Impact of plant domestication on rhizosphere microbiome assembly and functions

Plant Molecular Biology, Год журнала: 2015, Номер 90(6), С. 635 - 644

Опубликована: Июнь 17, 2015

The rhizosphere microbiome is pivotal for plant health and growth, providing defence against pests diseases, facilitating nutrient acquisition helping plants to withstand abiotic stresses. Plants can actively recruit members of the soil microbial community positive feedbacks, but underlying mechanisms traits that drive assembly functions are largely unknown. Domestication species has substantially contributed human civilization, also caused a strong decrease in genetic diversity modern crop cultivars may have affected ability establish beneficial associations with microbes. Here, we review how shape domestication impacted via habitat expansion changes management practices, root exudation, architecture, litter quality. We propose "back roots" framework comprises exploration indigenous their native habitats identification ultimate goal reinstate been undermined during domestication.

Язык: Английский

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Phytohormones as integrators of environmental signals in the regulation of mycorrhizal symbioses

New Phytologist, Год журнала: 2015, Номер 205(4), С. 1431 - 1436

Опубликована: Янв. 7, 2015

Summary For survival, plants have to efficiently adjust their phenotype environmental challenges, finely coordinating responses balance growth and defence. Such phenotypic plasticity can be modulated by associated microbiota. The widespread mycorrhizal symbioses modify plant external stimuli, generally improving the resilience of symbiotic system stresses. Phytohormones, central regulators development immunity, are instrumental in orchestrating fluctuating environment, but also regulation symbioses. Exciting advances molecular phytohormone signalling providing mechanistic insights into how coordinate cues functioning. Here, we summarize these mechanisms permit fine‐tuning symbiosis according ever‐changing environment. Contents 1431 I. Introduction II. Hormonal regulates defence 1432 III. Phytohormones control arbuscular 1433 IV. Environmental conditions an impact on partner's interactions 1434 V. Mycorrhizal alters hormone homeostasis host its response challenges 1435 VI. Conclusions outlook Acknowledgements References

Язык: Английский

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Plant health: feedback effect of root exudates-rhizobiome interactions

Applied Microbiology and Biotechnology, Год журнала: 2018, Номер 103(3), С. 1155 - 1166

Опубликована: Дек. 20, 2018

The well-being of the microbial community that densely populates rhizosphere is aided by a plant's root exudates. Maintaining health key factor in its continued existence. As minute as rhizospheric microbes are, their importance plant growth cannot be overemphasized. They depend on plants for nutrients and other necessary requirements. relationship between rhizosphere-microbiome (rhizobiome) hosts can beneficial, non-effectual, or pathogenic depending involved. This relationship, to large extent, determines fate host survival. Modern molecular techniques have been used unravel rhizobiome species' composition, but interplay exudates factors maintenance healthy not yet thoroughly investigated. Many functional proteins are activated upon contact with external factors. These may elicit promoting suppressing responses from plants. To optimize productivity plants, diversity modulatory need clearly understood improved health.

Язык: Английский

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Microbially Mediated Plant Salt Tolerance and Microbiome-based Solutions for Saline Agriculture

Biotechnology Advances, Год журнала: 2016, Номер 34(7), С. 1245 - 1259

Опубликована: Сен. 9, 2016

Язык: Английский

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Microbial interactions: ecology in a molecular perspective

Brazilian Journal of Microbiology, Год журнала: 2016, Номер 47, С. 86 - 98

Опубликована: Окт. 26, 2016

The microorganism–microorganism or microorganism–host interactions are the key strategy to colonize and establish in a variety of different environments. These involve all ecological aspects, including physiochemical changes, metabolite exchange, conversion, signaling, chemotaxis genetic exchange resulting genotype selection. In addition, establishment environment depends on species diversity, since high functional redundancy microbial community increases competitive ability community, decreasing possibility an invader this environment. Therefore, these associations result co-evolution process that leads adaptation specialization, allowing occupation niches, by reducing biotic abiotic stress exchanging growth factors signaling. Microbial occur transference molecular information, many mechanisms can be involved such as secondary metabolites, siderophores, quorum sensing system, biofilm formation, cellular transduction among others. ultimate unit interaction is gene expression each organism response environmental (biotic abiotic) stimulus, which responsible for production molecules interactions. present review, we focused some interaction, not only microbial–host has been exploited other reviews, but also used microorganisms modulate structuration community.

