Universität zu Köln

Kruse, Julia, Doehlemann, Gunther ORCID: 0000-0002-7353-8456, Kemen, Eric ORCID: 0000-0002-7924-116X and Thines, Marco (2017). Asexual and sexual morphs of Moesziomyces revisited. IMA Fungus, 8 (1). S. 117 - 130. LONDON: BMC. ISSN 2210-6359

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Abstract

Yeasts of the now unused asexually typified genus Pseudozyma belong to the smut fungi (Ustilaginales) and are mostly believed to be apathogenic asexual yeasts derived from smut fungi that have lost pathogenicity on plants. However, phylogenetic studies have shown that most Pseudozyma species are phylogenetically close to smut fungi parasitic to plants, suggesting that some of the species might represent adventitious isolations of the yeast morph of otherwise plant pathogenic smut fungi. However, there are some species, such as Moesziomyces aphidis (syn. Pseudozyma aphidis) that are isolated throughout the world and sometimes are also found in clinical samples and do not have a known plant pathogenic sexual morph. In this study, it is revealed by phylogenetic investigations that isolates of the biocontrol agent Moesziomyces aphidis are interspersed with M. bullatus sexual lineages, suggesting conspecificity. This raises doubts regarding the apathogenic nature of asexual morphs previously placed in Pseudozyma, but suggests that there might also be pathogenic sexual morph counterparts for those species known only from asexual morphs. The finding that several additional species currently only known from their yeast morphs are embedded within the genus Moesziomyces, suggests that the yeast morph might play a more dominant role in this genus as compared to other genera of Ustilaginaceae. In addition, phylogenetic reconstructions demonstrated that Moesziomyces bullatus has a narrow host range and that some previously described but not widely used species names should be applied for Moesziomyces on other host genera than Echinochloa.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kruse, Julia UNSPECIFIED UNSPECIFIED UNSPECIFIED Doehlemann, Gunther UNSPECIFIED orcid.org/0000-0002-7353-8456 UNSPECIFIED Kemen, Eric UNSPECIFIED orcid.org/0000-0002-7924-116X UNSPECIFIED Thines, Marco UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-229710
DOI:	10.5598/imafungus.2017.08.01.09
Journal or Publication Title:	IMA Fungus
Volume:	8
Number:	1
Page Range:	S. 117 - 130
Date:	2017
Publisher:	BMC
Place of Publication:	LONDON
ISSN:	2210-6359
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PSEUDOZYMA-APHIDIS; MOLECULAR PHYLOGENY; USTILAGO; SPORISORIUM; INFECTION; YEASTS; FUNGI; GENUS; IDENTIFICATION; DIVERSITY Multiple languages Mycology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22971