Plant Growth Stimulation by Microbial Consortia

Agronomy, Journal Year: 2021, Volume and Issue: 11(2), P. 219 - 219

Published: Jan. 24, 2021

Plant-associated microorganisms play an important role in agricultural production. Although various studies have shown that single can exert beneficial effects on plants, it is increasingly evident when a microbial consortium—two or more interacting microorganisms—is involved, additive synergistic results be expected. This occurs, part, due to the fact multiple species perform variety of tasks ecosystem like rhizosphere. Therefore, mechanisms plant growth stimulation (i.e., enhanced nutrient availability, phytohormone modulation, biocontrol, biotic and abiotic stress tolerance) exerted by different players within rhizosphere, such as plant-growth-promoting bacteria (PGPB) fungi (such Trichoderma Mycorrhizae), are reviewed. In addition, their interaction activity highlighted they act part consortium, mainly mixtures PGPB, PGPB–Mycorrhizae, PGPB–Trichoderma, under normal diverse conditions. Finally, we propose expansion use consortia, well increase research facilitate best most consistent field.

Language: Английский

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Chemical signaling involved in plant–microbe interactions

Chemical Society Reviews, Journal Year: 2017, Volume and Issue: 47(5), P. 1652 - 1704

Published: Dec. 8, 2017

Plant and microorganisms actively communicate through chemical entities.

Language: Английский

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Minimal standards for the description of new genera and species of rhizobia and agrobacteria

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, Journal Year: 2019, Volume and Issue: 69(7), P. 1852 - 1863

Published: May 29, 2019

Herein the members of Subcommittee on Taxonomy Rhizobia and Agrobacteria International Committee Systematics Prokaryotes review recent developments in rhizobial agrobacterial taxonomy propose updated minimal standards for description new species (and genera) these groups. The essential requirements (minimal standards) a are (1) genome sequence at least proposed type strain (2) evidence differentiation from other based comparisons. It is also recommended that (3) genetic variation within documented with data several clearly different strains (4) phenotypic features described, their relevant set representative strains. Furthermore, it encouraged information provided (5) nodulation or pathogenicity phenotypes, as appropriate, gene sequences. These guidelines supplement current rules general bacterial taxonomy, which require (6) name conforms to Code Nomenclature Prokaryotes, (7) validation by publication either directly Journal Systematic Evolutionary Microbiology list when published elsewhere, (8) deposition two international culture collections separate countries.

Language: Английский

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Soil origin and plant genotype structure distinct microbiome compartments in the model legume Medicago truncatula

Microbiome, Journal Year: 2020, Volume and Issue: 8(1)

Published: Sept. 28, 2020

Abstract Background Understanding the genetic and environmental factors that structure plant microbiomes is necessary for leveraging these interactions to address critical needs in agriculture, conservation, sustainability. Legumes, which form root nodule symbioses with nitrogen-fixing rhizobia, have served as model plants understanding genetics evolution of beneficial plant-microbe decades, thus added value models plant-microbiome interactions. Here we use a common garden experiment 16S rRNA gene amplicon shotgun metagenomic sequencing study drivers microbiome diversity composition three genotypes legume Medicago truncatula grown two native soil communities. Results Bacterial decreased between external (rhizosphere) internal compartments (root endosphere, leaf endosphere). Community was shaped by strong compartment × origin genotype interactions, driven significant effects rhizosphere endosphere. Nevertheless, all were dominated Ensifer , genus rhizobia forms symbiosis M. additional suggests nodulating not genetically distinguishable from those elsewhere plant. We also identify handful OTUs are tissues, likely colonized Conclusions Our results demonstrate host filtering effects, rhizospheres genetics, several key nodule-inhabiting taxa coexist range. set stage future functional experiments aimed at expanding our pairwise legume-rhizobium toward more mechanistic microbiomes.

