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Systematic appraisal of species complexes within Cylindrocladiella

Published online by Cambridge University Press:  01 March 1998

D. VICTOR ,
P. W. CROUS ,
B. J. H. JANSE ,
W. H. VAN ZYL ,
M. J. WINGFIELD  and
A. C. ALFENAS
D. VICTOR
Affiliation:
Department of Microbiology, University of Stellenbosch, P. Bag X1, Matieland 7602, South Africa
P. W. CROUS
Affiliation:
Department Plant Pathology, University of Stellenbosch, P. Bag X1, Matieland 7602, South Africa
B. J. H. JANSE
Affiliation:
Department of Microbiology, University of Stellenbosch, P. Bag X1, Matieland 7602, South Africa
W. H. VAN ZYL
Affiliation:
Department of Microbiology, University of Stellenbosch, P. Bag X1, Matieland 7602, South Africa
M. J. WINGFIELD
Affiliation:
Department of Microbiology and Biochemistry, University of the Orange Free State, P.O. Box 339, Bloemfontein 9300, South Africa
A. C. ALFENAS
Affiliation:
Departamento de Fitopatologia, Universidade Federal de Viçosa, MG, Brasil
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Abstract

Twenty-four strains of six Cylindrocladiella spp. were compared with respect to their morphology, nuclear ribosomal DNA (nuclear rDNA) polymorphisms, and restriction fragment length polymorphisms of A+T-rich DNA (AT-DNA). Two distinct DNA profiles were observed for the ten strains of C. camelliae/peruviana-complex studied. One profile corresponded with the type strain of C. peruviana, which was earlier regarded as a synonym of C. camelliae. Based on Southern analyses and AT-DNA, C. parva, C. elegans and C. lageniformis were confirmed to be distinct species with little intraspecific variation. Although C. infestans was shown to have some variation among the four strains studied, they could not clearly be distinguished as separate taxa. Based on general morphology, nuclear rDNA and AT-DNA polymorphisms, seven species of Cylindrocladiella are recognized.

Type
Research Article
Information
Mycological Research , Volume 102 , Issue 3 , March 1998 , pp. 273 - 279
Copyright
The British Mycological Society 1998

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