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Journal of Clinical Microbiology, November 1999, p. 3586-3589, Vol. 37, No. 11
Service de Microbiologie,
Received 22 March 1999/Returned for modification 10 June
1999/Accepted 28 July 1999
Fusarium spp. have emerged as major opportunistic
fungal agents. Since new antifungal agents exhibit variable activity
against Fusarium isolates depending on the species, rapid
identification at the species level is required. Conventional culture
methods are difficult, fastidious, and sometimes inconclusive. In this work, we sequenced a 440-bp fragment encoding the 28S rRNA from 33 Fusarium isolates belonging to six Fusarium
species associated with human infections. The data were then analyzed
by the neighbor-joining method. By using distance matrix analysis and
constructing the phylogram, we could easily distinguish the different
species for all but one isolate. The method also allowed
differentiation between the closely related genera
Acremonium and Cylindrocarpon. In contrast to
the case with conventional methods, the results could be obtained within 48 h from a 3-day culture and are independent of mycologist experience, making this method rapid and reliable for identification of
Fusarium species isolated from patients.
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Identification of Fusarium Species
Involved in Human Infections by 28S rRNA Gene Sequencing
*
Corresponding author. Mailing address: Service de
Parasitologie-Mycologie, CHU Amiens, 80054 Amiens Cédex 1, France. Phone: 33-3-22-45-59-75. Fax: 33-3-22-45-56-53. E-mail:
chennequin{at}yahoo.com.
Journal of Clinical Microbiology, November 1999, p. 3586-3589, Vol. 37, No. 11
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
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