Plant flavones enrich rhizosphere Oxalobacteraceae to improve maize performance under nitrogen deprivation

Nature Plants, Год журнала: 2021, Номер 7(4), С. 481 - 499

Опубликована: Апрель 8, 2021

Язык: Английский

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Developing climate‐resilient crops: improving plant tolerance to stress combination

The Plant Journal, Год журнала: 2021, Номер 109(2), С. 373 - 389

Опубликована: Сен. 5, 2021

SUMMARY Global warming and climate change are driving an alarming increase in the frequency intensity of different abiotic stresses, such as droughts, heat waves, cold snaps, flooding, negatively affecting crop yields causing food shortages. Climate is also altering composition behavior insect pathogen populations adding to yield losses worldwide. Additional constraints agriculture caused by increasing amounts human‐generated pollutants, well negative impact on soil microbiomes. Although laboratory, we trained study individual stress conditions plants, field many pests could simultaneously or sequentially affect combination. Because expected combination events (e.g., waves combined with drought, other and/or pathogens), a concentrated effort needed how crops. This need particularly critical, studies have shown that response plants unique cannot be predicted from simply studying each stresses part Strategies enhance tolerance particular may therefore fail this specific stress, when factors. Here review recent combinations propose new approaches avenues for development combination‐ change‐resilient

Язык: Английский

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Plant-derived coumarins shape the composition of an Arabidopsis synthetic root microbiome

Proceedings of the National Academy of Sciences, Год журнала: 2019, Номер 116(25), С. 12558 - 12565

Опубликована: Май 31, 2019

Significance The root microbiome composition is largely determined by the soil inoculum, with a distinct contribution from host. molecular mechanisms which host influences its rhizobiome are only beginning to be discovered. Using hydroponics-based synthetic community approach, we probe how root-exuded specialized metabolites sculpt microbiome. We uncover role for coumarins in structuring rhizobiome, particularly limiting growth of Pseudomonas strain, propose mechanism action involving reactive oxygen species. Our findings support possibility that form part plant’s adaptive response iron deficiency goes beyond mobilization modulate and highlight avenues toward engineering rhizosphere plant health.

Язык: Английский

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Crying out for help with root exudates: adaptive mechanisms by which stressed plants assemble health-promoting soil microbiomes

Current Opinion in Microbiology, Год журнала: 2019, Номер 49, С. 73 - 82

Опубликована: Июнь 1, 2019

Язык: Английский

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Systemic propagation of immunity in plants

New Phytologist, Год журнала: 2020, Номер 229(3), С. 1234 - 1250

Опубликована: Сен. 26, 2020

Systemic immunity triggered by local plant-microbe interactions is studied as systemic acquired resistance (SAR) or induced (ISR) depending on the site of induction and lifestyle inducing microorganism. SAR pathogens interacting with leaves, whereas ISR beneficial microbes roots. Although salicylic acid (SA) a central component SAR, additional signals exclusively promote not immunity. These cooperate in SAR- possibly also ISR-associated signaling networks that regulate The non-SA pathway driven pipecolic its presumed bioactive derivative N-hydroxy-pipecolic acid. This further regulates inter-plant defense propagation through volatile organic compounds are emitted SAR-induced plants recognized cues neighboring plants. Both influence phytohormone crosstalk towards enhanced against pathogens, which at same time affects composition plant microbiome. potentially leads to changes defense, plant-microbe, plant-plant interactions. Therefore, we propose such inter-organismic could be combined highly effective protection strategies.

Язык: Английский

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Plant Microbiome Engineering: Expected Benefits for Improved Crop Growth and Resilience

Trends in biotechnology, Год журнала: 2020, Номер 38(12), С. 1385 - 1396

Опубликована: Май 22, 2020

Язык: Английский

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The Plant Microbiome: From Ecology to Reductionism and Beyond

Annual Review of Microbiology, Год журнала: 2020, Номер 74(1), С. 81 - 100

Опубликована: Июнь 12, 2020

Methodological advances over the past two decades have propelled plant microbiome research, allowing field to comprehensively test ideas proposed a century ago and generate many new hypotheses. Studying distribution of microbial taxa genes across habitats has revealed importance various ecological evolutionary forces shaping microbiota. In particular, selection imposed by strongly shapes diversity composition microbiota leads adaptation associated with navigating immune system utilizing plant-derived resources. Reductionist approaches demonstrated that interaction between immunity is, in fact, bidirectional plants, microbiota, environment shape complex chemical dialogue collectively orchestrates plantmicrobiome. The next stage research will require integration reductionist establish general understanding assembly function both natural managed environments.

