Legume rhizodeposition promotes nitrogen fixation by soil microbiota under crop diversification

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

Published: April 4, 2024

Abstract Biological nitrogen fixation by free-living bacteria and rhizobial symbiosis with legumes plays a key role in sustainable crop production. Here, we study how different combinations influence the interaction between peanut plants their rhizosphere microbiota via metabolite deposition functional responses of symbiotic nitrogen-fixing bacteria. Based on long-term (8 year) diversified cropping field experiment, find that co-cultured maize oilseed rape lead to specific changes profiles bacterial functions nodulation. Flavonoids coumarins accumulate due activation phenylpropanoid biosynthesis pathways peanuts. These enhance growth activity isolates, root nodulation Bradyrhizobium isolates. Peanut plant metabolites interact isolates contributing initiate Our findings demonstrate tailored intercropping could be used improve soil availability through microbiome its functions.

Language: Английский

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The Function of Root Exudates in the Root Colonization by Beneficial Soil Rhizobacteria

Biology, Journal Year: 2024, Volume and Issue: 13(2), P. 95 - 95

Published: Feb. 2, 2024

Soil-beneficial microbes in the rhizosphere play important roles improving plant growth and health. Root exudates key plant–microbe interactions rhizobacterial colonization. This review describes factors influencing dynamic between root soil microbiome rhizosphere, including genotype, development, environmental abiotic biotic factors. We also discuss of specific metabolic mechanisms, regulators, signals beneficial bacteria terms colonization ability. highlight latest research progress on regulating Organic acids, amino sugars, sugar alcohols, flavonoids, phenolic compounds, volatiles, other secondary metabolites are discussed detail. Finally, we propose future objectives that will help us better understand role by rhizobacteria promote sustainable development agriculture forestry.

Language: Английский

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Rational management of the plant microbiome for the Second Green Revolution

Plant Communications, Journal Year: 2024, Volume and Issue: 5(4), P. 100812 - 100812

Published: Jan. 11, 2024

The Green Revolution of the mid-20th century transformed agriculture worldwide and has resulted in environmental challenges. A new approach, Second Revolution, seeks to enhance agricultural productivity while minimizing negative impacts. Plant microbiomes play critical roles plant growth stress responses, understanding plant-microbiome interactions is essential for developing sustainable practices that meet food security safety challenges, which are among United Nations Sustainable Development Goals. This review provides a comprehensive exploration key deterministic processes crucial microbiome management strategies, including host effect, facilitator microbe-microbe interactions. hierarchical framework modulation proposed bridge gap between basic research applications. emphasizes three levels modulation: single strain, synthetic community, situ modulation. Overall, rational wide-ranging applications can potentially be core technology Revolution.

Language: Английский

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Plant Holobiont Theory: The Phytomicrobiome Plays a Central Role in Evolution and Success

Microorganisms, Journal Year: 2021, Volume and Issue: 9(4), P. 675 - 675

Published: March 24, 2021

Under natural conditions, plants are always associated with a well-orchestrated community of microbes-the phytomicrobiome. The nature and degree microbial effect on the plant host can be positive, neutral, or negative, depends largely environment. phytomicrobiome is integral for growth function; microbes play key role in nutrient acquisition, biotic abiotic stress management, physiology regulation through microbe-to-plant signals, via production phytohormones. Relationships between members vary intimacy, ranging from casual associations roots rhizosphere community, to endophytes that live cells, endosymbiosis by cell resulting mitochondria chloroplasts. If we consider these organelles also phytomicrobiome, how do distinguish two? accept chloroplasts as both (entrained microbes), influence evolution becomes so profound without microbes, concept "plant" not viable. This paper argues holobiont should take greater precedence sciences when referring its community. inclusivity this accounts ambiguous entrained wide range functions played homeostasis.

Language: Английский

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Metabolic niches in the rhizosphere microbiome: new tools and approaches to analyse metabolic mechanisms of plant–microbe nutrient exchange

Journal of Experimental Botany, Journal Year: 2018, Volume and Issue: 70(4), P. 1087 - 1094

Published: Dec. 18, 2018

Plants nourish rhizospheric microbes via provision of carbon substrates, and the composition microbiome is strongly influenced by metabolic phenomena such as niche differentiation, competitive exclusion, cross-feeding. Despite intensive investigations taxonomic structure in root microbiomes, there relatively little biochemical knowledge niches occupied microbial strains rhizosphere. Here, we review new tools approaches that are boosting our mechanisms shape microbiome. New studies have elucidated pathways mediate colonisation pathogen suppression, synthetic communities emerging a powerful tool to understand microbe–microbe interactions. Knowledge exudate being advanced metabolomics methodologies, which highlighted specific components can inhibit growth, certain metabolites recruit mutualistic according substrate uptake preferences. Microbial genomics rapidly advancing, with large collections isolated rhizosphere mutant libraries giving insights into colonisation. Exometabolomics methodology for directly observing metabolites, also profiling Integrative using these resources should enable rapid advances, particularly when applied standardised experimental set-ups model communities.

Language: Английский

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