Compositional shifts in root-associated bacterial and archaeal microbiota track the plant life cycle in field-grown rice

PLoS Biology, Journal Year: 2018, Volume and Issue: 16(2), P. e2003862 - e2003862

Published: Feb. 23, 2018

Bacterial communities associated with roots impact the health and nutrition of host plant. The dynamics these microbial assemblies over plant life cycle are, however, not well understood. Here, we use dense temporal sampling 1,510 samples from root spatial compartments to characterize bacterial archaeal components root-associated microbiota field grown rice (Oryza sativa) course 3 consecutive growing seasons, as 2 sites in diverse geographic regions. was found be highly dynamic during vegetative phase growth then stabilized compositionally for remainder cycle. taxa conserved between were defined predictive features age by modeling using a random forest approach. age-prediction models revealed that drought-stressed plants have developmentally immature compared unstressed plants. Further, genotypes varying developmental rates, show shifts microbiome are correlated rates transitions rather than alone, such different compositions reflect juvenile adult stages. These results suggest model successional

Language: Английский

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Pattern recognition receptors and signaling in plant–microbe interactions

The Plant Journal, Journal Year: 2017, Volume and Issue: 93(4), P. 592 - 613

Published: Dec. 20, 2017

Summary Plants solely rely on innate immunity of each individual cell to deal with a diversity microbes in the environment. Extracellular recognition microbe‐ and host damage‐associated molecular patterns leads first layer inducible defenses, termed pattern‐triggered ( PTI ). In plants, pattern receptors PRR s) described date are all membrane‐associated receptor‐like kinases or proteins, reflecting prevalence apoplastic colonization plant‐infecting microbes. An increasing inventory elicitor‐active s indicates that large number them limited certain range plant groups/species, pointing dynamic convergent evolution specificities. addition common principles signaling, recent studies have revealed substantial diversification between their functions regulatory mechanisms. This serves confer robustness plasticity whole system natural infections, wherein different simultaneously engaged faced microbial assaults. We review functional significance basis ‐mediated pathogen disease resistance, also an emerging role for homeostatic association beneficial commensal

Language: Английский

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Systems Biology of Plant-Microbiome Interactions

Molecular Plant, Journal Year: 2019, Volume and Issue: 12(6), P. 804 - 821

Published: May 23, 2019

In natural environments, plants are exposed to diverse microbiota that they interact with in complex ways. While plant–pathogen interactions have been intensely studied understand defense mechanisms plants, many microbes and microbial communities can substantial beneficial effects on their plant host. Such include improved acquisition of nutrients, accelerated growth, resilience against pathogens, resistance abiotic stress conditions such as heat, drought, salinity. However, the bacterial strains or consortia host often cultivar species specific, posing an obstacle general application. Remarkably, signals trigger immune responses molecularly highly similar identical pathogenic microbes. Thus, it is unclear what determines outcome a particular microbe–host interaction which factors enable distinguish beneficials from pathogens. To unravel network genetic, microbial, metabolic interactions, including signaling events mediating comprehensive quantitative systems biology approaches will be needed.

Language: Английский

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Transmission of Bacterial Endophytes

Microorganisms, Journal Year: 2017, Volume and Issue: 5(4), P. 70 - 70

Published: Nov. 10, 2017

Plants are hosts to complex communities of endophytic bacteria that colonize the interior both below- and aboveground tissues. Bacteria living inside plant tissues as endophytes can be horizontally acquired from environment with each new generation, or vertically transmitted generation via seed. A better understanding bacterial endophyte transmission routes modes will benefit studies plant–endophyte interactions in agricultural natural ecosystems. In this review, we provide an overview take plants, including seeds pollen, soil, atmosphere, insects. We discuss well-documented understudied routes, identify gaps our knowledge on how reach plants. Where little is available endophytes, draw pathogens potential routes. Colonization roots soil best studied route, probably most important, although more aerial parts stomatal colonization needed, conclusively confirm vertical transfer. While transfer likely occurs, obligate strictly transferred symbioses unusual Instead, plants appear ability respond a changing by acquiring its microbiome anew over lifetime individuals.

Language: Английский

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A plant’s diet, surviving in a variable nutrient environment

Science, Journal Year: 2020, Volume and Issue: 368(6486)

Published: April 2, 2020

As primary producers, plants rely on a large aboveground surface area to collect carbon dioxide and sunlight underground the water mineral nutrients needed support their growth development. Accessibility of essential nitrogen (N) phosphorus (P) in soil is affected by many factors that create variable spatiotemporal landscape availability both at local global scale. Plants optimize uptake N P available through modifications development engagement with microorganisms facilitate capture. The sensing these nutrients, as well perception overall nutrient status, shapes plant's response its environment, coordinating microbial capture regulate plant growth.

Language: Английский

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