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L-alanine production from glucose fermentation by hyperthermophilic members of the domains bacteria and Archaea: a remnant of an ancestral metabolism?

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  • 1. Laboratoire ORSTOM de Microbiologie des Anaérobies, Université de Provence, Marseille, France.
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    • Ravot G 1
    (1 author)

Applied and Environmental Microbiology, 01 Jul 1996, 62(7):2657-2659
https://doi.org/10.1128/aem.62.7.2657-2659.1996 PMID: 8779604 PMCID: PMC168047

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Abstract 

New members of the order Thermotogales were isolated from nonvolcanically heated geothermal environments, including oil fields and waters of the Great Artesian Basin of Australia, thereby extending their known habitats, previously recognized primarily as volcanic. The hyperthermophilic and thermophilic members of Thermotogales of volcanic origin, together with the recently described nonvolcanic species of this order and three new isolates described in this paper, were all found to produce L-alanine from glucose fermentation, in addition to acetate, lactate, CO2 and H2. L-alanine production from glucose is a trait in common with Pyrococcus furiosus and Thermococcus profundus. We propose that L-alanine production from sugar fermentation be regarded as an ancestral metabolic characteristic.

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Appl Environ Microbiol. 1996 Jul; 62(7): 2657–2659.
PMCID: PMC168047
PMID: 8779604

L-alanine production from glucose fermentation by hyperthermophilic members of the domains bacteria and Archaea: a remnant of an ancestral metabolism?

G Ravot, B Ollivier, M L Fardeau, B K Patel, K T Andrews, M Magot, and J L Garcia
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Abstract

New members of the order Thermotogales were isolated from nonvolcanically heated geothermal environments, including oil fields and waters of the Great Artesian Basin of Australia, thereby extending their known habitats, previously recognized primarily as volcanic. The hyperthermophilic and thermophilic members of Thermotogales of volcanic origin, together with the recently described nonvolcanic species of this order and three new isolates described in this paper, were all found to produce L-alanine from glucose fermentation, in addition to acetate, lactate, CO2 and H2. L-alanine production from glucose is a trait in common with Pyrococcus furiosus and Thermococcus profundus. We propose that L-alanine production from sugar fermentation be regarded as an ancestral metabolic characteristic.

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Selected References

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