Harnessing the plant microbiome to promote the growth of agricultural crops

Microbiological Research, Journal Year: 2021, Volume and Issue: 245, P. 126690 - 126690

Published: Jan. 8, 2021

The rhizosphere microbiome is composed of diverse microbial organisms, including archaea, viruses, fungi, bacteria as well eukaryotic microorganisms, which occupy a narrow region soil directly associated with plant roots. interactions between these microorganisms and the can be commensal, beneficial or pathogenic. These also interact each other, either competitively synergistically. Promoting growth by harnessing holds tremendous potential for providing an environmentally friendly solution to increasing food demands world's rapidly growing population, while helping alleviate environmental societal issues large-scale production. There recently have been many studies on disease suppression promoting abilities microbiome; however, findings largely not translated into field. Therefore, additional research dynamic crop plants, environment are necessary better guide increase yield quality. This review explores biotic abiotic that occur within plant's current agricultural practices, how factors, human impact microbiome. Additionally, some limitations, safety considerations, future directions study discussed.

Language: Английский

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Plant growth promoting bacteria for combating salinity stress in plants – Recent developments and prospects: A review

Microbiological Research, Journal Year: 2021, Volume and Issue: 252, P. 126861 - 126861

Published: Sept. 8, 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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Halotolerant Rhizobacteria for Salinity-Stress Mitigation: Diversity, Mechanisms and Molecular Approaches

Sustainability, Journal Year: 2022, Volume and Issue: 14(1), P. 490 - 490

Published: Jan. 3, 2022

Agriculture is the best foundation for human livelihoods, and, in this respect, crop production has been forced to adopt sustainable farming practices. However, soil salinity severely affects growth, degradation of quality, and fertility many countries world. This results loss profitability, growth agricultural yields, step-by-step decline nutrient content. Thus, researchers have focused on searching halotolerant plant growth-promoting bacteria (PGPB) increase productivity. The beneficial are frequently connected with rhizosphere can alleviate under stress through direct or indirect mechanisms. In context, PGPB attained a unique position. responses include an increased rate photosynthesis, high antioxidants, osmolyte accumulation, decreased Na+ ions, maintenance water balance, germination rate, well-developed root shoot elongation salt-stress conditions. Therefore, use as bioformulations emerging research avenue last few years, applications biopesticides biofertilizers being considered alternative tools agriculture, they ecofriendly minimize all kinds stresses. Halotolerant possess greater potential salinity-affected bioinoculants bioremediation salt-affected soil.

Language: Английский

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Plant growth-promoting rhizobacteria: Salt stress alleviators to improve crop productivity for sustainable agriculture development

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 13

Published: Jan. 12, 2023

Soil salinity, a growing issue worldwide, is detrimental consequence of the ever-changing climate, which has highlighted and worsened conditions associated with damaged soil quality, reduced agricultural production, decreasing land areas, thus resulting in an unsteady national economy. In this review, halo-tolerant plant growth-promoting rhizo-microbiomes (PGPRs) are evaluated salinity-affected agriculture as they serve excellent agents controlling various biotic–abiotic stresses help augmentation crop productivity. Integrated efforts these effective microbes lighten load agro-chemicals on environment while managing nutrient availability. PGPR-assisted modern practices have emerged green strategy to benefit sustainable farming without compromising yield under salinity well supplementary including increased temperature, drought, potential invasive pathogenicity. PGPRs bio-inoculants impart induced systemic tolerance (IST) plants by production volatile organic compounds (VOCs), antioxidants, osmolytes, extracellular polymeric substances (EPS), phytohormones, ACC-deaminase recuperation nutritional status ionic homeostasis. Regulation PGPR-induced signaling pathways such MAPK CDPK assists stress alleviation. The “Next Gen Agriculture” consists application designer microbiomes through gene editing tools, for instance, CRISPR, engineering metabolic so gain maximum resistance. utilization omics technologies over traditional approaches can fulfill criteria required increase yields manner feeding burgeoning population augment adaptability climate change conditions, ultimately leading improved vitality. Furthermore, constraints specificity PGPR, lack acceptance farmers, legal regulatory aspects been acknowledged also discussing future trends product commercialization view changing climate.

