From the Tunnels into the Treetops: New Lineages of Black Yeasts from Biofilm in the Stockholm Metro System and Their Relatives among Ant-Associated Fungi in the Chaetothyriales

0464147 - BÚ 2017 RIV US eng J - Článek v odborném periodiku
Réblová, Martina - Hubka, Vít - Thureborn, O. - Lundberg, J. - Sallstedt, T. - Wedin, M. - Ivarsson, M.
From the Tunnels into the Treetops: New Lineages of Black Yeasts from Biofilm in the Stockholm Metro System and Their Relatives among Ant-Associated Fungi in the Chaetothyriales.
PLoS ONE. Roč. 11, č. 10 (2016), s. 1-36, č. článku e0163396. ISSN 1932-6203. E-ISSN 1932-6203
Grant CEP: GA ČR GAP506/12/0038
Grant ostatní: GA MŠk(CZ) CZ.1.05/1.1.00/02.0109
Institucionální podpora: RVO:67985939 ; RVO:61388971
Klíčová slova: Chaetothyriales * molecular phylogenetics * speleothem biofilm
Kód oboru RIV: EF - Botanika; EE - Mikrobiologie, virologie (MBU-M)
Impakt faktor: 2.806, rok: 2016

Isolation of fungi from speleothem biofilm covering bare granite walls in the Kungsträdgården metro station in Stockholm yielded axenic cultures of two distinct black yeast morphotypes. Phylogenetic analyses of DNA sequences from six nuclear loci, ITS, nuc18S and nuc28S rDNA, rpb1, rpb2 and β-tubulin, support their placement in the Chaetothyriales (Ascomycota). They are described as a new genus Bacillicladium with the type species B. lobatum, and a new species Bradymyces graniticola. Bacillicladium is distantly related to the known five chaetothyrialean families and is unique in the Chaetothyriales by variable morphology showing hyphal, meristematic and yeast-like growth in vitro. The genus Bradymyces is placed amidst members of the Trichomeriaceae and is ecologically undefined; it includes an opportunistic animal pathogen while two other species inhabit rock surfaces. Compensatory base change criterion in the ITS2 secondary structure supported delimitation of species in Bradymyces, which manifest a limited number of phenotypic features useful for species recognition.
Trvalý link: http://hdl.handle.net/11104/0265031