Dynamic root exudate chemistry and microbial substrate preferences drive patterns in rhizosphere microbial community assembly

Nature Microbiology, Journal Year: 2018, Volume and Issue: 3(4), P. 470 - 480

Published: March 15, 2018

Language: Английский

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Feed Your Friends: Do Plant Exudates Shape the Root Microbiome?

Trends in Plant Science, Journal Year: 2017, Volume and Issue: 23(1), P. 25 - 41

Published: Oct. 17, 2017

Language: Английский

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Plant Growth-Promoting Rhizobacteria: Context, Mechanisms of Action, and Roadmap to Commercialization of Biostimulants for Sustainable Agriculture

Frontiers in Plant Science, Journal Year: 2018, Volume and Issue: 9

Published: Oct. 23, 2018

Microbes of the phytomicrobiome are associated with every plant tissue and, in combination form holobiont. Plants regulate composition and activity their bacterial community carefully. These microbes provide a wide range services benefits to plant; return, provides microbial reduced carbon other metabolites. Soils generally moist environment, rich which supports extensive soil communities. The rhizomicrobiome is great importance agriculture owing diversity root exudates cell debris that attract diverse unique patterns colonization. play key roles nutrient acquisition assimilation, improved texture, secreting modulating extracellular molecules such as hormones, secondary metabolites, antibiotics various signal compounds, all leading enhancement growth. compounds they secrete constitute valuable biostimulants pivotal stress responses. Research has demonstrated inoculating plants plant-growth promoting rhizobacteria (PGPR) or treating microbe-to-plant can be an effective strategy stimulate crop Furthermore, these strategies improve tolerance for abiotic stresses (egs. drought, heat, salinity) likely become more frequent climate change conditions continue develop. This discovery resulted multifunctional PGPR-based formulations commercial agriculture, minimize use synthetic fertilizers agrochemicals. review update about role PGPR from collection commercialization low-cost agricultural inputs. First, we introduce concept context underlying food security 21st century. Next, mechanisms growth promotion by discussed, including exchange between roots how relationships modulate responses via induced systemic resistance. On application side, discussed rhizosphere colonization inoculants. final sections paper describe applications century roadmap technology.

Language: Английский

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Disentangling mechanisms that mediate the balance between stochastic and deterministic processes in microbial succession

Proceedings of the National Academy of Sciences, Journal Year: 2015, Volume and Issue: 112(11)

Published: March 2, 2015

Significance Across ecology, and particularly within microbial there is limited understanding of the mechanisms governing relative influences stochastic deterministic processes. Filling this knowledge gap a major challenge that requires development novel conceptual paradigms, experiments, ecological models. Here we ( i ) present model couples stochastic/deterministic balance to primary secondary succession, thereby integrating previously isolated domains; ii evaluate over 105 years ecosystem development, revealing systematic shift in type strength selection; iii couple empirical data with new simulation elucidate underlying characterize their scale dependency. The insights framework provided here represent nexus for cross-system integration.

Language: Английский

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A review on the plant microbiome: Ecology, functions, and emerging trends in microbial application

Journal of Advanced Research, Journal Year: 2019, Volume and Issue: 19, P. 29 - 37

Published: March 20, 2019

Plants have evolved with a plethora of microorganisms having important roles for plant growth and health. A considerable amount information is now available on the structure dynamics microbiota as well functional capacities isolated community members. Due to interesting potential due current challenges in crop production there an urgent need bring microbial innovations into practice. Different approaches microbiome improvement exist. On one hand strains or strain combinations can be applied, however, field success often variable urgently required. Smart, knowledge-driven selection needed use suitable delivery formulations. other hand, farming practices genotype influence thus functioning. Therefore, appropriate breeding leading improved plant-microbiome interactions are avenues increase benefit microbiota. In conclusion, different making new generation inoculants application microbiome-based agro-management lines could lead better microbiome. This paper reviews importance functionalities bacterial discusses concepts regard plant-associated bacteria.

