Acta Scientific Microbiology (ISSN: 2581-3226)

Review Article Volume 5 Issue 4

Plant Growth Promoting Rhizobacteria as Biofertilizers: Application in Agricultural Sustainability

Amirita Rochlani, Amrita Dalwani, NarinaBanoo Shaikh, Nidahurmain Shaikh, Sarita Sharma* and Meenu Saraf S

Department of Microbiology and Biotechnology, University of School of Sciences, Gujarat University Ahmedabad, Gujarat, India

*Corresponding Author: Sarita Sharma, Department of Microbiology and Biotechnology, University of School of Sciences, Gujarat University Ahmedabad, Gujarat, India.

Received: February 17, 2022; Published: March 03, 2022


The demand for agricultural productivity has increased dramatically as a result of civilization and industrialization. Chemical fertilizers and pesticides increase agricultural yields, but they can degrade soil fertility and quality, posing environmental risks. As a result, the need for environmentally friendly biological agents, such as plant growth promoting rhizobacteria, has skyrocketed in order to improve soil fertility and agricultural operations while also protecting environmental health. The active activity of plant growth promoting rhizobacteria in the rhizosphere, which promotes the growth and development of host plants, has long been known. Plants growing compounds generated by these microbes have a direct or indirect effect on plant physiology, making them valuable agricultural goods in high demand. The plant's resistance power has been increased against biotic and abiotic stress conditions thanks to the PGPR's direct mechanisms (Nitrogen Fixation, Phosphate Solubilization, Phytohormone Production, and Exopolysaccharide Production) and indirect mechanisms (Siderophore Production, Antibiotic Production, HCN Production, Lytic Enzymes Production, Induced Systemic Resistance and Bioremediation). As a result, PGPR as a bio-fertilizer is a good alternative to chemical fertilizers because it is both environmentally friendly and cost-effective. In this review study, we looked at the usage of PGPR as a bio-fertilizer for agriculture sustainability, as well as its direct and indirect effects on plant growth and development.

Keywords:PGPR; Rhizosphere; Biofertilizer; Agriculture Sustainability; Biocontrol Agent


