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

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

doi:10.1016/S0378-1097(99)00222-0

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

School of Biological Sciences

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	79-83
Number of pages	5
Journal	FEMS Microbiology Letters
Volume	176
Issue number	1
DOIs	https://doi.org/10.1016/S0378-1097(99)00222-0
Publication status	Published - 01 Jul 1999

Keywords

Bioluminescence
C-flow
Pseudomonas fluorescens
Rhizosphere
Starvation

ASJC Scopus subject areas

Genetics
Molecular Biology
Applied Microbiology and Biotechnology
Microbiology

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10.1016/S0378-1097(99)00222-0

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title = "Assessment of lux-marked Pseudomonas fluorescens for reporting on organic carbon compounds",

abstract = "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.",

keywords = "Bioluminescence, C-flow, Pseudomonas fluorescens, Rhizosphere, Starvation",

author = "Yeomans, {Catrin V.} and Fiona Porteous and Eric Paterson and Meharg, {Andrew A.} and Kenneth Killham",

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AU - Yeomans, Catrin V.

AU - Porteous, Fiona

AU - Paterson, Eric

AU - Meharg, Andrew A.

AU - Killham, Kenneth

PY - 1999/7/1

Y1 - 1999/7/1

N2 - 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.

AB - 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.

KW - Bioluminescence

KW - C-flow

KW - Pseudomonas fluorescens

KW - Rhizosphere

KW - Starvation

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