Biofertilizers: An ecofriendly technology for nutrient recycling and environmental sustainability

Current Research in Microbial Sciences, Journal Year: 2021, Volume and Issue: 3, P. 100094 - 100094

Published: Dec. 20, 2021

Modern intensive agricultural practices face numerous challenges that pose major threats to global food security. In order address the nutritional requirements of ever-increasing world population, chemical fertilizers and pesticides are applied on large scale increase crop production. However, injudicious use agrochemicals has resulted in environmental pollution leading public health hazards. Moreover, agriculture soils continuously losing their quality physical properties as well (imbalance nutrients) biological health. Plant-associated microbes with plant growth- promoting traits have enormous potential solve these play a crucial role enhancing biomass yield. The beneficial mechanisms growth improvement include enhanced nutrient availability, phytohormone modulation, biocontrol phytopathogens amelioration biotic abiotic stresses. Solid-based or liquid bioinoculant formulation comprises inoculum preparation, addition cell protectants such glycerol, lactose, starch, good carrier material, proper packaging best delivery methods. Recent developments entrapment/microencapsulation, nano-immobilization microbial bioinoculants biofilm-based biofertilizers. This review critically examines current state-of-art strains biofertilizers important roles performed by maintaining soil fertility productivity.

Language: Английский

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PGPR in Agriculture: A Sustainable Approach to Increasing Climate Change Resilience

Frontiers in Sustainable Food Systems, Journal Year: 2021, Volume and Issue: 5

Published: July 6, 2021

Growing environmental concerns are potentially narrowing global yield capacity of agricultural systems. Climate change is the most significant problem world currently facing. To meet food demand, production must be doubled by 2050; over exploitation arable lands using unsustainable techniques might resolve demand issues, but they have negative effects. Current crop systems a major reason for changing climate through diminishing biodiversity, physical and chemical soil degradation, water pollution. The application fertilizers pesticides contribute to greenhouse gas emissions (GHG) toxic depositions. At this crucial time, there pressing need transition more sustainable practices, ones that concentrate on promoting mechanisms, which enable crops grow well in resource limited environmentally challenging environments, also develop with greater use efficiency optimum yields across wider array conditions. phytomicrobiome considered as one best strategies; better alternative agriculture, viable solution twin challenges security stability. Use phytomicrobiome, due its friendly mechanisms plant growth promotion, becoming widespread industry. Therefore, review, we emphasize contribution beneficial members, particularly rhizobacteria (PGPR), strategy improvement face change. Also, roles dwelling microbes stress amelioration, nutrient supply (nitrogen fixation, phosphorus solubilization), phytohormone along factors could affect their been discussed extensively. Lastly, limitations expansion biobased techniques, instance, perspective producers, indigenous microbial competition regulatory approval discussed. This review largely focusses importance approaches such biobased/PGPR-based our systems, especially context current conditions, almost certain worsen near future.

Language: Английский

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Bacterial Plant Biostimulants: A Sustainable Way towards Improving Growth, Productivity, and Health of Crops

Sustainability, Journal Year: 2021, Volume and Issue: 13(5), P. 2856 - 2856

Published: March 6, 2021

This review presents a comprehensive and systematic study of the field bacterial plant biostimulants considers fundamental innovative principles underlying this technology. Plant are an important tool for modern agriculture as part integrated crop management (ICM) system, helping make more sustainable resilient. contain substance(s) and/or microorganisms whose function when applied to plants or rhizosphere is stimulate natural processes enhance nutrient uptake, use efficiency, tolerance abiotic stress, biocontrol, quality. The has gained substantial significant heed worldwide environmentally friendly alternative agricultural production. At present, there increasing curiosity in industry researchers about microbial biostimulants, especially (BPBs), improve growth productivity. BPBs that based on PGPR (plant growth-promoting rhizobacteria) play plausible roles promote/stimulate through several mechanisms include (i) acquisition by nitrogen (N2) fixation solubilization insoluble minerals (P, K, Zn), organic acids siderophores; (ii) antimicrobial metabolites various lytic enzymes; (iii) action regulators stress-responsive/induced phytohormones; (iv) ameliorating stress such drought, high soil salinity, extreme temperatures, oxidative heavy metals using different modes action; (v) defense induction modes. Presented here brief emphasizing applicability exertion fulfill current food crisis.

