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Title: The metabolism of gaseous n-alkanes by bacteria
Author: Stephens, Gillian Mary
ISNI:       0000 0001 3480 3918
Awarding Body: University of Warwick
Current Institution: University of Warwick
Date of Award: 1983
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Ethane-and propane-utilising bacteria were Isolated from river-and pond-water samples and three of the strains Isolated were selected for detailed study. All three strains were tentatively identified as Arthrobacter spp. and differed in the ability to utilize potential intermediates of propane oxidation. Strain B3aP could not grow on propan-2-ol or acetone and was unable to oxidize acetone after growth on propane. Strain Br103 grew slowly on propan-2—ol and acetone but could not oxidize acetone after growth on propane. It was concluded that these two strains oxidized propane exclusively via the terminal oxidation pathway, i.e. via propanoate. Strain B2 could grow rapidly on propan-2—ol and acetone and was able to oxidise acetone rapidly sifter growth on propane. Intermediates of the terminal oxidation pathway were also oxidized rapidly and it was concluded that strain B2 oxidized propane via both the terminal and 3ubterminal oxidation pathways, i.e. via propanoate and via acetone. It was found that strains oxidizing propane exclusively via the terminal oxidation pathway excreted acetone during growth on propane whilst those strains that utilized the subterminal oxidation pathway did not excrete acetone. It is argued that propan-2—ol la produced fortuitously during propane oxidation and that an ability to oxidize propan-2-ol and acetone is not a prerequisite of propane utilization.
Supervisor: Not available Sponsor: Science and Engineering Research Council
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: QD Chemistry ; QR Microbiology