Language: Английский

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Biopriming of seed with plant growth-promoting bacteria for improved germination and seedling growth

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

Published: Feb. 28, 2023

Several seed priming methods can be used to improve germination, seedling vigor, and overcome abiotic stress. In addition these benefits, only the biopriming method provides additional benefit of biotic stress management, earning it special attention. Seed is useful in almost all crops around world an environmentally friendly alternative chemical fungicides. Biopriming usually refers use beneficial microorganisms, particular plant growth-promoting bacteria (PGPB) able survive under various harsh environmental conditions. this study, bacterial strains were isolated from samples different origins, i.e., rhizospheric soil, desert sand, sea mud. Preliminary screening 156 isolates was conducted on basis their potassium (K), phosphorus (P) solubilization ability, production growth hormone, indole acetic acid (IAA). The most efficient identified by 16S rRNA gene nucleotide sequences further examined for ACC deaminase activity, ammonia production, biocontrol activity (defined via chitinolytic HCN, siderophores production). Finally, carrot germination assay with 10 shortlisted potent isolates. 68.6, 58.3, 66.7% tested capable P, K, Zn solubilization, respectively. Klebsiella aerogenes AF3II1 showed highest P K while isolate AF4II5, AF7II3, PC3 IAA synthesis ability. Serratia plymuthica EDC15 Pseudomonas putida AF1I1 strongest siderophore Seven demonstrated strong HCN Five improved germination. Only selected properties results study demonstrate that mainly auxins are involved Furthermore, data suggest phosphate ability may play role

Language: Английский

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Phosphate-solubilizing bacteria: Their agroecological function and optimistic application for enhancing agro-productivity

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 901, P. 166468 - 166468

Published: Aug. 23, 2023

Language: Английский

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Halotolerant plant growth-promoting rhizobacteria improve soil fertility and plant salinity tolerance for sustainable agriculture—A review

Plant Stress, Journal Year: 2024, Volume and Issue: 12, P. 100482 - 100482

Published: May 14, 2024

Due to climate change, expansion of salt-affected arable lands has emerged as a major threat global food security and agricultural sustainability. Conventional crop breeding programs have proven insufficient for mitigating the risks salt stress in soil productivity. Research on improving health tolerance boost yield performance under by plant-associated microbiomes gained considerable attention over past few decades. In addition rehabilitation salt-degraded soils, halotolerant plant growth-promoting rhizobacteria (HT-PGPR) are effective stimulating growth, nutritional values yields, increasing tolerance/resistance abiotic/biotic conditions plants. To alleviate salinity stress, HT-PGPR employ wide range mechanisms, including production secondary metabolites siderophores, synthesis phytohormones enzymes, maintenance ion homeostasis, nutrient availability Because our goal is continuously improve understanding their impact agriculture, current review addresses challenges associated with salinity, updates scientific community solutions (e.g., HT-PGPR) sustainable agriculture farming practices.

Language: Английский

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Secondary Metabolites From Halotolerant Plant Growth Promoting Rhizobacteria for Ameliorating Salinity Stress in Plants

Frontiers in Microbiology, Journal Year: 2020, Volume and Issue: 11

Published: Oct. 22, 2020

Soil salinization has emerged as one of the prime environmental constraints endangering soil quality and agricultural productivity. Anthropogenic activities coupled with rapid pace climate change are key drivers salinity resulting in degradation lands. Increasing levels salt not only impair structure its microbial biomass but also restrict plant growth by causing imbalances metabolic disorders. Potential secondary metabolites synthesized halotolerant promoting rhizobacteria (HT-PGPR) management stress crops is gaining importance. A wide array such osmoprotectants/compatible solutes, exopolysaccharides (EPS) volatile organic compounds (VOCs) from HT-PGPR have been reported to play crucial roles ameliorating them their symbiotic partners. In addition, help prompt buffering act biological engineers enhancing productivity saline soils. The review documents prominent role modulating genetic responses stress. highlights mechanisms involved production conditions. Utilizing for development novel bioinoculants agro-ecosystems can be an important strategy future.

Language: Английский

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Plant Growth-Promoting Bacteria as an Emerging Tool to Manage Bacterial Rice Pathogens

Microorganisms, Journal Year: 2021, Volume and Issue: 9(4), P. 682 - 682

Published: March 26, 2021

As a major food crop, rice (Oryza sativa) is produced and consumed by nearly 90% of the population in Asia with less than 9% outside Asia. Hence, reports on large scale grain losses were alarming resulted heightened awareness importance plants’ health increased interest against phytopathogens rice. To serve this interest, review will provide summary bacterial pathogens, which can potentially be controlled plant growth-promoting bacteria (PGPB). Additionally, highlights PGPB-mediated functional traits, including biocontrol pathogens enhancement plant’s growth. Currently, plethora recent studies address use PGPB to combat an attempt replace existing methods chemical fertilizers pesticides that often lead environmental pollutions. tool presented itself as promising alternative improving simultaneously controlling vitro field/greenhouse studies. PGPB, such Bacillus, Pseudomonas, Enterobacter, Streptomyces, are now very well-known. Applications bioformulations found effective productivity eco-friendly agroecosystems.

Language: Английский

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