Language: Английский

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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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Plant Growth-Promoting Rhizobacteria as a Green Alternative for Sustainable Agriculture

Sustainability, Journal Year: 2021, Volume and Issue: 13(19), P. 10986 - 10986

Published: Oct. 3, 2021

Environmental stress is a major challenge for sustainable food production as it reduces yield by generating reactive oxygen species (ROS) which pose threat to cell organelles and biomolecules such proteins, DNA, enzymes, others, leading apoptosis. Plant growth-promoting rhizobacteria (PGPR) offers an eco-friendly green alternative synthetic agrochemicals conventional agricultural practices in accomplishing agriculture boosting growth tolerance plants. PGPR inhabit the rhizosphere of soil exhibit positive interaction with plant roots. These organisms render multifaceted benefits plants several mechanisms release phytohormones, nitrogen fixation, solubilization mineral phosphates, siderophore iron sequestration, protection against various pathogens, stress. has potential curb adverse effects stresses salinity, drought, heavy metals, floods, other on inducing antioxidant enzymes catalase, peroxidase, superoxide dismutase. Genetically engineered strains play significant roles alleviate abiotic improve crop productivity. Thus, present review will focus impact resistance, promotion, induction systems

Language: Английский

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Biofertilizers: A Nexus between soil fertility and crop productivity under abiotic stress

Current Research in Environmental Sustainability, Journal Year: 2021, Volume and Issue: 3, P. 100063 - 100063

Published: Jan. 1, 2021

High food demand for the world's teeming population necessitates intensification of crop production in modern agriculture, which requires extensive use synthetic fertilizers higher yield. The excessive chemical fertilizers, despite high nutrients contents and ability to grow crops faster, discovered be dangerous health environment besides polluting groundwater atmosphere future. alternative these, biofertilizers arose today due their attributes towards eco-friendly, cost-effective, easy apply agricultural field. Biofertilizers are a batch diverse microorganisms, can induce plant growth-promotion activities along with soil health, even under abiotic stress conditions. maybe growth-promoting rhizobacteria, arbuscular mycorrhizal fungi, as well consortia other beneficial microbes. sustain growth performance, challenging environment. performance perfect-candidate-biofertilizer field depends on type, properties inoculants, technical background, environmental condition. can, directly or indirectly, help attaining security compared harmful effect fertilizers. A direct mechanism refers phyto-stimulation nutrient mobility, while an indirect poses bio-control activity. Direct mechanisms involve phytohormone phosphate, potassium, zinc, etc. solubilization. While, indirect-mechanism is HCN production, siderophore antibiotic present review elucidates diversity microbial inoculants (biofertilizers), impacts through rising fertility, overall In line related literature worked out by different researchers.

Language: Английский

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Production, Purification, and Characterization of Bacillibactin Siderophore of Bacillus subtilis and Its Application for Improvement in Plant Growth and Oil Content in Sesame

Sustainability, Journal Year: 2021, Volume and Issue: 13(10), P. 5394 - 5394

Published: May 12, 2021

Siderophores are low molecular weight secondary metabolites produced by microorganisms under iron stress as a specific chelator. In the present study, rhizospheric bacterium was isolated from rhizosphere of sesame plants Salem district, Tamil Nadu, India and later identified Bacillus subtilis LSBS2. It exhibited multiple plant-growth-promoting (PGP) traits such hydrogen cyanide (HCN), ammonia, indole acetic acid (IAA), solubilized phosphate. The chrome azurol sulphonate (CAS) agar plate assay used to screen siderophore production LSBS2 quantitatively isolate 296 mg/L siderophores in succinic medium. Further characterization revealed that catecholate bacillibactin. A pot culture experiment explore effect its promoting absorption plant growth Sesamum indicum L. Data study multifarious sp. could be exploited potential bioinoculant for yield improvement S. indicum.

Language: Английский

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Hydrogen cyanide production by soil bacteria: Biological control of pests and promotion of plant growth in sustainable agriculture

Pedosphere, Journal Year: 2021, Volume and Issue: 32(1), P. 15 - 38

Published: Dec. 8, 2021

Language: Английский

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Bacterial Exopolysaccharides: Insight into Their Role in Plant Abiotic Stress Tolerance

Journal of Microbiology and Biotechnology, Journal Year: 2021, Volume and Issue: 31(8), P. 1045 - 1059

Published: July 5, 2021

Language: Английский

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Management of Phosphorus in Salinity-Stressed Agriculture for Sustainable Crop Production by Salt-Tolerant Phosphate-Solubilizing Bacteria—A Review

Agronomy, Journal Year: 2021, Volume and Issue: 11(8), P. 1552 - 1552

Published: Aug. 3, 2021

Among the environmental factors, soil salinity is one of most detrimental factors affecting plant growth and productivity. Nutritional-imbalance also known as negative effects on essential nutrients, phosphorus (P) a nutrient in which uptake, transport, distribution adversely affected by salinity-stress. Salinity-stress-mediated low P availability limits crop production. Adding additional fertilizer generally recommended to manage deficit saline-soils; however, low-efficiency available use salt-affected soils, restricts availability, fertilizers are cause significant concerns. The application salinity-tolerant phosphate–solubilizing-bacteria (ST-PSB) can be greatly effective economical way improve recover P-deficit saline-land. This review focuses salinization its effect mechanisms solubilization ST-PSB, ST-PSB diversity, their role alleviating stress plants, current future scenarios use, potential this knowledge sustainable system. According review, adding saline soils could an alternative for plants may ameliorate tolerance.

Language: Английский

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