The new truffle genus Babosia and a new species of Stouffera from semiarid grasslands of Hungary
| Autor: | James M. Trappe, Imre Zagyva, Gábor M. Kovács, Pál Vági, Julianna B. Németh, Dániel G. Knapp |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Systematics 0303 health sciences geography geography.geographical_feature_category Truffle biology Ascomycota Physiology Steppe Pezizomycetes Cell Biology General Medicine biology.organism_classification 010603 evolutionary biology 01 natural sciences 030308 mycology & parasitology Ascocarp 03 medical and health sciences Pezizaceae Botany Genetics Taxonomy (biology) Molecular Biology Ecology Evolution Behavior and Systematics |
| Zdroj: | Mycologia. 112:808-818 |
| ISSN: | 1557-2536 0027-5514 |
| Popis: | Truffles with distinct morphological and anatomical features were collected during a study of hypogeous fungi of semiarid sandy grasslands of the Great Hungarian Plain in Hungary, representing the westernmost localities of the Eurasian steppe belt. None of the ascomata were collected near ectomycorrhizal plant species, and none were identified as ectomycorrhizal during previous surveys in the collection area. We studied morphoanatomical characteristics of these truffles with light and scanning electron microscopy and investigated their phylogenetic positions based on analyses of different nuclear loci. The truffles were found to represent two novel lineages that grouped with the Marcelleina-Peziza gerardii clade of the Pezizaceae. One formed a distinct lineage, for which we propose a new genus Babosia with a new species Babosia variospora characterized by diverse spore ornamentation varying even within one ascus. The truffles in the other lineage clustered with the rarely collected American truffle Stouffera longii and share with it similar spore ornamentation and habitat features. However, our material differs from S. longii by geographic origin, the quick and strong coloration of the ascomata to dark gray at cut surface or bruised area, varying spore number in asci, and smaller spore size; thus, we describe it as a new species, Stouffera gilkeyae. |
| Databáze: | OpenAIRE |
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