Unravelling Plant-Microbe Synergy focuses on agriculturally important microorganisms (AIM’s) that are indigenous to soil and roots of the plant. These microbes contributing to nutrient balance, growth regulators, suppressing pathogens, alleviate stress response, orchestrating immune response and improving crop performance as they are offering sustainable and alternative solutions to the use of chemicals in agriculture. As plant microbe synergy is an enthralling subject, is multidisciplinary in nature, and concerns scientists involved in applied, and environmental microbiology and plant health and plant protection, Unravelling Plant-Microbe Synergy is an ideal resource that emphasizes the current trends of, and probable future of, microbes mediated amelioration of abiotic and biotic stress, agriculture sustainability, induced systemic tolerance and plant health protection. Unravelling Plant-Microbe Synergy discloses the microbial interaction for stress management and provides a better understanding to know the recent mechanisms to cope these environmental stresses. Unravelling Plant-Microbe Synergy bridges the gap in recent advances in the microbes interaction and rhizosphere engineering.
Author(s): Dinesh Chandra, Pankaj Bhatt
Series: Developments in Applied Microbiology and Biotechnology
Publisher: Academic Press
Year: 2022
Language: English
Pages: 314
City: London
Front Cover
Unravelling Plant-Microbe Synergy
Copyright
Contents
Contributors
Chapter 1 Multiomics strategies for alleviation of abiotic stresses in plants
Introduction
Plant responses to abiotic stress
Abiotic stress alleviation by microbes
Drought stress
Salinity stress
Heavy metal stress
Heat stress
Microbe-mediated alleviation of abiotic stresses in plants: The omics approaches
Genomics
Transcriptomics
Metagenomics
Proteomics
Metabolomics
Induction of abiotic stress-responsive genes for stress relief by PGPB
Conclusions and future perspectives
Acknowledgments
References
Chapter 2 Recent advances in the application of microbial inoculants in the phytoremediation of xenobiotic compounds
Introduction
Phytoextraction
Rhizofiltration
Phytostabilization
Rhizospheric microbes for pollutant degradation
Conclusions and future perspectives
References
Chapter 3 Multifaceted roles of root exudates in light of plant-microbe interaction
Introduction
Chapter review methodology
Root exudates: Natural rhizodeposits of plants
Root exudates
Border cells
Mucilage
Gaseous components
Factors affecting the release of root exudates
Physical factors
Chemical factors
Biological factors
The mechanism of root exudation
The role of root exudates in plant-microbe communication
Positive interactions: Root colonization and stress tolerance
Nitrogen-fixing symbionts
Mycorrhizal associations
Endophytic associations
Plant-PGPR interactions
Biotic stress tolerance: Biocontrol
Abiotic stress tolerance: Bioremediation
Negative interactions: Root exudate-mediated antagonistic activities
Secretion of antimicrobials
Biofilm inhibition
Quorum-sensing mimics
Tripartite interactions between plants, microbes, and nematodes
The effects of root exudates on shaping rhizospheric microbial communities
Conclusions
Acknowledgments
References
Chapter 4 Elicitins as microbe-associated molecular patterns and their role in plant defense
Introduction
Pathogen-associated molecular patterns (PAMPs)
PAMP-triggered immunity (PTI)
Effector-triggered immunity (ETI)
Systemic acquired resistance (SAR)
Induced systemic resistance (ISR)
Elicitins
Conclusions
References
Chapter 5 Molecular insights into stress-responsive genes in the mitigation of environmental stresses
Introduction
Stress: Abiotic and biotic
Abiotic stress
Biotic stress
Impact of stresses on plant productivity
Plant approaches for adaptation and mitigation against stresses
Adaptations
Mitigation
Stress-responsive genes for mitigating abiotic stress responses in plants
Drought
Temperature stress
Heat stress
Cold stress
Light and radiation stress
Salinity stress
Heavy metal stress
Stress-responsive genes for mitigating biotic stress responses in plants
Microbes and pathogens
Nematodes
Insects
Conclusions
References
Further reading
Chapter 6 Microbial diversity and root exudates as an important facet in the rhizosphere ecosystem
Introduction
Plants releasing root exudates
Types and forms of root exudates
Variations in the metabolite profile among growth forms and within species
Microbial diversity in response to root exudates
Plant–plant interaction
The mechanism of transport of root exudates into the rhizoplane
Conclusions
References
Chapter 7 Advantages of using halotolerant/halophilic bacteria in agriculture
Introduction
Halophilic/halotolerant bacteria and their importance in agricultural applications
Alteration of the levels of plant hormones
Nitrogen fixation
Siderophore production
Phosphate solubilization
Antagonistic activity of halophilic bacteria
EPS production
Application of halophilic/halotolerant bacteria as plant growth-promoting agents
Conclusions
References
Chapter 8 Inflection of the root microbiome by plants: Plant growth promotion and disease management
Introduction
Interactions between plants and the microbiota and associated soil
Ecology of plant microbiomes
Endophytes
Epiphytes
Rhizobiomes