Язык: Английский

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Rhizosphere Engineering With Plant Growth-Promoting Microorganisms for Agriculture and Ecological Sustainability

Frontiers in Sustainable Food Systems, Год журнала: 2021, Номер 5

Опубликована: Фев. 15, 2021

The rhizosphere is undoubtedly the most complex microhabitat, comprised of an integrated network plant roots, soil, and a diverse consortium bacteria, fungi, eukaryotes, archaea. conditions have direct impact on crop growth yield. Nutrient-rich environments stimulate yield vice versa. Extensive cultivation exhaust soils which need to be nurtured before or during next crop. Chemical fertilizers are major source nutrients but their uncontrolled widespread usage has posed serious threat sustainability agriculture stability ecosystem. These chemicals accumulated in drained water, emitted air where they persist for decades causing overall Plant growth-promoting rhizobacteria (PGPR) present convert many plant-unavailable essential e.g., nitrogen, phosphorous, zinc, etc. into available forms. PGPR produces certain hormones (such as auxin, cytokinin, gibberellin), cell lytic enzymes (chitinase, protease, hydrolases, etc.), secondary metabolites, antibiotics, stress alleviating compounds (e.g., 1-Aminocyclopropane-1- carboxylate deaminase), chelating agents (siderophores), some signaling N-Acyl homoserine lactones) interact with beneficial pathogenic counterparts rhizosphere. multifarious activities improve soil structure, health, fertility, functioning directly indirectly support under normal stressed environments. Rhizosphere engineering these wide-ranging application not only fertilization developing eco-friendly sustainable agriculture. Due severe climate change effects plants biology, there growing interest stress-resilient PGPM subsequent induce (drought, salinity, heat) tolerance mechanism plants. This review describes three components explicit focus broader perspective that could facilitate selected hosts serve efficient component

Язык: Английский

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The Age of Coumarins in Plant–Microbe Interactions

Plant and Cell Physiology, Год журнала: 2019, Номер 60(7), С. 1405 - 1419

Опубликована: Апрель 23, 2019

Coumarins are a family of plant-derived secondary metabolites that produced via the phenylpropanoid pathway. In past decade, coumarins have emerged as iron-mobilizing compounds secreted by plant roots and aid in iron uptake from iron-deprived soils. Members coumarin found many species. Besides their role uptake, been extensively studied for potential to fight infections both plants animals. Coumarin activities range antimicrobial antiviral anticoagulant anticancer. recent years, studies model species tobacco Arabidopsis significantly increased our understanding biosynthesis, accumulation, secretion, chemical modification modes action against pathogens. Here, we review current knowledge on different We focus simple provide an overview biosynthesis environmental stress responses, with special attention recently discovered semiochemical aboveground belowground plant-microbe interactions assembly root microbiome.

Язык: Английский

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Root-Secreted Coumarins and the Microbiota Interact to Improve Iron Nutrition in Arabidopsis

Cell Host & Microbe, Год журнала: 2020, Номер 28(6), С. 825 - 837.e6

Опубликована: Окт. 6, 2020

Plants benefit from associations with a diverse community of root-colonizing microbes. Deciphering the mechanisms underpinning these beneficial services are interest for improving plant productivity. We report plant-beneficial interaction between Arabidopsis thaliana and root microbiota under iron deprivation that is dependent on secretion plant-derived coumarins. Disrupting this pathway alters impairs growth in iron-limiting soil. Furthermore, improves performance via mechanism import coumarin fraxetin. This trait strain specific yet functionally redundant across phylogenetic lineages microbiota. Transcriptomic elemental analyses revealed commensals coumarins promotes by relieving starvation. These results show improve eliciting microbe-assisted nutrition. propose bacterial microbiota, stimulated secreted coumarins, an integral mediator adaptation to soils.

Язык: Английский

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