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New species of Thielavia, with a molecular study of representative species of the genus

Published online by Cambridge University Press:  24 October 2002

Alberto M. STCHIGEL ,
Lidia FIGUERA ,
José CANO  and
Josep GUARRO
Alberto M. STCHIGEL
Affiliation:
Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/Sant Llorenç 21, 43201 Reus, Spain. E-mail: umb@astor.urv.es
Lidia FIGUERA
Affiliation:
Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/Sant Llorenç 21, 43201 Reus, Spain. E-mail: umb@astor.urv.es
José CANO
Affiliation:
Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/Sant Llorenç 21, 43201 Reus, Spain. E-mail: umb@astor.urv.es
Josep GUARRO
Affiliation:
Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/Sant Llorenç 21, 43201 Reus, Spain. E-mail: umb@astor.urv.es
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Abstract

Two new thermotolerant species of Thielavia were isolated from Easter Island and India, after treating soil samples with 65% (v/v) ethyl alcohol: T. intermedia sp. nov. characterized by large, obovate, dark brown ascospores with a terminal germ pore; and T. arxii sp. nov. distinguished by the large, ellipsoidal to fusiform, brown ascospores with a prominent, lateral to medial germ pore. A phylogenetic study of the ITS-5.8S rDNA sequences of 18 species of Thielavia and Melanocarpus thermophilus was performed. This analysis revealed that T. intermedia could be the ancestor of the remaining species and that all the species tested were genetically closely related.

Type
Research Article
Information
Mycological Research , Volume 106 , Issue 8 , August 2002 , pp. 975 - 983
Copyright
© The British Mycological Society 2002

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