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Applied and Environmental Microbiology, January 1999, p. 221-230, Vol. 65, No. 1
Laboratoire d'Océanographie et de
Biogéochimie, UMR 6535, Centre d'Océanologie de Marseille,
OSU, Campus de Luminy, 13288 Marseille,
France,1 and
CSIRO Division of
Marine Research, Hobart, Tasmania 7001, Australia2
Received 4 May 1998/Accepted 6 October 1998
This paper describes the production of isoprenoid wax esters during
the aerobic degradation of 6,10,14-trimethylpentadecan-2-one and phytol by four bacteria (Acinetobacter sp. strain PHY9,
Pseudomonas nautica [IP85/617],
Marinobacter sp. strain CAB [DSMZ 11874], and
Marinobacter hydrocarbonoclasticus [ATCC 49840])
isolated from the marine environment. Different pathways are
proposed to explain the formation of these compounds. In the case
of 6,10,14-trimethylpentadecan-2-one, these esters result from the
condensation of some acidic and alcoholic metabolites produced during
the biodegradation, while phytol constitutes the alcohol moiety of most
of the esters produced during growth on this isoprenoid alcohol. The
amount of these esters formed increased considerably in N-limited
cultures, in which the ammonium concentration corresponds to conditions
often found in marine sediments. This suggests that the bacterial
formation of isoprenoid wax esters might be favored in such
environments. Although conflicting evidence exists regarding the
stability of these esters in sediments, it seems likely that, under
some conditions, bacterial esterification can enhance the preservation
potential of labile compounds such as phytol.
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Production of Wax Esters during Aerobic Growth of
Marine Bacteria on Isoprenoid Compounds
*
Corresponding author. Mailing address: Laboratoire
d'Océanographie et de Biogéochimie, UMR 6535, Centre
d'Océanologie de Marseille, OSU, Campus de Luminy,
case 901, 13288 Marseille, France. Phone: 33 4 91 82 96 23. Fax:
33 4 91 82 65 48. E-mail: rontani{at}com.univ-mrs.fr.
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