  1. Ahmad F., et al. “Screening of free-living rhizospheric bacteria for their multiple plant growth-promoting activities”. Microbiological Research2 (2008): 173-181.
  2. Ahmed N I A Z., et al. “Rhizobacteria and silicon synergy modulates the growth, nutrition and yield of mungbean under saline soil”. Pakistan Journal of Botany 1 (2020): 9-15.
  3. Aloo, B. N., et al. “Rhizobacteria-based technology for sustainable cropping of potato (Solanum tuberosum)”. Potato Research63.2 (2020): 157-177.
  4. Altaf MA., et al. “Potential role of plant growth promoting rhizobacteria (PGPR) to reduce chemical fertilizer in horticultural crops”. International Journal of Research in Agriculture and Forestry 6 (2019): 21-30.
  5. Atieno M., et al. “Assessment of biofertilizer use for sustainable agriculture in the Great Mekong Region”. Journal of environmental management, 275 (2020): 111300.
  6. Barea J M. “Rhizosphere and mycorrhiza of field crops”. In Biological resource management connecting Science and Policy. Springer, Berlin, Heidelberg (2000): 81-92.
  7. Bashan Y and De-Bashan L E. “How the plant growth-promoting bacterium Azospirillum promotes plant growth—a critical assessment”. Advances in Agronomy108 (2010): 77-136.
  8. Basu, A., et al. “Plant growth promoting rhizobacteria (PGPR) as green bioinoculants: recent developments, constraints, and prospects”. Sustainability3 (2021): 1140.
  9. Bhardwaj D., et al. “Biofertilizers function as a key player in sustainable agriculture by improving soil fertility, plant tolerance, and crop productivity”. Microbial cell factories1 (2014): 1-10.
  10. Bhattacharyya PN and Jha DK. “Plant growth-promoting rhizobacteria (PGPR): emergence in agriculture”. World Journal of Microbiology and Biotechnology4 (2012): 1327-1350.
  11. Dabhi J., et al. “Bioremediation of Heavy Metals: A brand New Methodology to Sustainable Agriculture”. International Journal of Innovative Research in Science, Engineering and Technology6 (2020): 6031-6049.
  12. Elbadry M., et al. “Induction of systemic resistance in faba bean (Vicia faba) to bean yellow mosaic potyvirus (BYMV) via seed bacterization with plant growth promoting rhizobacteria”. Journal of Plant Diseases and Protection 113.6 (2000): 247-251.
  13. Franche C., et al. “Nitrogen-fixing bacteria associated with leguminous and non-leguminous plants”. Plant and Soil1 (2009): 35-59.
  14. Franco-Correa M., et al. “Evaluation of actinomycete strains for key traits related with plant growth promotion and mycorrhiza helping activities”. Applied Soil Ecology3 (2120): 209-217.
  15. Gontia‐Mishra I., et al. “Amelioration of drought tolerance in wheat by the interaction of plant growth‐promoting rhizobacteria”. Plant biology6 (2016): 992-1000.
  16. Goswami D., et al. “Expanding the Horizons for the use of Paenibacillus species as PGPR for sustainable agriculture”. In Bacilli and Agrobiotechnology. Springer, Cham (2016): 281-307.
  17. Gouda S., et al. “Revitalization of plant growth-promoting rhizobacteria for sustainable development in agriculture”. Microbiological Research206 (2018): 131-140.
  18. Gray E J and Smith D L. “Intracellular and extracellular PGPR: commonalities and distinctions in the plant–bacterium signaling processes”. Soil Biology and Biochemistry3 (2005): 395-412.
  19. Habib S H., et al. “Plant growth-promoting rhizobacteria enhance salinity stress tolerance in okra through ROS-scavenging enzymes”. BioMed Research International (2016).
  20. Jha C K and Saraf M. “Plant growth-promoting rhizobacteria (PGPR)”. Journal of Agriculture Research And Development2 (2015): 0108-0119.
  21. Jones DL and Hinsinger P. “The rhizosphere: complex by design”. Plant and Soil1 (2008): 1-6.
  22. Kaur M., et al. “Potential of indigenous strains of Pseudomonas and Bacillus species for the production of plant growth regulators, viz., Auxins, Gibberellins and Cytokinins from carnation and medicinal plants”. Progressive Horticulture1 (2011): 56-60.
  23. Kenneth OC., et al. “Plant growth promoting rhizobacteria (PGPR): a novel agent for sustainable food production”. American Journal of Agricultural and Biological Sciences 14 (2019): 35-54.
  24. Kloepper J W and Schroth M N. “Relationship of in vitro antibiosis of plant growth-promoting rhizobacteria to plant growth and the displacement of root microflora”. Phytopathology10 (1981): 1020-1024.
  25. Mahanty T., et al. “Biofertilizers: a potential approach for sustainable agriculture development”. Environmental Science and Pollution Research4 (2017): 3315-3335.
  26. Mahmood A., et al. “Seed biopriming with plant growth promoting rhizobacteria: a review”. FEMS Microbiology Ecology8 (2016): fiw112.
  27. Manjunath M., et al. “Developing PGPR consortia using novel genera Providencia and Alcaligenes along with cyanobacteria for wheat”. Archives of Agronomy and Soil Science8 (2011): 873-887.
