Advances in microbe-assisted phytoremediation of polluted sites / edited by Kuldeep Bauddh, Ying Ma.

Format:

Book

Contributor:

Bauddh, Kuldeep, editor.

Ma, Ying, editor.

Language:

English

Subjects (All):

Phytoremediation.

Decontamination (from gases, chemicals, etc.).

Pollution prevention.

Physical Description:

1 online resource (524 pages)

Place of Publication:

Amsterdam, Netherlands ; Kidlington, Oxford ; Cambridge, Massachusetts : Elsevier, [2022]

Summary:

"Advances in Microbe-assisted Phytoremediation of Polluted Sites provides a comprehensive overview of the use of phytoremediation to decontaminate polluted land through microbial enhanced phytoremediation, including the use of plants with respect to ecological and environmental science. The book discusses the potential of microbial-assisted phytoremediation of the contaminant, including heavy metals, pesticides, polyaromatic hydrocarbons, etc., with case studies as examples. Key subjects covered include plant-microbe interaction in contaminated ecosystems, microbe-augmented phytoremediation for improved ecosystem services, and success stories on microbe-assisted phytoremediation of contaminated sites."-- Title details screen.

Contents:

Front cover

Half title

Full title

Copyright

Contents

Contributors

PART 1 - Overview of microbe-assisted phytoremediation

Chapter 1 - Microbe-assisted phytoremediation of environmental contaminants

1.1 Introduction

1.2 Environmental contaminants: Types, nature, and sources

1.3 Impact of environmental contaminants on the environment and human health

1.4 Plant-microbe association/interaction and its role in phytoremediation of environmental contaminants

1.4.1 Phytoremediation of organic and inorganic contaminants

1.4.2 Phytoremediation of wastewater

1.4.3 Role of constructed wetlands in treatment of wastewaters

1.5 Mechanisms involved in the phytoremediation of environmental contaminants

1.5.1 Phytostabilization

1.5.2 Phytovolatilization

1.5.3 Phytodegradation

1.5.4 Phytoaccumulation

1.5.5 Phytoextraction

1.5.6 Rhizoremediation

1.5.6.1 Plant growth promoting rhizobacteria (PGPR)

1.5.6.2 Arbuscular mycorrhizal fungi

1.6 Economic importance of microbe assisted phytoremediation of environmental contaminants

1.7 Conclusion

References

Chapter 2 - Microbial augmented phytoremediation with improved ecosystems services

2.1 Introduction

2.2 Concept of phytoremediation

2.3 Need of augmentation of substances in phytoremediation

2.3.1 Chemical augmentation

2.3.2 Biological augmentation

2.4 Role of microbes in soil ecosystem

2.4.1 Nutrient bioavailability in the soil

2.4.2 Contaminant bioavailability in the soil

2.4.3 Stress tolerance

2.4.3.1 Role of microbes in plants tolerance to drought

2.4.3.2 Role of microbes in plants tolerance to salinity stress

2.4.3.3 Role of microbes in plants tolerance to temperature stress

2.4.4 Biocontrol of pathogens

2.4.5 Microbes enhances overall plant growth.

2.5 Mechanism of microbe-assisted phytoremediation

2.6 Conclusion and future recommendation

Chapter 3 - Role of genetic engineering in microbe-assisted phytoremediation of polluted sites