Language: Английский

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Microbial interactions within the plant holobiont

Microbiome, Journal Year: 2018, Volume and Issue: 6(1)

Published: March 27, 2018

Since the colonization of land by ancestral plant lineages 450 million years ago, plants and their associated microbes have been interacting with each other, forming an assemblage species that is often referred to as a "holobiont." Selective pressure acting on holobiont components has likely shaped plant-associated microbial communities selected for host-adapted microorganisms impact fitness. However, high densities detected tissues, together fast generation time more ancient origin compared host, suggest microbe-microbe interactions are also important selective forces sculpting complex assemblages in phyllosphere, rhizosphere, endosphere compartments. Reductionist approaches conducted under laboratory conditions critical decipher strategies used specific cooperate compete within or outside tissues. Nonetheless, our understanding these shaping communities, along relevance host health natural context, remains sparse. Using examples obtained from reductionist community-level approaches, we discuss fundamental role (prokaryotes micro-eukaryotes) community structure health. We provide conceptual framework illustrating among microbiota members establishment maintenance host-microbial homeostasis.

Language: Английский

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The interconnected rhizosphere: High network complexity dominates rhizosphere assemblages

Ecology Letters, Journal Year: 2016, Volume and Issue: 19(8), P. 926 - 936

Published: June 6, 2016

Abstract While interactions between roots and microorganisms have been intensively studied, we know little about among root‐associated microbes. We used random matrix theory‐based network analysis of 16S rRNA genes to identify bacterial networks associated with wild oat ( Avena fatua ) over two seasons in greenhouse microcosms. Rhizosphere were substantially more complex than those surrounding soils, indicating the rhizosphere has a greater potential for niche‐sharing. Network complexity increased as plants grew, even diversity decreased, highlighting that community organisation is not captured by univariate diversity. Covariations predominantly positive (> 80%), suggesting extensive mutualistic may occur bacteria; identified quorum‐based signalling one strategy. Putative keystone taxa often had low relative abundances, low‐abundance significantly contribute function. complexity, previously undescribed property microbiome, appears be defining characteristic this habitat.

Language: Английский

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The Plant Microbiota: Systems-Level Insights and Perspectives

Annual Review of Genetics, Journal Year: 2016, Volume and Issue: 50(1), P. 211 - 234

Published: Sept. 20, 2016

Plants do not grow as axenic organisms in nature, but host a diverse community of microorganisms, termed the plant microbiota. There is an increasing awareness that microbiota plays role growth and can provide protection from invading pathogens. Apart intense research on crop plants, Arabidopsis emerging valuable model system to investigate drivers shaping stable bacterial communities leaves roots tool decipher intricate relationship among its colonizing microorganisms. Gnotobiotic experimental systems help establish causal relationships between genotypes phenotypes test hypotheses biotic abiotic perturbations systematic way. We highlight major recent findings using comparative profiling omics analyses, discuss these approaches light establishment beneficial traits like nutrient acquisition health.

Language: Английский

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Rhizosphere interactions: root exudates, microbes, and microbial communities

Botany, Journal Year: 2014, Volume and Issue: 92(4), P. 267 - 275

Published: Feb. 26, 2014

The study of the interactions between plants and their microbial communities in rhizosphere is important for developing sustainable management practices agricultural products such as biofertilizers biopesticides. Plant roots release a broad variety chemical compounds to attract select microorganisms rhizosphere. In turn, these plant-associated microorganisms, via different mechanisms, influence plant health growth. this review, we summarize recent progress made unraveling microbes through root exudates, focusing on how exudate mediate rhizospheric both at plant–microbe plant–microbiome levels. We also discuss potential exudates harnessing with that could lead practices.

Language: Английский

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Microbiota and Host Nutrition across Plant and Animal Kingdoms

Cell Host & Microbe, Journal Year: 2015, Volume and Issue: 17(5), P. 603 - 616

Published: May 1, 2015

Language: Английский

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