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Journal of Clinical Microbiology, July 1998, p. 2153-2156, Vol. 36, No. 7
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

Differentiation of Rhizomucor Species by Carbon Source Utilization and Isoenzyme Analysis

Mária Vastag, Tamás Papp, Zsolt Kasza, and Csaba Vágvölgyi*

Department of Microbiology, Attila József University, H-6701 Szeged, Hungary

Received 18 December 1997/Returned for modification 11 February 1998/Accepted 2 April 1998

Nineteen Rhizomucor miehei and Rhizomucor pusillus isolates were assayed for their ability to utilize 87 various substrates as a single carbon source. Besides a difference in sucrose utilization, distinctive differences were found in the utilization of glycine, phenylalanine, and beta -alanine. Five isoenzyme systems also proved useful for the determination of markers of distinctive value at a species level. Data were used to obtain information about the genetic polymorphism of these species: a high degree of variability was found among the R. pusillus isolates, whereas the group of R. miehei isolates was more homogeneous genetically.

* Corresponding author. Mailing address: Department of Microbiology, Attila József University, P.O. Box 533, H-6701 Szeged, Hungary. Phone: (36) (62) 455 992. Fax: (36) (62) 432 488. E-mail: csaba{at}bio.u-szeged.hu.

Journal of Clinical Microbiology, July 1998, p. 2153-2156, Vol. 36, No. 7
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.


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