Antonie van Leeuwenhoek

, Volume 93, Issue 3, pp 305–313

Streptomyces sudanensis sp. nov., a new pathogen isolated from patients with actinomycetoma

Authors

  • Erika T. Quintana
    • School of BiologyUniversity of Newcastle
    • Instituto Politécnico Nacional (IPN), Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD)
  • Katarzyna Wierzbicka
    • Ludwik Hirszfeld Institute of Immunology and Experimental TherapyPolish Academy of Sciences
  • Pawel Mackiewicz
    • Faculty of Biotechnology, Department of GenomicsUniversity of Wrocław
  • Abdalla Osman
    • Faculty of Medicine, Mycetoma Research CentreUniversity of Khartoum
  • Ahmed H. Fahal
    • Faculty of Medicine, Mycetoma Research CentreUniversity of Khartoum
  • Mohamed E. Hamid
    • Faculty of Veterinary Science, Department of Preventive Medicine and Public HealthUniversity of Khartoum
  • Jolanta Zakrzewska-Czerwinska
    • Ludwik Hirszfeld Institute of Immunology and Experimental TherapyPolish Academy of Sciences
  • Luis A. Maldonado
    • School of BiologyUniversity of Newcastle
    • Instituto de Ciencias del Mar y LimnologíaUniversidad Nacional Autónoma de México (UNAM)
    • School of BiologyUniversity of Newcastle
Original Paper

DOI: 10.1007/s10482-007-9205-z

Cite this article as:
Quintana, E.T., Wierzbicka, K., Mackiewicz, P. et al. Antonie van Leeuwenhoek (2008) 93: 305. doi:10.1007/s10482-007-9205-z

Abstract

Nine strains isolated from mycetoma patients and received as Streptomyces somaliensis were the subject of a polyphasic taxonomic study. The organisms shared chemical markers consistent with their classification in the genus Streptomyces and formed two distinct monophyletic subclades in the Streptomyces 16S rRNA gene tree. The first subclade contained four organisms, including the type strain of S. somaliensis, and the second clade the remaining five strains which had almost identical 16S rRNA sequences. Members of the two subclades were sharply separated using DNA:DNA relatedness and phenotypic data which also showed that the subclade 1 strains formed an heterogeneous group. In contrast, the subclade 2 strains were assigned to a single genomic species and had identical phenotypic profiles. It is evident from these data that the subclade 2 strains should be recognised as a new species of Streptomyces. The name proposed for this new species is Streptomyces sudanensis sp. nov. The type strain is SD 504T (DSM = 41923T = NRRL B-24575T).

Keywords

MycetomaPolyphasic taxonomyStreptomyces

Copyright information

© Springer Science+Business Media B.V. 2007