Botryotrichum iranicum sp. nov. and Trematosphaeria magenta sp. nov. as two new species from Iran
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ORIGINAL ARTICLE
Botryotrichum iranicum sp. nov. and Trematosphaeria magenta sp. nov. as two new species from Iran Amin Alidadi 1 & Sepideh Akbari Vala 1 & Gholamreza Salehi Jouzani 1 Received: 28 December 2019 / Revised: 6 November 2020 / Accepted: 9 November 2020 # German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Botryotrichum iranicum (Chaetomiaceae) and Trematosphaeria magenta (Trematosphaeriaceae) are newly described from soils of Hyrcanian forests in the Mazandaran Province, Iran. Both species were distinguished from their closest known species based on multi-locus phylogenetic analysis and morphological characteristics. Botryotrichum iranicum is characterized by sympodially proliferating conidiophores, cylindrical and hyaline conidiogenous cells, hyaline, roughened, solitary conidia with distinctly visible hila and not forming asexual stage and sterile setae. Phylogenetic analyses of ITS, LSU sequences, and sequences part of the beta-tubulin gene support the recognition of this fungus as a new species. Trematosphaeria magenta is characterized by ostiolate pycnidia that are larger than those of closely related other Trematosphaeria species. This species also differs from other species in having longer conidiophores and hyaline and variably shaped, elliptical, ovoid ellipsoidal to allantoid conidia. Phylogenetic analyses inferred from combined ITS, SSU, LSU, and RPB2 sequences indicated that T. magenta is the phylogenetic sister to T. pertusa, type species of Trematosphaeria. Detailed descriptions and illustrations of both new species are provided. Keywords Maximum parsimony . Two new species . Phylogeny . Saprotrophic soil fungi . Taxonomy
Introduction The Sordariales is a large group of fungi within the class Sordariomycetes. This order includes a wide range of saprotrophic fungi known from dung, plant materials, and soil (Cannon and Kirk 2007). The family Chaetomiaceae was established by Winter (1885), and is typified by Chaetomium Kunze. Chaetomiaceae is a large family of Sordariales, and 25 genera are presently placed in this family (Lumbsch and Huhndorf 2010; Liu 2011; Maharachchikumbura et al. 2015; Maharachchikumbura et al. 2016; Wang et al. 2019). Botryotrichum Sacc. & Marchal is one of the members of the Chaetomiaceae that is characterized by setose, branched, macronematous conidiophores, and thick-walled conidia. The Section Editor: Hans-Josef Schroers * Gholamreza Salehi Jouzani [email protected] 1
Microbial Biotechnology Department, Agricultural Research, Education & Extension Organization (AREEO), Agricultural Biotechnology Research Institute of Iran (ABRII), P.O. Box: 31535-1897, Karaj, Iran
sexual state for some of the Botryotrichum species including B. piluliferum (type species) has long been recognized as Chaetomium and, accordingly, a connection between Botryotrichum and Chaetomium was established (Daniels 1961; Wang et al. 2019). Saccardo (1886) firstly described B. piluliferum based on the asexual morph; however, Daniels (1961) retriev
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