Chapter 16 The role of PGPRs in phosphate solubilization and nitrogen fixation in order to promote plant growth parameters under salinity, drought, nutrient deficiency, and heavy metal stresses
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Bahman Fazeli-Nasab
Abstract
Sustainable agriculture is defined as appropriate management of agricultural resources in order to meet the changing needs of human, without harming natural resources. Management using sustainable energy contributes significantly to environmental sustainability, soil fertility, microorganism conservation, and reducing the use of chemical fertilizers. Plant growth-promoting microorganisms (PGPMs) are used in sustainable agriculture in order to deal with biological and nonbiological stresses. Among the performance-enhancing microorganisms in agriculture, are plant growth-promoting rhizobacteria (PGPRs) and plant growth-promoting bacteria (PGPB) including Pseudomonas, Bacillus, Arthrobacter, Enterobacter, Alcaligenes, Burkholderia, Acinetobacter, Rhizobacter, Azotobacter, Azotobacter Azospirillum, and Beijerinckia. PGPRs stimulate plant growth, both directly and indirectly, by modifying the rhizosphere microbial community and producing different substances. PGPRs will be effective in improving growth parameters, nutrient uptake, and photosynthesis under salinity stress by performance of osmotic adjustment, induction of ionic homeostasis and hormonal signaling, release of extracellular molecules, and the use of ACC deaminase producing bacteria. Moreover, PGPRs play a major role in improving growth parameters by coping with drought stress, heat, and heavy metal toxicity (by producing ACC deaminase and enhancing plant hormone activity), nutrient deficiency tolerance (by biological nitrogen fixation and phosphate solubility) and biological stresses (by production and release of nonvolatile antibiotics). In this review, the beneficial effects of PGPRs on plants and sustainable agriculture have been thoroughly investigated.
Abstract
Sustainable agriculture is defined as appropriate management of agricultural resources in order to meet the changing needs of human, without harming natural resources. Management using sustainable energy contributes significantly to environmental sustainability, soil fertility, microorganism conservation, and reducing the use of chemical fertilizers. Plant growth-promoting microorganisms (PGPMs) are used in sustainable agriculture in order to deal with biological and nonbiological stresses. Among the performance-enhancing microorganisms in agriculture, are plant growth-promoting rhizobacteria (PGPRs) and plant growth-promoting bacteria (PGPB) including Pseudomonas, Bacillus, Arthrobacter, Enterobacter, Alcaligenes, Burkholderia, Acinetobacter, Rhizobacter, Azotobacter, Azotobacter Azospirillum, and Beijerinckia. PGPRs stimulate plant growth, both directly and indirectly, by modifying the rhizosphere microbial community and producing different substances. PGPRs will be effective in improving growth parameters, nutrient uptake, and photosynthesis under salinity stress by performance of osmotic adjustment, induction of ionic homeostasis and hormonal signaling, release of extracellular molecules, and the use of ACC deaminase producing bacteria. Moreover, PGPRs play a major role in improving growth parameters by coping with drought stress, heat, and heavy metal toxicity (by producing ACC deaminase and enhancing plant hormone activity), nutrient deficiency tolerance (by biological nitrogen fixation and phosphate solubility) and biological stresses (by production and release of nonvolatile antibiotics). In this review, the beneficial effects of PGPRs on plants and sustainable agriculture have been thoroughly investigated.
Kapitel in diesem Buch
- Frontmatter I
- Contents V
- Chapter 1 Agrochemical industry: a multibillion industry 1
- Chapter 2 Plant protection through agrochemicals and its consequences 25
- Chapter 3 Agrochemicals and their effects on soil microbial population 45
- Chapter 4 Effect of abiotic stresses on plant systems and their mitigation 59
- Chapter 5 Plant pathogenesis and disease control 95
- Chapter 6 Plant defense systems: mechanism of self-protection by plants against pathogens 115
- Chapter 7 Role of Beneficial Microbes for Plant growth Improvement 141
- Chapter 8 Microbial bioproducts for plant growth and protection: trends and prospective 177
- Chapter 9 Nanopesticides: challenges and opportunities 201
- Chapter 10 Assessment of the role of rhizosphere in soil and its relationship with microorganisms and element absorption 225
- Chapter 11 Biosurfactant: an environmentally benign biological agent for sustainable agroecological agriculture 253
- Chapter 12 Bacillus lipopeptide-based antifungal agents for plant disease control 313
- Chapter 13 Use of alkaloids in plant protection 337
- Chapter 14 Biotechnological approaches for plant stress management 353
- Chapter 15 Role of proteins and enzymes in plant disease control 395
- Chapter 16 The role of PGPRs in phosphate solubilization and nitrogen fixation in order to promote plant growth parameters under salinity, drought, nutrient deficiency, and heavy metal stresses 415
- Chapter 17 Impact of endophytic fungi in biotic stress management 447
- Chapter 18 Ecosystem services and ecological role of birds in insect and pest control 463
- Chapter 19 Role of entomopathogenic fungi in biocontrol of insect pests 505
- Chapter 20 Indigenous practices for pest control and marketability of the produce for development of sustainable agriculture 549
- Chapter 21 Role of plant microbiome in crop protection 573
- List of contributing authors 601
- Index 611
Kapitel in diesem Buch
- Frontmatter I
- Contents V
- Chapter 1 Agrochemical industry: a multibillion industry 1
- Chapter 2 Plant protection through agrochemicals and its consequences 25
- Chapter 3 Agrochemicals and their effects on soil microbial population 45
- Chapter 4 Effect of abiotic stresses on plant systems and their mitigation 59
- Chapter 5 Plant pathogenesis and disease control 95
- Chapter 6 Plant defense systems: mechanism of self-protection by plants against pathogens 115
- Chapter 7 Role of Beneficial Microbes for Plant growth Improvement 141
- Chapter 8 Microbial bioproducts for plant growth and protection: trends and prospective 177
- Chapter 9 Nanopesticides: challenges and opportunities 201
- Chapter 10 Assessment of the role of rhizosphere in soil and its relationship with microorganisms and element absorption 225
- Chapter 11 Biosurfactant: an environmentally benign biological agent for sustainable agroecological agriculture 253
- Chapter 12 Bacillus lipopeptide-based antifungal agents for plant disease control 313
- Chapter 13 Use of alkaloids in plant protection 337
- Chapter 14 Biotechnological approaches for plant stress management 353
- Chapter 15 Role of proteins and enzymes in plant disease control 395
- Chapter 16 The role of PGPRs in phosphate solubilization and nitrogen fixation in order to promote plant growth parameters under salinity, drought, nutrient deficiency, and heavy metal stresses 415
- Chapter 17 Impact of endophytic fungi in biotic stress management 447
- Chapter 18 Ecosystem services and ecological role of birds in insect and pest control 463
- Chapter 19 Role of entomopathogenic fungi in biocontrol of insect pests 505
- Chapter 20 Indigenous practices for pest control and marketability of the produce for development of sustainable agriculture 549
- Chapter 21 Role of plant microbiome in crop protection 573
- List of contributing authors 601
- Index 611