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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Biofertilizers: a potential approach for sustainable agriculture development

Environmental Science and Pollution Research, Journal Year: 2016, Volume and Issue: 24(4), P. 3315 - 3335

Published: Nov. 25, 2016

Language: Английский

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Ecology and Evolution of Plant Microbiomes

Annual Review of Microbiology, Journal Year: 2019, Volume and Issue: 73(1), P. 69 - 88

Published: May 15, 2019

Microorganisms colonizing plant surfaces and internal tissues provide a number of life-support functions for their host. Despite increasing recognition the vast functional capabilities microbiome, our understanding ecology evolution taxonomically hyperdiverse microbial communities is limited. Here, we review current knowledge genotypic phenotypic traits as well allogenic autogenic factors that shape microbiome composition functions. We give specific emphasis to impact domestication on assembly how insights into microbiomes wild relatives native habitats can contribute reinstate or enrich microorganisms with beneficial effects growth, development, health. Finally, introduce new concepts perspectives in research, particular community theory mechanistic framework unravel interplay distinct ecological processes-i.e., selection, dispersal, drift, diversification-that structure microbiome.

Language: Английский

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Chemical ecology of antibiotic production by actinomycetes

FEMS Microbiology Reviews, Journal Year: 2017, Volume and Issue: 41(3), P. 392 - 416

Published: Feb. 15, 2017

Actinomycetes are a diverse family of filamentous bacteria that produce plethora natural products relevant for agriculture, biotechnology and medicine, including the majority antibiotics we use in clinic. Rather than as free-living bacteria, many actinomycetes have evolved to live symbiosis with among others plants, fungi, insects sponges. As common theme, these organisms profit from enzymes produced by actinomycetes, example, protection against pathogenic microbes, growth promotion or degradation complex polymers such lignocellulose. At same time, benefit resources hosts they interact with. Evidence is accumulating interactions control expression biosynthetic gene clusters played major role evolution high chemical diversity actinomycete-produced secondary metabolites. Many poorly expressed under laboratory conditions, but likely response host-specific demands. Here, review environmental triggers cues product formation provide pointers how insights may be harnessed drug discovery.

Language: Английский

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Biofertilizers: An ecofriendly technology for nutrient recycling and environmental sustainability

Current Research in Microbial Sciences, Journal Year: 2021, Volume and Issue: 3, P. 100094 - 100094

Published: Dec. 20, 2021

Modern intensive agricultural practices face numerous challenges that pose major threats to global food security. In order address the nutritional requirements of ever-increasing world population, chemical fertilizers and pesticides are applied on large scale increase crop production. However, injudicious use agrochemicals has resulted in environmental pollution leading public health hazards. Moreover, agriculture soils continuously losing their quality physical properties as well (imbalance nutrients) biological health. Plant-associated microbes with plant growth- promoting traits have enormous potential solve these play a crucial role enhancing biomass yield. The beneficial mechanisms growth improvement include enhanced nutrient availability, phytohormone modulation, biocontrol phytopathogens amelioration biotic abiotic stresses. Solid-based or liquid bioinoculant formulation comprises inoculum preparation, addition cell protectants such glycerol, lactose, starch, good carrier material, proper packaging best delivery methods. Recent developments entrapment/microencapsulation, nano-immobilization microbial bioinoculants biofilm-based biofertilizers. This review critically examines current state-of-art strains biofertilizers important roles performed by maintaining soil fertility productivity.

Language: Английский

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Functional Soil Microbiome: Belowground Solutions to an Aboveground Problem

PLANT PHYSIOLOGY, Journal Year: 2014, Volume and Issue: 166(2), P. 689 - 700

Published: July 24, 2014

Abstract There is considerable evidence in the literature that beneficial rhizospheric microbes can alter plant morphology, enhance growth, and increase mineral content. Of late, there a surge to understand impact of microbiome on health. Recent research shows utilization novel sequencing techniques identify model systems such as Arabidopsis (Arabidopsis thaliana) maize (Zea mays). However, it not known how community identified may play role improve health fitness. are very few detailed studies with isolated showing importance functional fitness disease protection. Some recent work cultivated rice (Oryza sativa) wide diversity bacterial species associated roots field-grown plants. biological significance potential effects host plants completely unknown. Work performed strains showed various genetic pathways involved recognition host-specific factors roles host-microbe interactions. The composition dynamic controlled by multiple factors. In case rhizosphere, temperature, pH, presence chemical signals from bacteria, plants, nematodes all shape environment influence which organisms will flourish. This provides basis for their microbiomes selectively associate one another. Update addresses phenotypes provide sustainable effective strategy crop yield food security.

Language: Английский

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The unseen rhizosphere root–soil–microbe interactions for crop production

Current Opinion in Microbiology, Journal Year: 2017, Volume and Issue: 37, P. 8 - 14

Published: April 21, 2017

Language: Английский

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Alleviation of drought stress in pulse crops with ACC deaminase producing rhizobacteria isolated from acidic soil of Northeast India

Scientific Reports, Journal Year: 2018, Volume and Issue: 8(1)

Published: Feb. 19, 2018

Abstract The agricultural crops are often affected by the scarcity of fresh water. Seasonal drought is a major constraint on Northeast Indian agriculture. Almost 80% land in this region acidic and facing severe during winter period. Apart from classical breeding transgenic approaches, application plant-growth-promoting bacteria (PGPB) an alternative strategy for improving plant fitness under stressful conditions. 1-aminocyclopropane-1-carboxylate (ACC) deaminase-producing PGPB offer stress tolerance regulating ethylene levels. aim present study was to evaluate consortium effect three ACC-deaminase producing rhizobacteria – Ochrobactrum pseudogrignonense RJ12, Pseudomonas sp.RJ15 Bacillus subtilis RJ46 alleviation Vigna mungo L. Pisum sativum Consortium treatment significantly increase seed germination percentage, root length, shoot dry weight treated plants. An elevated production reactive oxygen species scavenging enzymes cellular osmolytes; higher leaf chlorophyll content; relative water content recovery intension were observed after comparison with uninoculated plants decreased ACC accumulation down-regulated ACC-oxidase gene expression. This could be effective bio-formulator crop health improvement drought-affected fields.

Language: 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, Journal Year: 2020, Volume and Issue: 4

Published: July 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.

Language: Английский

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Plant beneficial rhizospheric microorganism (PBRM) strategies to improve nutrients use efficiency: A review

Ecological Engineering, Journal Year: 2017, Volume and Issue: 107, P. 8 - 32

Published: July 7, 2017

Language: Английский

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