Revista Iberoamericana de Micología最新文献

筛选

英文中文

A new endophytic species of Microthecium (Melanosporales, Sordariomycetes, Pezizomycotina, Ascomycota) from Mallorca (Balearic Islands, Spain) 来自马略卡岛（西班牙巴利阿里群岛）的一种新的内生微孢子菌（Melanosporales, Sordariomycetes, Pezizomycotina, Ascomycota）。

Revista Iberoamericana de Micología Pub Date : 2024-01-04 DOI: 10.1016/j.riam.2023.10.002

Alberto M. Stchigel, José F. Cano-Lira, Ángel Pintos-Amengual

{"title":"A new endophytic species of Microthecium (Melanosporales, Sordariomycetes, Pezizomycotina, Ascomycota) from Mallorca (Balearic Islands, Spain)","authors":"Alberto M. Stchigel, José F. Cano-Lira, Ángel Pintos-Amengual","doi":"10.1016/j.riam.2023.10.002","DOIUrl":"https://doi.org/10.1016/j.riam.2023.10.002","url":null,"abstract":"<h3>Background</h3><p>The genus <em>Microthecium</em> contains 31 species worldwide distributed. Most of them are saprobic on soil and plant debris, but a few have been reported as mycoparasites on hypocrealean fungi. By contrast, this genus has never been reported as phytopathogenic, nor endophytic.</p><h3>Aims</h3><p>To isolate and identify endophytic fungi from Mediterranean herbaceous plants and trees in order to contribute to the knowledge of the hosts and their geographical location. The present work has been focused on the study of endophytic fungi of hawthorn (<em>Crataegus monogyna</em>).</p><h3>Methods</h3><p>The following steps were taken: i, isolation of the fungal strain from living stems of <em>C. monogyna</em>; ii, cultural and micro-morphological study, and iii, sequence comparison of different genetic markers by BLAST search with sequences deposited in GenBank.</p><h3>Results</h3><p>At the present work we describe a new species of the genus, <em>Microthecium pleomorphosporum</em>, isolated from living stems of <em>C. monogyna</em> in Mallorca (Balearic Islands, Spain). This fungus is characterized by the production of non-ostiolate perithecia and two sorts of ascospores (some smooth-walled, others delicately reticulated) bearing a germ pore at each end which are frequently ornamented by a surrounding donut-like structures, and a phialidic asexual morph and bulbils. The morphologically closest related species is <em>Microthecium tenuissimum</em>, which has bigger ascospores and lacks asexual reproduction. Phylogenetically, <em>M pleomorphosporum</em> is close-related to other species of the genus, although no genetic marker that discriminates this new species from other phylogenetically closer ones could be elucidated as a gold standard.</p><h3>Conclusions</h3><p><em>M. pleomorphosporum</em>, order Melanosporales, is reported here as the first endophytic species of <em>C. monogyna</em>.</p>","PeriodicalId":510901,"journal":{"name":"Revista Iberoamericana de Micología","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139096740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0