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Tuberculina – Thanatophytum/Rhizoctonia crocorum – Helicobasidium: a unique mycoparasitic–phytoparasitic life strategy

Published online by Cambridge University Press:  05 May 2004

Matthias LUTZ
Affiliation:
Universität Tübingen, Botanisches Institut, Lehrstuhl Spezielle Botanik und Mykologie, Auf der Morgenstelle 1, D-72076 Tübingen, Germany. E-mail: matthias.lutz@uni-tuebingen.de
Robert BAUER
Affiliation:
Universität Tübingen, Botanisches Institut, Lehrstuhl Spezielle Botanik und Mykologie, Auf der Morgenstelle 1, D-72076 Tübingen, Germany. E-mail: matthias.lutz@uni-tuebingen.de
Dominik BEGEROW
Affiliation:
Universität Tübingen, Botanisches Institut, Lehrstuhl Spezielle Botanik und Mykologie, Auf der Morgenstelle 1, D-72076 Tübingen, Germany. E-mail: matthias.lutz@uni-tuebingen.de
Franz OBERWINKLER
Affiliation:
Universität Tübingen, Botanisches Institut, Lehrstuhl Spezielle Botanik und Mykologie, Auf der Morgenstelle 1, D-72076 Tübingen, Germany. E-mail: matthias.lutz@uni-tuebingen.de
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Abstract

Tuberculina species are mitosporic parasites of rust fungi. Phylogenetically they belong to the Urediniomycetidae, therefore being closely related to their rust fungal hosts. We reveal by means of molecular analyses, ultrastructural and morphological features, observations in the field, and infection experiments that species of the genus Tuberculina and the violet root rot (Helicobasidium/Rhizoctonia crocorum) are stages of the life-cycle of one holomorph. This opens up new perspectives on parasitic life strategies as the resulting life-cycle is based on interkingdom host jumping between rusts and spermatophytes. In addition, we point at the consequences for any practical application dealing with Helicobasidium as an economically important plant pathogen and Tuberculina as a biological agent in rust control.

Type
Research Article
Copyright
© The British Mycological Society 2004

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Footnotes

Part 213 in the series Studies in Heterobasidiomycetes from the Botanical Institute, University of Tübingen.

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