Transactions Among Microorganisms and Plant in the Composite Rhizosphere Habitat

  • Sakshi Tewari
  • Naveen Kumar Arora


Root exudates selectively influence the growth of microorganisms that colonize the rhizosphere by altering the chemistry of soil in the vicinity of the plant roots and by serving as signal molecules and selective growth substrates for soil microorganisms. Microbial signals to plants influence the cell metabolism and plant nutrition and growth. It is increasingly apparent that, in nature, microbes function less as individuals and more as coherent groups that are able to inhabit multiple ecological niches. Because of current public concerns about the side effects of agrochemicals, there is an increasing interest in improving the understanding of cooperative activities among plants and rhizosphere microbial populations. This review provides a better understanding of processes such as stimulation of microbial activity by root exudates, competition between microorganisms and roots for nutrients, and molecular talk between roots and microorganisms and among microorganisms in the rhizosphere. Various positive plant–microbe–microbe interactions along with their multifaceted communications are highlighted that should be studied in an integrated manner for the development of sustainable agriculture with global applicability.


Root Exudate Indole Acetic Acid Quorum Sense Root Colonization Shikimic Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



 Authors are grateful to Vice Chancellor Babasaheb Bhimrao Ambedkar University, Lucknow, India, for their support.


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© Springer India 2013

Authors and Affiliations

  1. 1.Department of Environmental Microbiology, School of Environmental ScienceBBA UniversityLucknowIndia

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