Microbial Ecology

, Volume 51, Issue 3, pp 257–266 | Cite as

Exploiting New Systems-Based Strategies to Elucidate Plant-Bacterial Interactions in the Rhizosphere

  • P. D. Kiely
  • J. M. Haynes
  • C. H. Higgins
  • A. Franks
  • G. L. Mark
  • J. P. Morrissey
  • F. O'GaraEmail author


The rhizosphere is the site of intense interactions between plant, bacterial, and fungal partners. In plant-bacterial interactions, signal molecules exuded by the plant affect both primary initiation and subsequent behavior of the bacteria in complex beneficial associations such as biocontrol. However, despite this general acceptance that plant-root exudates have an effect on the resident bacterial populations, very little is still known about the influence of these signals on bacterial gene expression and the roles of genes found to have altered expression in plant-microbial interactions. Analysis of the rhizospheric communities incorporating both established techniques, and recently developed “omic technologies” can now facilitate investigations into the molecular basis underpinning the establishment of beneficial plant-microbial interactomes in the rhizosphere. The understanding of these signaling processes, and the functions they regulate, is fundamental to understanding the basis of beneficial microbial–plant interactions, to overcoming existing limitations, and to designing improved strategies for the development of novel Pseudomonas biocontrol strains.


Green Fluorescent Protein Microbe Rhizobium Omic Technology Functional Genomic Analysis 
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.



We acknowledge Abdelhamid Abbas, Maeve Cullinane, Max Dow, and Pat Higgins for useful advice and discussions. We acknowledge the IMPACT, ECO-SAFE GM-RHIZO, and PSEUDOMICS EU-consortia for fruitful discussion and valuable scientific comment. Research in the authors' laboratories is supported in part by grants awarded by the European Union: BIO4-CT96-0027 (IMPACT 11), QLK3-CT-2000-31759 (ECO-SAFE) QLK3-2001-00101 (GM-RHIZO), QLRT-2001-00914 (PSEUDOMICS); The Higher Education Authority of Ireland (PRTI2, PRTI3); Enterprise Ireland, SC/02/517, SC/02/0420, and Science Foundation of Ireland (04/BR/B0597; 02/IN.1/B1261).


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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • P. D. Kiely
    • 1
  • J. M. Haynes
    • 1
  • C. H. Higgins
    • 1
  • A. Franks
    • 1
  • G. L. Mark
    • 1
  • J. P. Morrissey
    • 1
  • F. O'Gara
    • 1
    Email author
  1. 1.Biomerit Research Centre, Department of MicrobiologyNational University of Ireland (UCC)CorkIreland

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