Pseudomonas fluorescens: Biological Control Aid for Managing Various Plant Diseases: A Review

Author: Sugam Bhetwal, Robin Rijal, Sachitanand Das, Ajay Sharma, Allam Pooja and Anudeep B. Malannavar

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Abstract

Promiscuous usage of chemicals such as fertilizers and pesticides in agriculture sector has affected the environment and the ecosystem severely. Replacement of those hazardous biochemicals is very crucial and the best alternative solution for it is biological control or ‘biocontrol’. Biocontrol is nature’s solution for it is the usage of microorganisms to restrict the pathogen’s growth and reduction in the impact of disease. Plant diseases are a major cause of yield loss all over the globe. Usage of biocontrol agent Pseudomonas fluorescens has been substantial in the suppression of these phytopathogens along with the enhancement of plant growth. Fluorescent pseudomonads are the best choice since they are abundant in the soil rhizosphere and possess the ability to utilize various plant exudates as nutrient. They suppress the disease through various mechanisms such as production of volatile antibiotics and other auxiliary metabolites, siderophores, HCN while also competing with t

Keywords

Biocontrol, Pseudomonas fluorescens, rhizosphere, mechanisms, versatility etc.

Conclusion

Huge progress has been made over the past few years in understanding the root colonization phenomenon by the fluorescent pseudomonads along with the several mechanisms through which it helps in suppressing soil borne phytopathogens. Remarkable advances have been made in the 21st century regarding the biotechnology of P. fluorescens biocontrol agents for the protection of crops. Biocontrol agents require assistance even after their application for proper establishment in the soil rhizosphere whereas chemical pesticides do not require it. So, to ensure biocontrol we must give emphasis to the quality of the biocontrol agent as well as keep an eye on how it performs in the niche while competing with other pathogens. P. fluorescens has a huge prospect in the future as a biocontrol agent and as a plant growth promoter in sustainable management practices. The major limitations of P. fluorescens in biocontrol are its shelf life and its incongruous performance in the field which can be improved

References

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How to cite this article

Bhetwal, S., Rijal, R., Das, S., Sharma, A., Pooja, A. and Malannavar, A.B. (2021). Pseudomonas fluorescens: Biological Control Aid for Managing various Plant Diseases: A Review. Biological Forum – An International Journal, 13(1): 484-494.