Plant–microbiome interactions: from community assembly to plant health

Nature Reviews Microbiology, Journal Year: 2020, Volume and Issue: 18(11), P. 607 - 621

Published: Aug. 12, 2020

Language: Английский

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Root exudate metabolites drive plant-soil feedbacks on growth and defense by shaping the rhizosphere microbiota

Nature Communications, Journal Year: 2018, Volume and Issue: 9(1)

Published: July 10, 2018

Abstract By changing soil properties, plants can modify their growth environment. Although the microbiota is known to play a key role in resulting plant-soil feedbacks, proximal mechanisms underlying this phenomenon remain unknown. We found that benzoxazinoids, class of defensive secondary metabolites are released by roots cereals such as wheat and maize, alter root-associated fungal bacterial communities, decrease plant growth, increase jasmonate signaling defenses, suppress herbivore performance next generation. Complementation experiments demonstrate benzoxazinoid breakdown product 6-methoxy-benzoxazolin-2-one (MBOA), which accumulates during conditioning phase, both sufficient necessary trigger observed phenotypic changes. Sterilization, profiling complementation reveal MBOA acts indirectly altering microbiota. Our results mechanism determine composition rhizosphere microbiota, plant-herbivore interactions

Language: Английский

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Assembly and ecological function of the root microbiome across angiosperm plant species

Proceedings of the National Academy of Sciences, Journal Year: 2018, Volume and Issue: 115(6)

Published: Jan. 22, 2018

Across plants and animals, host-associated microbial communities play fundamental roles in host nutrition, development, immunity. The factors that shape host–microbiome interactions are poorly understood, yet essential for understanding the evolution ecology of these symbioses. Plant roots assemble two distinct compartments from surrounding soil: rhizosphere (microbes roots) endosphere within roots). Root-associated microbes were key land underlie ecosystem processes. However, it is largely unknown how plant has shaped root communities, turn, affect ecology, such as ability to mitigate biotic abiotic stressors. Here we show variation among 30 angiosperm species, which have diverged up 140 million years, affects bacterial diversity composition. Greater similarity microbiomes between hosts leads negative effects on performance through soil feedback, with specific taxa potentially affecting competitive species. Drought also shifts composition microbiomes, most notably by increasing relative abundance Actinobacteria. this drought response varies across host-specific changes Streptomyces associated tolerance. Our results emphasize causes their ecological importance

Language: Английский

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MYB72-dependent coumarin exudation shapes root microbiome assembly to promote plant health

Proceedings of the National Academy of Sciences, Journal Year: 2018, Volume and Issue: 115(22)

Published: April 23, 2018

Plant roots nurture a tremendous diversity of microbes via exudation photosynthetically fixed carbon sources. In turn, probiotic members the root microbiome promote plant growth and protect host against pathogens pests. Arabidopsis thaliana-Pseudomonas simiae WCS417 model system root-specific transcription factor MYB72 MYB72-controlled β-glucosidase BGLU42 emerged as important regulators beneficial rhizobacteria-induced systemic resistance (ISR) iron-uptake responses. regulates biosynthesis iron-mobilizing fluorescent phenolic compounds, after which activity is required for their excretion into rhizosphere. Metabolite fingerprinting revealed antimicrobial coumarin scopoletin dominant metabolite that produced in excreted rhizosphere MYB72- BGLU42-dependent manner. Shotgun-metagenome sequencing root-associated microbiota Col-0, myb72, mutant f6'h1 showed selectively impacts assembly microbial community We show inhibits soil-borne fungal Fusarium oxysporum Verticillium dahliae, while growth-promoting ISR-inducing rhizobacteria P. Pseudomonas capeferrum WCS358 are highly tolerant effect scopoletin. Collectively, our results demonstrate role coumarins point to scenario plants join forces trigger MYB72/BGLU42-dependent scopolin production excretion, resulting improved niche establishment partner immunity benefits plant.

Language: Английский

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Plant–Pathogen Warfare under Changing Climate Conditions

Current Biology, Journal Year: 2018, Volume and Issue: 28(10), P. R619 - R634

Published: May 1, 2018

Language: Английский

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Rhizosphere microbiome structure alters to enable wilt resistance in tomato

Nature Biotechnology, Journal Year: 2018, Volume and Issue: 36(11), P. 1100 - 1109

Published: Oct. 8, 2018

Language: Английский

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Pseudomonas syringae: what it takes to be a pathogen

Nature Reviews Microbiology, Journal Year: 2018, Volume and Issue: 16(5), P. 316 - 328

Published: Feb. 26, 2018

Language: Английский

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Climate change impacts on plant pathogens, food security and paths forward

Nature Reviews Microbiology, Journal Year: 2023, Volume and Issue: 21(10), P. 640 - 656

Published: May 2, 2023

Language: Английский

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Bacterial–fungal interactions: ecology, mechanisms and challenges

FEMS Microbiology Reviews, Journal Year: 2018, Volume and Issue: 42(3), P. 335 - 352

Published: Feb. 16, 2018

Fungi and bacteria are found living together in a wide variety of environments. Their interactions significant drivers many ecosystem functions important for the health plants animals. A large number fungal bacterial families engage complex that lead to critical behavioural shifts microorganisms ranging from mutualism antagonism. The importance bacterial-fungal (BFI) environmental science, medicine biotechnology has led emergence dynamic multidisciplinary research field combines highly diverse approaches including molecular biology, genomics, geochemistry, chemical microbial ecology, biophysics ecological modelling. In this review, we discuss recent advances underscore roles BFI across relevant habitats ecosystems. particular focus is placed on understanding within communities regard metaorganism concept. We also discoveries clarify (molecular) mechanisms involved relationships, contribution new technologies decipher generic principles terms physical associations dialogues. Finally, future directions order stimulate synergy area resolve outstanding questions.

Language: Английский

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Modulation of the Root Microbiome by Plant Molecules: The Basis for Targeted Disease Suppression and Plant Growth Promotion

Frontiers in Plant Science, Journal Year: 2020, Volume and Issue: 10

Published: Jan. 24, 2020

Plants host a mesmerizing diversity of microbes inside and around their roots, known as the microbiome. The microbiome is composed mostly fungi, bacteria, oomycetes, archaea that can be either pathogenic or beneficial for plant health fitness. To grow healthy, plants need to surveil soil niches roots detection microbes, in parallel maximize services nutrients uptake growth promotion. employ palette mechanisms modulate including structural modifications, exudation secondary metabolites coordinated action different defence responses. Here, we review current understanding on composition activity root how molecules shape structure root-associated microbial communities. Examples are given interactions occur rhizosphere between soilborne fungi. We also present some well-established examples harnessing highlight fitness by selecting Understanding manipulate aid design next-generation inoculants targeted disease suppression enhanced growth.

Language: Английский

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