Pattersoniomyces tillandsiae gen. et comb. nov.: linking sexual and asexual morphs of the only known smut fungus associated with BromeliaceaeReport as inadecuate




Pattersoniomyces tillandsiae gen. et comb. nov.: linking sexual and asexual morphs of the only known smut fungus associated with Bromeliaceae - Download this document for free, or read online. Document in PDF available to download.

Organisms Diversity and Evolution

pp 1–13

First Online: 03 August 2017Received: 07 June 2017Accepted: 20 July 2017

Abstract

The enigmatic species Ustilago tillandsiae is the only known smut fungus associated with Bromeliaceae. Its generic position is evaluated by morphological, physiological, and molecular phylogenetic analyses using large subunit rDNA sequences. Phylogenetic analyses resolved U. tillandsiae as a member of the Ustilaginales in a sister relationship to the lineage containing Tranzscheliella species. However, U. tillandsiae differs from Tranzscheliella species by the development of sori in flowers, a different structure of sori and a different type of spore ornamentation. Consequently, a new genus Pattersoniomyces is described to accommodate U. tillandsiae. The new combination Pattersoniomyces tillandsiae is substantiated. In the sexual stage teleomorph, this species infects bromeliads: Tillandsia flabellata, Tillandsia leiboldiana, and Tillandsia sp. in Central America between southern Mexico and Costa Rica. The yeast stage anamorph of P. tillandsiae was found associated with the phylloplane of Canistrum improcerum and in water tanks phytotelmata of Vriesea minarum, two bromeliads occurring in northeast and southeast Brazil, respectively. The link between the teleomorph and anamorphic strains is supported by identical sequences of the D1-D2 domains of the large subunit rDNA. Pattersoniomyces represents the tenth endemic smut genus to the Americas, but the only one that occurs in both North and South America, being a truly neotropical genus. The host plant families of Ustilaginales are extended to the Bromeliaceae. As far as we know, Pattersoniomyces represents the single event of a host jump from Cyperaceae or Poaceae to Bromeliaceae, apparently without further species radiation on multiple bromeliad species and genera growing in South America.

KeywordsBasidiomycota Molecular phylogeny Plant pathogens Smut fungi Ustilaginomycotina Yeasts  Download fulltext PDF



Author: Marcin Piątek - Matthias Lutz - Francisca M. P. Sousa - Ana R. O. Santos - Ciro R. Félix - Melissa F. Landell - Fát

Source: https://link.springer.com/







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