3.1 Introduction

3.2 Microbe-assisted phytoremediation

3.2.1 Mechanism of phytoremediation using microorganism

3.2.1.1 Direct mechanism

3.2.1.2 Indirect mechanism

3.2.2 Advantages of microbe-assisted phytoremediation

3.3 Genetic engineering of microbes for assisting phytoremediation

3.3.1 Plant growth-promoting bacteria

3.3.2 Rhizospheric bacteria

3.3.3 Endophytic bacteria

3.4 Genetic engineering of plants for microbe-assisted phytoremediation

3.4.1 Engineering plants to enhance growth

3.4.2 Rhizosphere competence

3.4.3 Examining effects of the root targeted modification

3.5 Conclusions and future prospects

Acknowledgments

Chapter 4 - Phytoremediation potential of genetically modified plants

4.1 Introduction

4.2 Heavy metal contamination

4.3 Technologies used in the remediation of HMs

4.3.1 Excavation

4.3.2 Composting

4.3.3 Electrokinetic remediation (EKR)

4.3.4 Bioreactors

4.4 Phytoremediation

4.5 Factors affecting phytoremediation

4.6 Advantages and disadvantages of phytoremediation

4.7 Role of genetic engineering in phytoremediation

4.8 Conclusion and future prospects

PART 2 - Microbe-assisted phytoremediation of inorganic contaminants

chapter 5 - The role of bacteria in metal bioaccumulation and biosorption

5.1 Introduction

5.2 Microbial bioremediation

5.2.1 Biosorption

5.2.1.1 Extracellular adsorption

5.2.1.2 Cell surface adsorption

5.2.2 Bioaccumulation

5.3 Mechanisms underlying microbial metal biosorption and bioaccumulation

5.3.1 Extracellular adsorption.

5.3.2 Cell surface adsorption or complexation

5.3.2.1 Ion exchange mechanism

5.3.2.2 Surface complex mechanism

5.3.2.3 Bioaccumulation/Intracellular adsorption

5.4 Main factors influencing the bioaccumulation efficiency

5.4.1 pH

5.4.2 Temperature

5.4.3 The presence of other metal ions

5.4.4 Physical and chemical pretreatment

5.5 General conclusions and future perspectives

Chapter 6 - Plant-microbe association to improve phytoremediation of heavy metal

6.1 Introduction

6.1.1 Phytoremediation

6.2 Metal resistance and uptake in microorganisms

6.3 Plant growth and metal uptake by plant growth-promoting bacteria (PGPB)

6.3.1 Phytoremediation assisted by soil bacteria

6.3.2 Effects of microorganisms on bioavailability of metals/metalloids and mobilization

6.3.3 Low-molecular-mass organic acids

6.3.4 Release of carboxylic acid anions

6.3.5 By secretion of siderophores

6.3.6 Other trace element chelators

6.3.7 Microbial-induced metal immobilization in phytostabilization

6.4 Effects of microorganisms on nutrients' uptake

6.5 Approach of genetic engineering for improved metal uptake

6.6 Current scenario and future perspective

Chapter 7 - Bacterial-mediated phytoremediation of heavy metals

7.1 Introduction

7.2 Heavy metals effects on living organisms

7.3 Remediation strategies to reduce the HM pollutants

7.3.1 Physicochemical approaches

7.3.2 Biological approaches/bioremediation

7.4 Phytoremediation

7.4.1 Phytoextraction

7.4.2 Phytostabilization

7.4.3 Phytodegradation

7.4.4 Phytovolatilization

7.4.5 Phytofiltration

7.4.6 Rhizodegradation

7.4.7 Phytotransformation

7.5 Microbial remediation

7.5.1 Fungal remediation

7.5.2 Bacterial remediation.

7.6 Mechanisms of bacterial-assisted phytoremediation

7.6.1 Plant growth promotion

7.6.2 Bacterial-assisted biodegradation

7.6.3 Biotransformation of HM

7.6.4 Bioleaching

7.6.5 Mobilization

7.6.6 Solubilization

7.6.7 Volatilization

7.6.8 Sequestration/accumulation

7.7 Case studies of PGP bacteria-assisted phytoremediation

Chapter 8 - Recent advances in microbial-aided phytostabilization of trace element contaminated soils

8.1 Introduction

8.2 Phytostabilization

8.2.1 TE behavior in soils - speciation and mobility

8.2.2 TE uptake and transfer in plant tissues

8.2.3 Plant tolerance to TE toxicity

8.2.4 Plant's selection

8.3 Aided phytostabilization

8.3.1 Effect of microbial amendments on soil properties

8.3.2 Microbial amendment's effect on TE immobilization.

8.3.3 Microbial amendment's effect on plant growth and development

8.3.4 Combined use of amendments

8.4 Future scope

8.4.1 Limitations of aided phytostabilisation

8.4.2 Future scope: Phytomanagement of TE-contaminated soils

8.5 Conclusion

Chapter 9 - Phytoremediation of heavy metal contaminated soil in association with arbuscular mycorrhizal fungi

9.1 Introduction

9.2 Sources of HMs in soil

9.2.1 Natural processes

9.2.2 Anthropogenic processes

9.3 Adverse impacts of HMs

9.3.1 Impacts on the environment

9.3.2 Impact on the soil microbes and its enzymatic activity

9.3.3 Impact on the plants and animals

9.3.4 Impact on human health

9.4 Remediation of metal contaminated soil

9.4.1 Phytoremediation

9.5 Arbuscular mycorrhizal fungi

9.5.1 AMF as mediators of phytoremediation processes

9.5.2 Mechanisms of detoxification involving the association of mycorrhizal fungi and plants.

9.5.3 Mechanisms involving the retention by fungal structures

9.6 Biochemical mechanisms

9.6.1 Chelating agents and enzymes

9.6.2 Gene expression mediated by AMF

9.7 Conclusion

chapter 10 - Role of Pb-solubilizing and plant growth-promoting bacteria in Pb uptake by plants

10.1 Introduction

10.2 Presence and forms of Pb in soil

10.3 Phytoextraction of Pb from contaminated soils

10.4 Microbe-assisted Pb phytoextraction

10.5 Pb solubilization mechanisms by bacteria

10.5.1 Acidolysis

10.5.2 Redoxolysis

10.5.2.1 Bio-reduction

10.5.2.2 Bio-oxidation

10.5.3 Complexolysis

10.5.3.1 Low molecular weight organic acids

10.5.3.2 Siderophores

10.5.3.3 Biosurfactants

10.6 Effect of bacteria on plant growth in Pb-contaminated soils

10.6.1 Production of phytohormones

10.6.1.1 Auxins

10.6.1.2 Cytokinins

10.6.1.3 Gibberellins

10.6.2 Improvement of plant nutrition

10.6.2.1 Phosphorus solubilization

10.6.2.2 Siderophore production

10.6.2.3 Nitrogen fixation

10.6.2.4 Improvement of nutrient uptake

10.6.3 ACCD production

10.6.4 Triggering plant antioxidant system

10.7 Effects of bacterial inoculations on Pb phytoextraction

10.7.1 Effects of PGPBs on Pb phytoextraction

10.7.2 Effects of Pb-solubilizing PGPBs on Pb phytoextraction

10.8 Conclusions

Chapter 11 - Role of Cd-resistant plant growth-promoting rhizobacteria in plant growth promotion and alleviation of the p ...

11.1 Introduction

11.1.1 Plant growth promoting rhizobacteria and their classification

11.1.2 Loading of Cd in the environment

11.1.3 Toxic effects of Cd on plants, humans, and microorganisms

11.2 Cadmium-resistant PGPR

11.3 Cadmium-resistance mechanisms in PGPR

11.3.1 Cd removal by several efflux systems.

11.3.2 Intra/extracellular Cd binding.

Notes:

Includes bibliographical references and index.

Description based on print version record.

Other Format:

Print version: Bauddh, Kuldeep Advances in Microbe-Assisted Phytoremediation of Polluted Sites

ISBN:

9780128235300

0128235306