Role of Plant Growth Promoting Rhizosphere (PGPR) on Molecular Mechanisms Transporters Under Heavy Metal Stress

2020 ◽  
pp. 71-84
Keyword(s):  
Heavy Metals ◽  
Plant Growth ◽  
Molecular Mechanisms ◽  
Heavy Metal Stress ◽  
Molecular Transporters ◽  
Removal Of Heavy Metals ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Soil And Water

In this chapter, the authors discuss the molecular mechanisms transporters used for the removal of heavy metals contaminants from soil and water. The bioremediation method used for soil remediation render the land useless as a medium for plant growth as they also remove other contaminants that harm microbes and maintaining soil fertility with the help generating heat shok protein and metallothiones and also molecular transporters.

Newer Approaches in Phytoremediation

2021 ◽  
pp. 1785-1808
Author(s):  
Khushboo Chaudhary ◽  
Suphiya Khan ◽  
Pankaj Kumar Saraswat
Keyword(s):  
Heavy Metals ◽  
Plant Growth ◽  
Chelating Agents ◽  
Plant Growth Promoting Bacteria ◽  
Metals Removal ◽  
Pollution Problem ◽  
The World ◽  
Plant Growth Promoting ◽  
Growth Promoting

The heavy metal pollution problem is all over the world. Plant-growth-promoting bacteria (PGPB) has transformed heavy metals present in the soil, which removes and minimizes their toxic effects. This chapter highlights the role of plant-growth-promoting bacteria, chelating agents, and nanoparticles for remediation of heavy metals; their mechanism of action; and their applications approach of hyperaccumulation. Therefore, this chapter focuses on the mechanisms by which microorganisms, chelating agents, and nanoparticles can mobilize or immobilize metals in soils and the nano-phytoremediation strategies are addressed for the improvement of phytoextraction as an innovative process for enhancement of heavy metals removal from soil.

Role of Plant Growth Promoting Bacteria (PGPB) for Bioremediation of Heavy Metals

2018 ◽  
pp. 104-125 ◽  
Author(s):  
Khushboo Chaudhary ◽  
Suphiya Khan
Keyword(s):  
Heavy Metals ◽  
Plant Growth ◽  
Toxic Effects ◽  
Plant Growth Promoting Bacteria ◽  
Cellular Mechanisms ◽  
Metals Removal ◽  
Pollution Problem ◽  
Plant Growth Promoting ◽  
Growth Promoting

The heavy metal pollution problem is all over the world. Plant growth promoting bacteria (PGPB) has transformed heavy metals present in the soil, which removes and minimizes their toxic effects. This chapter highlights the role of PGPB for remediation of heavy metals, their mechanism of action, and their applications approach of hyperaccumulation. Further, it also highlights the role of uptake and detoxification of metals by cellular mechanisms which facilitate the bioremediation of heavy metals from contaminated areas. Bacteria may also enhance nutrient uptake, increasing plant growth and defenses while diminish heavy metals intake and their toxic effects. Therefore, this chapter focuses on the mechanisms by which microorganisms can mobilize or immobilize metals in soils and the bioremediation strategies are addressed for the improvement of phytoextraction as an innovative process for enhancement of heavy metals removal from soil.

Newer Approaches in Phytoremediation

2020 ◽  
pp. 145-178
Keyword(s):  
Heavy Metals ◽  
Plant Growth ◽  
Chelating Agents ◽  
Plant Growth Promoting Bacteria ◽  
Metals Removal ◽  
Pollution Problem ◽  
The World ◽  
Plant Growth Promoting ◽  
Growth Promoting

The heavy metal pollution problem is all over the world. Plant-growth-promoting bacteria (PGPB) has transformed heavy metals present in the soil, which removes and minimizes their toxic effects. This chapter highlights the role of plant-growth-promoting bacteria, chelating agents, and nanoparticles for remediation of heavy metals; their mechanism of action; and their applications approach of hyperaccumulation. Therefore, this chapter focuses on the mechanisms by which microorganisms, chelating agents, and nanoparticles can mobilize or immobilize metals in soils and the nano-phytoremediation strategies are addressed for the improvement of phytoextraction as an innovative process for enhancement of heavy metals removal from soil.

