which can significantly reduce yield quality. PGPR beneficial microbes that reside in rhizosphere plants have been shown positively influence growth tolerance through mechanisms, solubilization, phytohormone production, induction systemic resistance. review comprehensively examines mechanisms promotes resilience, acquisition, hormonal regulation, defense induction, focusing recent research findings. advancements made field PGPR-mediated multi-omics approaches ( viz. , genomics, transcriptomics, proteomics, metabolomics) unravel intricate interactions between discussed their molecular pathways involved tolerance. Besides, also emphasizes importance continued implementation PGPR-based strategies address pressing challenges facing global food security commercialization bio-formulations for agricultural.

Language: Английский

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