The root microbiome: Community assembly and its contributions to plant fitness

Journal of Integrative Plant Biology, Journal Year: 2022, Volume and Issue: 64(2), P. 230 - 243

Published: Jan. 14, 2022

The root microbiome refers to the community of microbes living in association with a plant's roots, and includes mutualists, pathogens, commensals. Here we focus on recent advances study commensal which is major research object microbiome-related researches. With rapid development new technologies, plant-commensal interactions can be explored unprecedented breadth depth. Both soil environment host plant drive assembly. bulk seed bank potential commensals, plants use exudates immune responses build healthy microbial communities from available microbes. extends functional system by participating variety processes, including nutrient absorption, growth promotion, resistance biotic abiotic stresses. Plants their microbiomes have evolved adaptation strategies over time. However, there still huge gap our understanding regulatory mechanisms interactions. In this review, summarize assembly effects these development, look at prospects for promoting sustainable agricultural through microbiome.

Language: Английский

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Linking root exudation to belowground economic traits for resource acquisition

New Phytologist, Journal Year: 2021, Volume and Issue: 233(4), P. 1620 - 1635

Published: Nov. 11, 2021

The concept of a root economics space (RES) is increasingly adopted to explore trait variation and belowground resource-acquisition strategies. Much progress has been made on interactions morphology mycorrhizal symbioses. However, exudation, with significant carbon (C) cost (c. 5-21% total photosynthetically fixed C) enhance resource acquisition, remains missing link in this RES. Here, we argue that incorporating exudation into the structure RES key holistic understanding soil nutrient acquisition. We highlight different functional roles exudates phosphorus (P) nitrogen (N) Thereafter, synthesize emerging evidence illustrates how interacts symbioses at level species individual plant contrasting patterns evolved P-impoverished vs N-limited environments. Finally, propose new conceptual framework, integrating three groups traits better capture complexity Such deeper integrated dynamic morphology, will provide valuable insights mechanisms underlying coexistence for sustainable managed systems.

Language: Английский

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Interspecific plant interaction via root exudates structures the disease suppressiveness of rhizosphere microbiomes

Molecular Plant, Journal Year: 2023, Volume and Issue: 16(5), P. 849 - 864

Published: March 20, 2023

Abstract

Terrestrial plants can affect the growth and health of adjacent via interspecific interaction. Here, we studied mechanism by which plant root exudates recruitment rhizosphere microbiome in plants—with implications for protection—using a tomato (Solanum lycopersicum)–potatoonion (Allium cepa var. agrogatum) intercropping system. First, showed that system results disease-suppressive protects against Verticillium wilt disease caused soilborne pathogen Verticillium dahliae. Second, 16S rRNA gene sequencing revealed with potatoonion altered composition promoting colonization specific Bacillus sp. This taxon was isolated shown to inhibit V. dahliae induce systemic resistance plants. Third, belowground segregation experiment found mediated interaction between tomato. Moreover, experiments using split-root from potatoonion, especially taxifolin—a flavonoid compound—stimulate recruit plant-beneficial bacteria, such as Lastly, ultra-high-pressure liquid chromatography–mass spectrometry analysis taxifolin alters exudate chemistry; thus, this compound acts indirectly modulating Our improve fitness changing use signaling chemicals released potatoonion. study novel modulates establishment microbiome, thus opening up new avenues research precision manipulations.

Language: Английский

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Multifaceted roles of flavonoids mediating plant-microbe interactions

Microbiome, Journal Year: 2022, Volume and Issue: 10(1)

Published: Dec. 16, 2022

Plant-microbe interactions dynamically affect plant growth, health, and development. The mechanisms underpinning these associations are-to a large extent-mediated by specialized host-derived secondary metabolites. Flavonoids are one of the most studied classes such metabolites, regulating both development interaction with commensal microbes. Here, we provide comprehensive review multiple roles flavonoids in mediating plant-microbe interactions. First, briefly summarize general aspects flavonoid synthesis, transport, exudation plants. Then, importance influencing overall community assembly plant-root microbiomes. Last, highlight potential knowledge gaps our understanding how determine between plants Collectively, advocate advancing research this area toward innovative strategies to effectively manipulate plant-microbiome composition, case, via production roots. Video Abstract.

Language: Английский

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The rhizosphere microbiome: Plant–microbial interactions for resource acquisition

Journal of Applied Microbiology, Journal Year: 2022, Volume and Issue: 133(5), P. 2864 - 2876

Published: June 27, 2022

While horticulture tools and methods have been extensively developed to improve the management of crops, systems harness rhizosphere microbiome benefit plant crops are still in development. Plants microbes coevolving for several millennia, conferring fitness advantages that expand plant's own genetic potential. These beneficial associations allow plants cope with abiotic stresses such as nutrient deficiency across a wide range soils growing conditions. achieve these benefits by selectively recruiting using root exudates, positively impacting their nutrition, health overall productivity. Advanced knowledge interplay between exudates alteration response status, underlying mechanisms there of, will development technologies increase crop yield. This review summarizes current perspectives on plant-microbial interactions resource acquisition discusses promising advances manipulating microbiomes exudation.