Язык: Английский

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The Roles of Plant Growth Promoting Microbes in Enhancing Plant Tolerance to Acidity and Alkalinity Stresses

Frontiers in Sustainable Food Systems, Год журнала: 2020, Номер 4

Опубликована: Июль 10, 2020

Plant growth often occurs under a range of stressful conditions, including soil acidity and alkalinity. Hydrogen ion concentration, which determines pH the soil, regulates entire chemistry plant nutrient colloidal solutions. Beyond certain levels multiple stresses such as hydrogen toxicity, imbalance, toxicities deficiencies are induced in plants. Breeding for stress coupled with suitable agronomic practices has been way to deal this situation agriculture. However, promoting microbes (PGPM) have shown potential sustainable enhancers help environmental stresses. Considering long-term evolutionary relationships between plants microbes, it is probable that much remains unknown about benefits could be harnessed from PGPM. This article reviews current understanding alkalinity effects on various approaches or address these review further provides detailed account regarding role PGPM management, when breeding combined. Approaches already evaluated limitations because soils gradual progressive conditions. Greater exploitation regard, would interesting explore they more fashion. Future crop production will require tolerance, but also implementation microbial technologies provide enhanced tolerance stress.

Язык: Английский

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Plant growth promoting bacteria in agriculture: Two sides of a coin

Applied Soil Ecology, Год журнала: 2019, Номер 138, С. 10 - 18

Опубликована: Март 2, 2019

Язык: Английский

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Rhizosphere microbiome: Engineering bacterial competitiveness for enhancing crop production

Journal of Advanced Research, Год журнала: 2020, Номер 24, С. 337 - 352

Опубликована: Апрель 30, 2020

Plants in nature are constantly exposed to a variety of abiotic and biotic stresses which limits their growth production. Enhancing crop yield production feed exponentially growing global population sustainable manner by reduced chemical fertilization agrochemicals will be big challenge. Recently, the targeted application beneficial plant microbiome cocktails counteract stress is gaining momentum becomes an exciting frontier research. Advances next generation sequencing (NGS) platform, gene editing technologies, metagenomics bioinformatics approaches allows us unravel entangled webs interactions holobionts core microbiomes for efficiently deploying increase crops nutrient acquisition resistance stress. In this review, we focused on shaping rhizosphere susceptible host from resistant comprises specific type microbial community with multiple potential benefits CRISPR/Cas9 based strategies manipulation susceptibility genes plants improving health. This review significant providing first-hand information improve fundamental understanding process helps microbiome.

Язык: Английский

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Specialized Microbiome of a Halophyte and its Role in Helping Non-Host Plants to Withstand Salinity

Scientific Reports, Год журнала: 2016, Номер 6(1)

Опубликована: Авг. 30, 2016

Abstract Root microbiota is a crucial determinant of plant productivity and stress tolerance. Here, we hypothesize that the superior halo-tolerance seepweed Suaeda salsa tightly linked to specialized belowground microbiome. To test this hypothesis, performed phylogenetic trait-based framework analysis based on bacterial 16S rRNA gene fungal nuclear internal transcribed spacer profiling. Data showed dominant α-proteobacteria γ-proteobacteria communities in bulk soil root endosphere tend be phylogenetically clustered at same time exhibit over-dispersion rhizosphere. Likewise, genera occurred high redundancy. Interestingly, found genomes rhizospheric endophytic bacteria associated with S. enriched genes contributing salt acclimatization, nutrient solubilization competitive colonization. A wide diversity rhizobacteria similarity known halotolerant taxa further supported interpretation. These findings suggest an ecological patterned root-microbial interaction strategy has been adopted system confront salinity. We also demonstrated potential core microbiome members improve non-host plants growth This work provides platform fitness halophytes-microbial associates novel insights into functions under

Язык: Английский

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Microbiome Selection Could Spur Next-Generation Plant Breeding Strategies

Frontiers in Microbiology, Год журнала: 2016, Номер 7

Опубликована: Дек. 7, 2016

"No plant is an island too…" Plants, though sessile, have developed a unique strategy to counter biotic and abiotic stresses by symbiotically co-evolving with microorganisms tapping into their genome for this purpose. Soil the bank of microbial diversity from which selectively sources its microbiome suit needs. Besides soil, seeds, carry genetic blueprint plants during trans-generational propagation, are home diverse microbiota that acts as principal source inoculum in crop cultivation. Overall, ensconced both on outside inside assemblage microbiota. Together, genes harbors different tissues, i.e., 'plant microbiome,' form holobiome now considered unit selection: 'the holobiont.' The microbiome' not only helps remain fit but also offers critical variability, hitherto, employed breeding breeders, who traditionally exploited variability host developing high yielding or disease tolerant drought resistant varieties. This fresh knowledge microbiome, particularly rhizosphere, offering plants, opens up new horizons could usher cultivation next-generation crops depending less inorganic inputs, insect pest diseases resilient climatic perturbations. We surmise, ever increasing evidences, symbionts need be co-propagated life-long partners future strategies breeding. In perspective, we propose bottom-up approach co-propagate co-evolved, along target through - (i) reciprocal soil transplantation method, (ii) artificial ecosystem selection method synthetic inocula, (iii) exploration microRNA transfer realizing approach. Our aim, thus, bring closer information accrued advanced nucleotide sequencing bioinformatics conjunction conventional culture-dependent isolation practical application overall agriculture.

Язык: Английский

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