  28. Martínez-Viveros O., et al. “Mechanisms and practical considerations involved in plant growth promotion by rhizobacteria”. Journal of Soil Science and Plant Nutrition3 (2010): 293-319.
  29. Mia M B and Shamsuddin ZH. “Nitrogen Fixation and Transportation by Rhizobacteria”. International Journal of Botany6.3 (2010): 235-242.
  30. Mohanty P., et al. “Insight into the role of PGPR in sustainable agriculture and environment”. Frontiers in Sustainable Food Systems 5 (2021).
  31. Nadeem S M., et al. “Relationship between in vitro characterization and comparative efficacy of plant growth-promoting rhizobacteria for improving cucumber salt tolerance”. Archives of Microbiology4 (2016): 379-387.
  32. Naseem H., et al. “Exopolysaccharides producing rhizobacteria and their role in plant growth and drought tolerance”. Journal of Basic Microbiology12 (2018): 1009-1022.
  33. Prathap M and Kumari B R. “A critical review on plant growth promoting rhizobacteria”. Journal of Plant Pathology and Microbiology4 (2015).
  34. Raj SN., et al. “Plant growth promoting rhizobacteria: potential green alternative for plant productivity”. In PGPR: biocontrol and biofertilization. Springer, Dordrecht (2005): 197-216.
  35. Ramadan E M., et al. “Plant growth promoting rhizobacteria and their potential for biocontrol of phytopathogens”. African Journal of Microbiology Research15 (2016): 486-504.
  36. Rehman F U., et al. “Plant growth promoting rhizobacteria and their mechanisms involved in agricultural crop production: A review”. SunText Review of BioTechnology 2 (2020): 1-6.
  37. Roesti D., et al. “Plant growth stage, fertiliser management and bio-inoculation of arbuscular mycorrhizal fungi and plant growth promoting rhizobacteria affect the rhizobacterial community structure in rain-fed wheat fields”. Soil Biology and Biochemistry5 (2006): 1111-1120.
  38. Romera F J., et al. “Induced systemic resistance (ISR) and Fe deficiency responses in dicot plants”. Frontiers in Plant Science 10 (2019):
  39. Sayyed R Z., et al. “Siderophore producing PGPR for crop nutrition and phytopathogen suppression”. In Bacteria in agrobiology: disease management. Springer, Berlin, Heidelberg (2013): 449-471.
  40. Sharma S., et al. “Biofilm: Used as A Brand-new Technology in Bioremediation”. Vidya; A Journal of Gujarat University2 (2021): 99-116.
  41. Sharma S., et al. “Phytomining of Heavy Metals: A Green Technology to Sustainable Agriculture”. International Journal of Innovative Research in Science, Engineering and Technology6 (2021): 7527-7538.
  42. Sharma S., et al. “Exploring the Biotic Stress Tolerance Potential of Heavy Metal Tolerate Rhizobacteria Isolated from Mines Area and Landfill Site”. Acta Scientific Microbiology 2 (2022): 31-37.
  43. Sharma S., et al. “Isolation of Heavy Metal Tolerant Rhizobacteria from Zawar Mines Area, Udaipur, Rajasthan, India”. Bioscience Biotechnology Research Communication 1 (2020): 233-238.
  44. Sharma Sarita., et al. “Elucidate the Influence of Heavy Metal on Bacterial Growth Isolated from a Mining Location and A Waste Dump: Using their Inducible Mechanism”. Current Trends in Biomedical Engineering and Biosciences 2 (2021): 001-006.
  45. Shokati B and Poudineh Z. “An overview of plant growth promoting rhizobacteria and their influence on essential oils of medicinal plants: a review article”. Iranian Journal of Plant Physiology3 (2017): 2051-2061.
  46. Singh R P and Jha PN. “Plant growth promoting potential of ACC deaminase rhizospheric bacteria isolated from Aerva javanica: a plant adapted to saline environments”. International Journal of Current Microbiology and Applied Sciences 7 (2015): 142-152.
  47. Suhag M. “Potential of biofertilizers to replace chemical fertilizers”. International Journal of Advanced Research in Science, Engineering and Technology 5 (2016): 163-167.
  48. Sureshbabu K., et al. “Amazing multiple function properties of plant growth promoting rhizobacteria in the rhizosphere soil”. International Journal of Current Microbiology and Applied Sciences 2 (2016): 661-683.
  49. Saraf M., et al. “Production and optimization of siderophore from plant growth promoting Rhizobacteria”. Scholar press (2017): 1-85.
  50. Van Loon L C., et al. “Systemic resistance induced by rhizosphere bacteria”. Annual Review of Phytopathology1 (1998): 453-483.
  51. Zablotowicz R M., et al. “Plant growth promotion mediated by bacterial rhizosphere colonizers”. In The rhizosphere and plant growth. Springer, Dordrecht (1991): 315-326.


Citation: Sarita Sharma., et al. “Plant Growth Promoting Rhizobacteria as Biofertilizers: Application in Agricultural Sustainability". Acta Scientific Microbiology 5.4 (2022): 12-21.


Copyright: © 2022 Sarita Sharma., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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