Assessment of lux-marked Pseudomonas fluorescens for reporting on organic carbon compounds

Catrin V. Yeomans*, Fiona Porteous, Eric Paterson, Andrew A. Meharg, Kenneth Killham

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


Carbon-flow from plant roots to the rhizosphere provides a major source of nutrients for the soil microbial population. However, quantification of carbon-flow is problematic due to its complex composition. This study investigated the potential of lux-marked Pseudomonas fluorescens to discriminate between forms of carbon present in the rhizosphere by measuring the light response to a range of carbon compounds. Results indicate that bioluminescence of short-term carbon-starved P. fluorescens is dependent upon the source and concentration of carbon. This system, therefore, has the potential to both quantify and qualify organic acids present in rhizodeposits.

Original languageEnglish
Pages (from-to)79-83
Number of pages5
JournalFEMS Microbiology Letters
Issue number1
Publication statusPublished - 01 Jul 1999


  • Bioluminescence
  • C-flow
  • Pseudomonas fluorescens
  • Rhizosphere
  • Starvation

ASJC Scopus subject areas

  • Genetics
  • Molecular Biology
  • Applied Microbiology and Biotechnology
  • Microbiology


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