Understanding the molecular mechanisms for the enhanced phytoremediation of heavy metals through plant growth promoting rhizobacteria: A review

2020 ◽  
Vol 254 ◽  
pp. 109779 ◽  
Author(s):  
Srinivas Ravi Manoj ◽  
Chinnannan Karthik ◽  
Krishna Kadirvelu ◽  
Padikasan Indra Arulselvi ◽  
Thangavel Shanmugasundaram ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Plant Growth ◽  
Molecular Mechanisms ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals ROLE OF RHIZOBACTERIA IN PHYTOREMEDIATION OF HEAVY METALS

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
N Nadeem ◽  
R Asif ◽  
S Ayyub ◽  
S Salman ◽  
F Shafique ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Plant Growth ◽  
Soil Fertility ◽  
Plant Growth Promoting Rhizobacteria ◽  
Heavy Metal Accumulation ◽  
Plant Tolerance ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Nickel Lead

Rhizobacteria, a plant growth promoting rhizobacteria (PGPR) as beneficial microorganism which helps in defense from abiotic and abiotic stresses, colonizes in rhizosphere and played a major role in promoting plant growth and also provides enhance soil fertility. In the highly contaminated soil, the content of metal exceeds the limits of plant tolerance. It is also possible that treatment of plant with PGPR, here increasing the biomass of plant, stabilizing and the remediation of metal polluted soil. The use of rhizobacteria plays and important role in increasing the tolerance of plant towards toxic effects of heavy metals like arsenic, sulphur, mercury, chromium, cadmium, nickel, lead and copper etc. Heavy metal accumulation results in deterioration of soil fertility while PGPR helps to restore soil fertility. The process of phytoremediation has been proved to be the best way to remediate heavy metals from soil. The use of rhizobacteria with plants provides highly efficiency phytoremediation. However, there is still need to understanding the concept of microbial ecological study in rhizosphere and mechanism of detoxification of heavy metals form rhizosphere.

Unraveling the role of plant growth-promoting rhizobacteria in the alleviation of arsenic phytotoxicity: A review

2021 ◽  
pp. 126809
Author(s):  
Sayanta Mondal ◽  
Krishnendu Pramanik ◽  
Sudip Kumar Ghosh ◽  
Priyanka Pal ◽  
Tanushree Mondal ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Plant-Growth-Promoting Rhizobacteria Emerging as an Effective Bioinoculant to Improve the Growth, Production and Stress Tolerance of Vegetable Crops

2021 ◽  
Vol 22 (22) ◽  
pp. 12245
Author(s):  
Manoj Kumar ◽  
Ved Prakash Giri ◽  
Shipra Pandey ◽  
Anmol Gupta ◽  
Manish Kumar Patel ◽  
...  
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Insect Pests ◽  
Vegetable Consumption ◽  
Plant Growth Promoting Rhizobacteria ◽  
Vegetable Crops ◽  
Vegetable Crop ◽  
Plant Growth Promoting ◽  
Growth Promoting

Vegetable cultivation is a promising economic activity, and vegetable consumption is important for human health due to the high nutritional content of vegetables. Vegetables are rich in vitamins, minerals, dietary fiber, and several phytochemical compounds. However, the production of vegetables is insufficient to meet the demand of the ever-increasing population. Plant-growth-promoting rhizobacteria (PGPR) facilitate the growth and production of vegetable crops by acquiring nutrients, producing phytohormones, and protecting them from various detrimental effects. In this review, we highlight well-developed and cutting-edge findings focusing on the role of a PGPR-based bioinoculant formulation in enhancing vegetable crop production. We also discuss the role of PGPR in promoting vegetable crop growth and resisting the adverse effects arising from various abiotic (drought, salinity, heat, heavy metals) and biotic (fungi, bacteria, nematodes, and insect pests) stresses.

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