Plant microbiome function and interaction
Nutrient acquisition and growth promotion
Disease suppression
Stress tolerance
Factors affecting plant microbiomes
Apprenticing and modulating plant microbiomes
Plant–microbiome operation
Positive interactions
Negative interactions
Conclusion and future perspectives
References
Chapter 9 The use of microbes as a combative strategy for alleviation of abiotic and biotic stresses
Introduction
Abiotic and biotic stresses encountered by plants and how they inherently cope with them
Abiotic stresses
Biotic stresses
Mechanisms of PGPM-mediated stress tolerance
Microbial secretions that help in abiotic stress tolerance
Exopolysaccharide production
Production of phytohormones
Secretion of 1-aminocyclopropane-1 carboxylate (ACC) deaminase
Production of compatible osmolytes and other metabolites
Production of volatile organic compounds
Plant responses to PGPM inoculation under abiotic stress
Expression of stress-inducible genes
Modulation in the levels of stress-induced metabolites
Regulation of phytohormone signaling
Mechanisms of PGPM-mediated biotic stress tolerance
Production of antibiotics, lytic enzymes, and hydrogen cyanide (HCN)
Production of siderophores
Plant responses to PGPM inoculation under biotic stress
Use of PGPR as agents of abiotic and biotic stress tolerance for sustainable agriculture
References
Chapter 10 Microbial nanotechnology: A green approach towards sustainable agriculture
Introduction
Nanomaterials
Synthesis of nanoparticles
Nanoparticle synthesis by microbes
The mechanism of nanoparticle synthesis
Nanoparticle synthesis by fungi
Nanoparticle synthesis by algae
Nanoparticle synthesis by bacteria
Nanoparticle synthesis by Actinomycetes
Nanotechnology and sustainable agriculture
Nanofertilizers
Nanobiosensors
Crop protectors
Nanoherbicides
Nanopesticides
Applications of nanomaterials in disease management
Effects of nanoparticles on seed germination and plant growth
Nanotechnology in plant resistance
Conclusions and future perspectives
References
Chapter 11 Microbial cross talk: Below and above ground
Introduction
Beneficial functions of rhizospheric microbiomes
Nutrient acquisition
Stress tolerance
Pathogen suppression
Signal molecule-mediated communication between microorganisms and plants
Cross talk between plants and microbes
Impact of positive and negative interactions on plants and microbial diversity
Understanding the below- and above-ground microbial interactions via omics studies
Influence of below-ground microbiota on above-ground interactions
Conclusions and future perspectives
References
Chapter 12 Arbuscular mycorrhizal fungi symbiosis and food security
Introduction
Challenges to agricultural development: The driving force behind food security
Agricultural sustainability as a viable option
The general concept of arbuscular mycorrhizal symbiosis
Direct benefits of arbuscular mycorrhizal symbiosis
AMF symbiosis improves nutritional status and crop growth
AMF symbiosis improves crop yield
Indirect benefits of arbuscular mycorrhizal symbiosis
AMF affect plant defense and disease resistance
Quality of process products from AMF plants
AMF improve soil quality and reduce soil erosion
Single versus multiple species-based AMF inoculants for efficiency assurance
Conclusions
References
Chapter 13 Microbe-mediated abiotic stress management for sustainable agriculture
Introduction
Abiotic stresses and their impact on plant growth and development
Temperature
Salinity
Drought stress
Heavy metal stress
UV radiation
Alleviation of abiotic stress in plants by microorganisms
Production of plant hormones
Production of ACC deaminase
Production of exopolysaccharides (EPSs)
Production of microbial volatile organic compounds (MVOCs)
Nutrient cycle management
Rhizosphere management to improve soil and plant productivity
Crop management
Soil management
Microbiological management
Rhizospheric biota management through a holobiont approach
Conclusions and future perspectives
References
Chapter 14 Role of microorganisms in alleviation of arsenic toxicity in plants
Introduction
The status of arsenic contamination in food crops
Arsenic-resistant microorganisms
Bacteria
Fungi
Archaebacteria
Cyanobacteria
Genetics of arsenic resistance in microorganisms
Microorganisms-assisted phytoremediation and mechanisms of microorganisms-mediated arsenic bioremediation
Oxidation of arsenite
Methylation and demethylation
Mobilization and immobilization
Other mitigation strategies for reducing arsenic toxicity in plants
Modifications in agronomical practices
Applications of nanoparticles
Genetic modifications in arsenic transporters in plants
Conclusions
References
Chapter 15 Chemistry of plant microbe synergy in the rhizosphere
Introduction
Beneficial microorganisms
Plant growth-promoting rhizobacteria (PGPR)
Arbuscular mycorrhiza fungi
Trichoderma: A biocontrol agent
The rhizosphere: The main hotspot for microbial communities
Microbial signaling molecules and quorum sensing
Root exudates as plant-to-microbe signals
Various mechanisms in plant–microbe interactions
Antagonistic mechanisms for biological control of plant pathogens
Colonization
Competition
Induced systemic resistance
Antioxidants in plant–microbe interactions
Conclusions
References
Index
Back Cover
