Tuber iranicum, sp. nov., a truffle species belonging to the Excavatum clade
Autor: | Federico Puliga, David Baldo, Mirko Illice, Mirco Iotti, Alessandra Zambonelli |
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Přispěvatelé: | Puliga F., Illice M., Iotti M., Baldo D., Zambonelli A. |
Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
0106 biological sciences
Peridium Physiology hypogeous fungi Biology Iran 010603 evolutionary biology 01 natural sciences 030308 mycology & parasitology 03 medical and health sciences Ascomycota Botany Genetics Internal transcribed spacer Clade Molecular Biology Ecology Evolution Behavior and Systematics 0303 health sciences LSU Truffle 1 new taxon Cell Biology General Medicine biology.organism_classification ITS Ascocarp Taxon Genus Tuber |
Popis: | Truffles in the genus Tuber are hypogeus fungi that have a worldwide distribution. Despite this, knowledge about their diversity in the Middle East is very limited. In recent years, large quantities of truffles have been imported from Iran for being sold in Italy. While analyzing certain commercial batches of T. aestivum from Iran, we found some ascomata that resembled T. excavatum but had macro- and micromorphological features that were distinct from this species. They were subglobose, or depressed to slightly irregular, with a conspicuous basal cavity, grayish brown, brown, or pinkish gray, with a minutely papillose peridium. The gleba was pinkish gray in youth, brown at maturity, marbled with cream branched veins. Ascospores were broadly ellipsoid, with an irregular reticulum and distinctive long crests along the longitudinal axis, up to 9 µm high. Analysis of internal transcribed spacer (ITS) and large subunit (LSU) rDNA sequences showed that these specimens form a monphyletic and well-supported taxon within the Excavatum clade. Morphological and molecular analyses supported the proposal of the new species T. iranicum. |
Databáze: | OpenAIRE |
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