RESUMO
The genus Entyloma consists of more than 160 species of smut fungi distributed worldwide on dicots, with Apiaceae being one of the main host families. This study aims to clarify the systematics and phylogeny of Entyloma on Eryngium (Apiaceae) with molecular and morphological data. Eleven species from Eryngium are discussed herein. Four of them are described as new taxa: E. carmeli sp. nov. on Eryngium falcatum, E. eryngii-cretici sp. nov. on Eryngium creticum, E. eryngii-maritimi sp. nov. on Eryngium maritimum and E. ho-chunkii sp. nov. on Eryngium yuccifolium. Analysis of the internal transcribed spacer (ITS) region of rDNA is presented and supports the polyphyly of Entyloma on Eryngium.
Assuntos
Basidiomycota/classificação , Eryngium/microbiologia , Doenças das Plantas/microbiologia , Sequência de Bases , Basidiomycota/genética , Basidiomycota/fisiologia , Basidiomycota/ultraestrutura , DNA Fúngico/química , DNA Fúngico/genética , DNA Espaçador Ribossômico/química , DNA Espaçador Ribossômico/genética , Dados de Sequência Molecular , Técnicas de Tipagem Micológica , Filogenia , Análise de Sequência de DNA , Esporos FúngicosRESUMO
The morphology and phylogeny of Anthracoidea on Carex meadii (sect. Paniceae) collected in Illinois, Iowa, Wisconsin, USA, were studied by light microscopy, scanning electron microscopy and LSU rDNA sequence analyses. As a result A. caricis-meadii sp. nov. is described. The fungus differs morphologically from Anthracoidea laxae and A. paniceae, which also occur on sedges from the section Paniceae. Molecular analyses support the placement of the latter species and Anthracoidea caricis-meadii in different phylogenetic lineages. Because of morphological discrepancies in the literature, A. laxae and A. paniceae also are described and illustrated based on re-examination of respective holotype and isotype specimens.
