Isolation and taxonomic study of a new canthaxanthin-containing bacterium, Gordonia jacobaea MV-1 sp. nov

Authors

  • Trinidad de Miguel Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Santiago de Compostela, Spain
  • Carmen Sieiro Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Santiago de Compostela, Spain
  • Margarita Poza Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Santiago de Compostela, Spain
  • Tomás G. Villa Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Santiago de Compostela, Spain

Abstract

This article describes the isolation and taxonomic study of a coryneform isolate of a new Gordonia species (G. jacobaea), strain MV-1, which accumulates several carotenoids, including the ketocarotenoid trans-canthaxanthin. Identification of this new isolate by morphobiochemical methods did not allow unambiguous taxon assignment, but sequencing of the 16S rRNA gene clearly pointed to the genus Gordonia, Gordonia sputi being the closest fit. Differences in certain transversions/ transitions in otherwise very well-conserved sequences of the described Gordonia species supported the proposal of this new taxon. The fact that both the best growth and best pigmentation were obtained with glucose, an inexpensive carbon source and at an industrially suitable temperature, suggests that this new bacterial strain may have good potential for the industrial production of canthaxanthin.

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Published

2010-03-15

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Section

Research Articles