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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Biofertilizers in agriculture: An overview on concepts, strategies and effects on soil microorganisms

Advances in agronomy, Journal Year: 2020, Volume and Issue: unknown, P. 31 - 87

Published: Jan. 1, 2020

Language: Английский

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Halo-tolerant plant growth promoting rhizobacteria for improving productivity and remediation of saline soils

Journal of Advanced Research, Journal Year: 2020, Volume and Issue: 26, P. 69 - 82

Published: July 11, 2020

The collective impact of climate change and soil salinity is continuously increasing the degraded lands across globe, bringing agricultural productivity food security under stress. high concentration salts in saline soils impose osmotic, ionic, oxidative water stress plants. Biological solutions can be most reliable sustainable approach to ensure limit use agro-chemicals.Halo-tolerant plant growth promoting rhizobacteria (HT-PGPR) are emerging as efficient biological tools mitigate toxic effects salt concentrations improve plants, simultaneously remediating soils. review explains role HT-PGPR mitigating plants through diverse mechanisms concurrently leading improvement quality.HT-PGPR involved alleviating a number evoking multipronged physiological, biochemical molecular responses. These include changes expression defense-related proteins, exopolysaccharides synthesis, activation antioxidant machinery, accumulation osmolytes, maintaining Na+ kinetics improving levels phytohormones nutrient uptake modification signaling by inoculation conditions elicits induced systemic resistance which further prepares them against microbial-mechanisms structural compositional improvements also important. Development novel bioinoculants for based on concepts presented affected agro-ecosystems them.

Language: Английский

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Deliberate introduction of invisible invaders: A critical appraisal of the impact of microbial inoculants on soil microbial communities

Soil Biology and Biochemistry, Journal Year: 2020, Volume and Issue: 148, P. 107874 - 107874

Published: June 25, 2020

Non-target effects of deliberately released organisms into a new environment are great concern due to their potential impact on the biodiversity and functioning ecosystems. Whereas these studies often focus invasive species macro-organisms, use microbial inoculants is expected have specific particular functions but negligible overall resident communities. Here, we posit that such introductions native communities, which might influence ecosystem processes. Focusing soil used literature search examine inoculation (often release beneficial microorganisms in agricultural systems) Of 108 analyzed, 86% showed modify communities short or long term. In addition, for analyzing consequences longer term, 80% did not observe resilience (return initial state) community following inoculation. Through knowledge gathered from each study, propose synthetic mechanistic framework explaining how may alter We also identify challenges as well future approaches shed more light this unseen reality.

Language: Английский

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Biofertilizers and Biocontrol Agents for Agriculture: How to Identify and Develop New Potent Microbial Strains and Traits

Microorganisms, Journal Year: 2021, Volume and Issue: 9(4), P. 817 - 817

Published: April 13, 2021

Microbiological tools, biofertilizers, and biocontrol agents, which are bacteria fungi capable of providing beneficial outcomes in crop plant growth health, have been developed for several decades. Currently we a selection strains available as products agriculture, predominantly based on plant-growth-promoting rhizobacteria (PGPR), soil, epiphytic, mycorrhizal fungi, each having specific challenges their production use, with the main one being inconsistency field performance. With growing global concern about pollution, greenhouse gas accumulation, increased need plant-based foods, demand biofertilizers agents is expected to grow. What prospects finding solutions existing tools? The inconsistent performance could be overcome by using combinations different types microbial strains, consisting various members full microbiome. However, thorough understanding microbiological tool, communities, mechanisms action must precede product development. In this review, offer brief overview tools consider techniques approaches that can produce information new traits biofertilizer strains. We also discuss innovative ideas how where identify efficient strain family.

Language: Английский

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How soil biota regulate C cycling and soil C pools in diversified crop rotations

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 156, P. 108219 - 108219

Published: March 19, 2021

Agricultural intensification has substantially reduced soil biodiversity as well agroecosystem functions and services. Sustainable agroecosystems that increase crop diversity through rotation may promote above-belowground interactions. Studying ecological networks, communities, abiotic impacts simultaneously increases our understanding of complex C cycling encompassing all components a given system. Higher rotational enhances primary productivity by increasing the photosynthetic intensity crops in relative to systems where is grown continuously. In addition, greater temporal stimulates interactions, which affects carbon allocation, rhizodeposition, growth rhizobiomes. Stronger interactions will intensify connections between microbial faunal networks among roots, rhizosphere, bulk soil. This further strengthens biotic elements (plant inputs food web functioning) factors (soil matrix microenvironments), providing positive feedback loops on organic accrual. review describes how biological drive biodiversity-function relationships. By quantity, quality, chemical inputs, rotations with higher functional foster communities enhance biotic-abiotic formation storage matter.

