Pseudomonas: A Quorum Sensing System for Improved Crop Production

  • Bhagwan Rekadwad
  • Pallab Kumar Ghosh


The soil is a unique and ultimate home of the variety of beneficial and biotechnologically important inhabitant microorganisms. These microorganisms comply such a best services especially beneficial agriculture in turn farmers benefitted. Effective management of agriculture ecosystem and proper use of microorganisms such as Pseudomonas and Pseudomonas-like can improve crop health, increase crop yield and productivity, maintain the health of soil over a period of long time span. Bacterium Pseudomonas associated species in the six groups in the Pseudomonadaceae family capable of sensing and generating biomolecules having short and long chains. These include quorum sensing (QS) molecules, hydrolytic enzymes, proteins, siderophores, antibiotics and much many antibacterial and antifungal compounds under various environmental situations such as high or low temperature, high or low salt concentrations, in the presence and absence of contaminants (chemicals, bio-chemicals and hydrocarbons), in response to specific ions and in response to specific signalling molecules. All these characteristics possessed and activities carried out by Pseudomonas have biotechnological applications especially in agriculture. Pseudomonas have major application in crop production by acting as biocontrol agent due to its infection ability, recognising and sending QS molecules, as an antagonistic, as phytopathogens, as plant growth promoting (PGP) agent in the form of individual cell (solid, liquid, spray), in mixed culture and co-culture, as individual or mixed culture inoculums etc. All these characteristics of genus Pseudomonas make a suitable and biotechnologically important cellular model for the variety of application in agriculture and horticulture.


PGPR Plant growth promotion activity AHLs Cell-cell communication Crop yield 



Volatile organic compounds



BR is thankful to University Grants Commission for funds (No.PDFSS-2013-14-ST-MAH-4350_website). PKG is grateful to DST-Science and Engineering Research Board (SERB), New Delhi (India) for financial aid in the form of National Postdoctoral Fellowship (N-PDF, Award letter No.: NPDF/2016/00323 dated. 05.07.2016).


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© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Bhagwan Rekadwad
    • 1
  • Pallab Kumar Ghosh
    • 2
  1. 1.National Centre for Microbial Resource, National Centre for Cell SciencePuneIndia
  2. 2.Microbiology Laboratory, Department of Marine ScienceBallygunge Science College, Calcutta UniversityKolkataIndia

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