Language: Английский

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Legacies at work: plant–soil–microbiome interactions underpinning agricultural sustainability

Trends in Plant Science, Journal Year: 2022, Volume and Issue: 27(8), P. 781 - 792

Published: June 11, 2022

Language: Английский

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Rhizosphere Microbiome: The Emerging Barrier in Plant-Pathogen Interactions

Frontiers in Microbiology, Journal Year: 2021, Volume and Issue: 12

Published: Oct. 29, 2021

In the ecosystem, microbiome widely exists in soil, animals, and plants. With rapid development of computational biology, sequencing technology omics analysis, important role soil beneficial microbial community is being revealed. this review, we mainly summarized roles rhizosphere microbiome, revealing its complex pervasive nature contributing to largely invisible interaction with The manipulated microorganisms function as an indirect layer plant immune system by acting a barrier pathogen invasion or inducing systemic resistance. Specifically, could change recruit communities through root-type-specific metabolic properties, positively shape their response invasion. Meanwhile, plants microbes exhibit abilities avoid excessive responses for reciprocal symbiosis. Substantial lines evidence show pathogens might utilize secreting proteins/effectors overcome emerging peripheral advantage turn. Overall, are involved plant–pathogen interactions, power potential explored explained aim effectively increase growth productivity.

Language: Английский

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Flavonoid-attracted Aeromonas sp. from the Arabidopsis root microbiome enhances plant dehydration resistance

The ISME Journal, Journal Year: 2022, Volume and Issue: 16(11), P. 2622 - 2632

Published: July 16, 2022

Abstract Flavonoids are stress-inducible metabolites important for plant-microbe interactions. In contrast to their well-known function in initiating rhizobia nodulation legumes, little is known about whether and how flavonoids may contribute plant stress resistance through affecting non-nodulating bacteria. Here we show that broadly the diversity of Arabidopsis root microbiome preferentially attract Aeromonadaceae, which included a cultivable Aeromonas sp. H1 displayed flavonoid-induced chemotaxis with transcriptional enhancement flagellum biogenesis suppression fumarate reduction smooth swims. Strain showed multiple plant-beneficial traits enhanced dehydration resistance, required but not sudden “cry-for-help” upon stress. boosted dehydration-induced H2O2 accumulation guard cells stomatal closure, concomitant synergistic induction jasmonic acid-related regulators resistance. These findings revealed key role flavonoids, underlying mechanism, mediating plant-microbiome interactions including bacteria-enhanced

Language: Английский

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Plant–microbe interactions in the rhizosphere via a circular metabolic economy

The Plant Cell, Journal Year: 2022, Volume and Issue: 34(9), P. 3168 - 3182

Published: June 9, 2022

Chemical exchange often serves as the first step in plant-microbe interactions and exchanges of various signals, nutrients, metabolites continue throughout interaction. Here, we highlight role metabolite metabolic crosstalk microbiome-root-shoot-environment nexus. Roots secret a diverse set metabolites; this assortment root exudates, including secondary such benzoxazinoids, coumarins, flavonoids, indolic compounds, terpenes, shapes rhizosphere microbiome. In turn, microbiome affects plant growth defense. These inter-kingdom chemical are based on circular economy, seemingly wasteless system which members (i.e. consume, reuse, redesign) metabolites. This review also describes recently discovered phenomenon "Systemically Induced Root Exudation Metabolites" governs metabolism by inducing systemic responses that shift profiles exudates. Metabolic is gradients form specific microhabitats for microbial colonization describe developed high-resolution methods to study rhizosphere. Finally, propose an action plan advance economy sustainable solutions cumulative degradation soil health agricultural lands.

Language: Английский

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Microbial enhancement of plant nutrient acquisition

Stress Biology, Journal Year: 2022, Volume and Issue: 2(1)

Published: Jan. 10, 2022

Nutrient availability is a determining factor for crop yield and quality. While fertilization major approach improving plant nutrition, its efficacy can be limited the production application of fertilizers frequently bring problems to environment. A large number soil microbes are capable enhancing nutrient acquisition thereby offer environmentally benign solutions meet requirements nutrition. Herein we provide summations how beneficial enhance macronutrients micronutrients. We also review recent studies on nutrition-dependent plant-microbe interactions, which highlight plant's initiative in establishing or deterring association. By dissecting complex signaling interactions between within root microbiome, greater understanding microbe-enhanced nutrition under specific biotic abiotic stresses will possible.

Language: Английский

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