Microbes to support plant health: understanding bioinoculant success in complex conditions

Current Opinion in Microbiology, Journal Year: 2023, Volume and Issue: 73, P. 102286 - 102286

Published: March 4, 2023

A promising, sustainable way to enhance plant health and productivity is by leveraging beneficial microbes. Beneficial microbes are natural soil residents with proven benefits for performance health. When applied in agriculture improve crop yield performance, these commonly referred as bioinoculants. Yet, despite their promising properties, bioinoculant efficacy can vary dramatically the field, hampering applicability. Invasion of rhizosphere microbiome a critical determinant success. complex phenomenon that shaped interactions local, resident host plant. Here, we explore all dimensions cross-cutting ecological theory molecular biology microbial invasion rhizosphere. We refer famous Chinese philosopher strategist Sun Tzu, who believed solutions problems require deep understanding themselves, review major biotic factors determining effectiveness.

Language: Английский

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Deep discovery informs difficult deployment in plant microbiome science

Cell, Journal Year: 2023, Volume and Issue: 186(21), P. 4496 - 4513

Published: Oct. 1, 2023

Plant-associated microbiota can extend plant immune system function, improve nutrient acquisition and availability, alleviate abiotic stresses. Thus, naturally beneficial microbial therapeutics are enticing tools to productivity. The basic definition of across species ecosystems, combined with the development reductionist experimental models manipulation phenotypes microbes, has fueled interest in its translation agriculture. However, great majority microbes exhibiting plant-productivity traits lab greenhouse fail field. Therapeutic must reach détente, establishment uneasy homeostasis, system, invade heterogeneous pre-established plant-associated communities, persist a new potentially remodeled community. Environmental conditions alter community structure thus impact engraftment therapeutic microbes. We survey recent breakthroughs, challenges, opportunities translating from

Language: Английский

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Choreographing root architecture and rhizosphere interactions through synthetic biology

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 14, 2024

Abstract Climate change is driving extreme changes to the environment, posing substantial threats global food security and bioenergy. Given direct role of plant roots in mediating plant-environment interactions, engineering form function root systems their associated microbiota may mitigate these effects. Synthetic genetic circuits have enabled sophisticated control gene expression microbial for years a surge advances has heralded extension this approach multicellular species. Targeting tools affect structure, exudation, microbe activity on surfaces provide multiple strategies advancement climate-ready crops.

Language: Английский

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Application of polysaccharides for the encapsulation of beneficial microorganisms for agricultural purposes: A review

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 244, P. 125366 - 125366

Published: June 15, 2023

Intensive farming practices have increased the consumption of chemical-based pesticides and fertilizers thereby creating health issues for humans animals also causing a deterioration in natural ecosystem. The promotion biomaterials synthesis could potentially lead to replacement synthetic products improve soil fertility, protect plants from pathogen attacks, enhance productivity agricultural sector resulting less environmental pollution. Microbial bioengineering involving use improvement encapsulation using polysaccharides has required potential address promote green chemistry. This article describes various techniques which an immense applicable capability encapsulate microbial cells. review elucidates factors that may result reduced viable cell count during encapsulation, particularly spray drying method, where high temperature is dry suspension, this damage advantage application as carriers beneficial microorganisms, do not pose risk due their full biodegradability, was shown. encapsulated cells assist addressing certain problems such ameliorating unfavourable effects plant pests pathogens, promoting sustainability.

Language: Английский

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Rhizoviticin is an alphaproteobacterial tailocin that mediates biocontrol of grapevine crown gall disease

The ISME Journal, Journal Year: 2024, Volume and Issue: 18(1)

Published: Jan. 1, 2024

Abstract Tailocins are headless phage tail structures that mediate interbacterial antagonism. Although the prototypical tailocins, R- and F-pyocins, in Pseudomonas aeruginosa, other predominantly R-type tailocins have been studied, their presence Alphaproteobacteria remains unexplored. Here, we report first alphaproteobacterial F-type tailocin, named rhizoviticin, as a determinant of biocontrol activity Allorhizobium vitis VAR03-1 against crown gall. Rhizoviticin is encoded by chimeric prophage genome, one providing transcriptional regulators contributing to formation cell lysis, but lacking head genes. The rhizoviticin genome retains nearly intact early region containing an integrase remnant replication-related genes critical for downstream gene transcription, suggesting ongoing transition this locus from tailocin-coding region. responsible most antagonistic culture supernatant pathogenic A. strain, deficiency resulted significant reduction antitumorigenic planta. We identified rhizoviticin-coding eight additional strains diverse geographical locations, highlighting unique survival strategy certain Rhizobiales bacteria rhizosphere. These findings advance our understanding evolutionary dynamics provide scientific foundation employing rhizoviticin-producing plant disease control.