Language: Английский

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The role of plant-associated rhizobacteria in plant growth, biocontrol and abiotic stress management

Journal of Applied Microbiology, Journal Year: 2022, Volume and Issue: 133(5), P. 2717 - 2741

Published: Aug. 26, 2022

The rhizosphere is the region around plant roots where maximum microbial activities occur. In rhizosphere, microorganisms' beneficial and harmful affect growth development. mutualistic rhizospheric bacteria which improve health are known as growth-promoting rhizobacteria (PGPR). They very important due to their ability help in diverse ways. PGPR such Pseudomonas, Bacillus, Azospirillum, Azotobacter, Arthrobacter, Achromobacter, Micrococcus, Enterobacter, Rhizobium, Agrobacterium, Pantoea Serratia now well known. Rhizomicrobiome plays critical roles nutrient acquisition assimilation, improved soil texture, secreting modulating extracellular molecules hormones, secondary metabolites, antibiotics various signal compounds, all leading enhancement of microbes compounds they secrete constitute valuable biostimulants play pivotal stress responses. this review, we highlight diversity cutting-edge findings focusing on role a We also discussed resisting adverse effects arising from abiotic (drought, salinity, heat, heavy metals) stresses.

Language: Английский

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Combined use of Trichoderma and beneficial bacteria (mainly Bacillus and Pseudomonas): Development of microbial synergistic bio-inoculants in sustainable agriculture

Biological Control, Journal Year: 2022, Volume and Issue: 176, P. 105100 - 105100

Published: Nov. 7, 2022

Trichoderma-bacteria co-inoculations have a synergistic effect on plant benefits.• biocontrollers similar results than chemical pesticides.• Compatibility and formulation are key steps in co-inoculants.

Language: Английский

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Role of microbial inoculants as bio fertilizers for improving crop productivity: A review

Heliyon, Journal Year: 2023, Volume and Issue: 9(6), P. e16134 - e16134

Published: May 17, 2023

The world's population is increasing and anticipated to spread 10 billion by 2050, the issue of food security becoming a global concern. To maintain security, it essential increase crop productivity under changing climatic conditions. Conventional agricultural practices frequently use artificial/chemical fertilizers enhance productivity, but these have numerous negative effects on environment people's health. address issues, researchers been concentrating substitute fertilization methods for many years, biofertilizers as crucial part are quickly gaining popularity all over globe. Biofertilizers living formulations made indigenous plant growth-promoting rhizobacteria (PGPR) which substantial, environment-friendly, economical amassing enhancing development either directly or indirectly, renewable source nutrients sustainable agronomy. review aims provide comprehensive overview current knowledge microbial inoculants biofertilizers, including their types, mechanisms action, challenges, limitations associated with inoculants. In this review, we focused application fields in growth performing several activities like nitrogen fixation, siderophore production, phytohormone nutrient solubilization, facilitating easy uptake plants. Further, discussed indirect mechanism PGPRs, developing induced system resistance against pest diseases, biocontrol agent phytopathogens. This article presents brief outline ideas uses improving well discussion challenges

Language: Английский

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Serratia spp. as plant growth-promoting bacteria alleviating salinity, drought, and nutrient imbalance stresses

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: March 18, 2024

In agricultural environments, plants are often exposed to abiotic stresses including temperature extremes, salt stress, drought, and heavy metal soil contamination, which leads significant economic losses worldwide. Especially stress drought pose serious challenges since they induce ionic toxicity, osmotic oxidative in plants. A potential solution can be the application of bacteria Serratia spp. known promote plant growth under normal conditions Thus mini-review aims summarize current knowledge on promotion by (under salinity nutrient deficit) highlight areas for development field. So far, it has been proven that strains exhibit a variety traits contributing enhanced tolerance, such as phytohormone production, ACC deaminase activity, nitrogen fixation, P Zn solubilization, antioxidant properties improvement, modulation gene expression. Nevertheless, further research is needed, especially two subjects: elucidating its mechanisms action at molecular level effects indigenous microbiota and, particularly, rhizosphere. both cases, advisable use omics techniques gain in-depth insights into issues. Additionally, some may phytopathogens, therefore studies rule out this possibility recommended prior field trials. It believed improving said stimulate will increase from genus serve an eco-friendly biofertilizer sustainable agriculture more often.

Language: Английский

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