Language: Английский

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Recent Developments in the Study of Plant Microbiomes

Microorganisms, Journal Year: 2021, Volume and Issue: 9(7), P. 1533 - 1533

Published: July 19, 2021

To date, an understanding of how plant growth-promoting bacteria facilitate growth has been primarily based on studies individual interacting with plants under different conditions. More recently, it become clear that specific soil microorganisms interact one another in consortia the collective being responsible for positive effects growth. Different attract cross-sections and fungi soil, initially composition unique root exudates from each plant. Thus, mostly those are beneficial to exclude potentially pathogenic. Beneficial bacterial not only help promote growth, these also protect a wide range direct indirect environmental stresses. Moreover, is currently possible engineer seeds contain desired strains thereby benefit next generation plants. In this way, may no longer be necessary deliver microbiota growing As we develop better microbiomes, synthetic microbiomes where compatible work together natural

Language: Английский

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Humboldt Review: Are legumes different? Origins and consequences of evolving nitrogen fixing symbioses

Journal of Plant Physiology, Journal Year: 2022, Volume and Issue: 276, P. 153765 - 153765

Published: July 31, 2022

Language: Английский

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Communication between plant roots and the soil microbiome; involvement in plant growth and development

Symbiosis, Journal Year: 2023, Volume and Issue: 90(3), P. 231 - 239

Published: July 1, 2023

Abstract Root-associated microbial communities have strong influences on the health and development of plants. Through secretion root exudates, soil microbiome is impacted by plants, thereby steering plant-soil reactions. Considering importance exudates in establishment symbiotic associations rhizosphere, it quite clear that understanding interaction between plant roots may prove beneficial. Here, we review soil. The influence these bioactive molecules structure function microbes also considered. We additionally, deliberate how plants determine they extract nutrients from endophytes for augmentation their growth development. A good perspective communication could lead to increased crop production, limiting need synthetic fertilizers.

Language: Английский

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Microbiome convergence enables siderophore-secreting-rhizobacteria to improve iron nutrition and yield of peanut intercropped with maize

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Jan. 29, 2024

Abstract Intercropping has the potential to improve plant nutrition as well crop yield. However, exact mechanism promoting improved nutrient acquisition and role rhizosphere microbiome may play in this process remains poorly understood. Here, we use a peanut/maize intercropping system investigate of root-associated microbiota iron these crops, combining profiling, strain substance isolation functional validation. We find that increases peanut but not maize plants composition changes converges between two tested experiments. identify Pseudomonas secreted siderophore, pyoverdine, improves glasshouse field Our results suggest presence siderophore-secreting intercropped plays an important nutrition. These findings could be used envision future practices aiming

Language: Английский

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Pseudomonas in the spotlight: emerging roles in the nodule microbiome

Trends in Plant Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Rhizophagy Cycle: An Oxidative Process in Plants for Nutrient Extraction from Symbiotic Microbes

Microorganisms, Journal Year: 2018, Volume and Issue: 6(3), P. 95 - 95

Published: Sept. 17, 2018

In this paper, we describe a mechanism for the transfer of nutrients from symbiotic microbes (bacteria and fungi) to host plant roots that term ‘rhizophagy cycle.’ rhizophagy cycle, alternate between root intracellular endophytic phase free-living soil phase. Microbes acquire in phase; are extracted through exposure host-produced reactive oxygen We conducted experiments on several seed-vectored species. found initially grow rhizoplane exudate zone adjacent meristem. enter tip meristem cells—locating within periplasmic spaces cell wall plasma membrane. cells, convert wall-less protoplast forms. As cells mature, continue be subjected (superoxide) produced by NADPH oxidases (NOX) membranes. Reactive degrades some microbes, also likely inducing electrolyte leakage microbes—effectively extracting microbes. Surviving bacteria epidermal trigger hair elongation as hairs elongate exit at tips, reforming walls shapes emerge into rhizosphere where they may obtain additional nutrients. Precisely what transferred or how important process is nutrient acquisition still unknown.

Language: Английский

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