Language: Английский

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Secretory molecules from secretion systems fine-tune the host-beneficial bacteria (PGPRs) interaction

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

Published: Feb. 26, 2024

Numerous bacterial species associate with plants through commensal, mutualistic, or parasitic association, affecting host physiology and health. The mechanism for such association is intricate involves the secretion of multiple biochemical substances dedicated protein systems called SS. Eleven SS pathways deliver factors enzymes in their immediate environment cells, as well competing microbial cells a contact-dependent independent fashion. These are instrumental competition, initiation infection, colonization, establishment (positive negative) organisms. role infection pathogenesis has been demonstrated several phytopathogens, including Agrobacterium, Xanthomonas, Ralstonia, Pseudomonas . Since there overlap mechanisms establishing plants, studies have investigated SSs interaction plant beneficial bacteria, symbiotic rhizobia growth bacteria (PGPB). Therefore, present review updates different required colonization rhizobia, Burkholderia, Pseudomonas, Herbaspirillum , etc., on inside which can lead to long-term association. Most like T3SS, T4SS, T5SS, T6SS antagonistic activity needed prevent microbes, ameliorate biotic stress produce successful colonization. Others chemotaxis, adherence, niche formation, suppression immune response establish mutualistic plants.

Language: Английский

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Unraveling the determinants of antibiotic resistance evolution in farmland under fertilizations

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 474, P. 134802 - 134802

Published: June 3, 2024

Language: Английский

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How plants manage pathogen infection

EMBO Reports, Journal Year: 2023, Volume and Issue: 25(1), P. 31 - 44

Published: Dec. 19, 2023

Abstract To combat microbial pathogens, plants have evolved specific immune responses that can be divided into three essential steps: recognition by receptors, signal transduction within plant cells, and execution directly suppressing pathogens. During the past decades, many receptors signaling components their mode of action been revealed, markedly advancing our understanding first two steps. Activation results in physical chemical actions actually stop pathogen infection. Nevertheless, this third step immunity is under explored. In addition to plants, recent evidence suggests microbiota, which considered an additional layer system, also plays a critical role direct suppression. review, we summarize current how as well microbiota control growth behavior highlight outstanding questions need answered.

Language: Английский

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Bacterial secretion system functions: evidence of interactions and downstream implications

Microbiology, Journal Year: 2023, Volume and Issue: 169(4)

Published: April 21, 2023

Unprecedented insights into the biology and functions of bacteria have been continue to be gained through studying bacterial secretion systems in isolation. This method, however, results our understanding being primarily based on idea that they operate independently, ignoring subtleties downstream interconnections. Gram-negative are naturally able adapt navigate their frequently varied dynamic surroundings, mostly because covert connections between systems. Therefore, comprehend some linked repercussions for organisms follow this discourse, it is vital mechanistic how intersecretion system rivalry, virulence, survival, among other things. To purpose, paper discusses a few key instances molecular antagonistic interdependent relationships produced functional products.

Language: Английский

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Microbiome-mediated plant disease resistance: recent advances and future directions

Journal of General Plant Pathology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 17, 2024

Abstract Plant pathogens cause plant diseases that significantly decrease crop yields, posing a serious threat to global food security. While disease resistance has traditionally been understood as the trait determined by innate immune system and pathogen virulence system, recent research underscores pivotal role of microbiome in resistance. Plant-associated microbiomes confer protection against through direct inhibition, resource competition, activation responses. Agricultural practices such rotation, intercropping, disease-resistant breeding, biocontrol, organic farming modulate microbiomes, thereby influencing This review synthesizes latest advancements understanding intricate interactions among plants, pathogens, microbiomes. We emphasize need for in-depth mechanistic studies linking agricultural dynamics propose future directions leverage sustainable agriculture.

Language: Английский

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