title: Rasamsonia pulvericola sp. nov., isolated from house dust.
abstract: In the course of a global survey of the indoor mycobiota, we sampled and analysed settled dust from 87 buildings from 14 countries, using both a modified dilution-to-extinction method and 454-pyrosequencing. Rasamsonia is a recently established genus including thermotolerant or thermophilic species, five of which have been isolated from humans, including the emerging pathogen R. argillacea. A new species, R. pulvericola, was recovered from one residence in Songkhla, Thailand, and is morphologically characterised and compared phylogenetically with other members of the genus. Rasamsonia pulvericola forms a clade with R. brevistipitata and shares morphological characters such as usually biverticillate and never terverticillate conidiophores, and subglobose to ellipsoidal conidia. It has a lower maximum growth temperature and is the first mesophilic species added to the genus. The ITS sequence of R. pulvericola was not detected in the 454-pyrosequencing data for Thailand or other countries, but a similar ITS sequence was detected in Micronesia, probably representing another undescribed Rasamsonia species.
authors.affiliation: Biodiversity (Mycology and Microbiology), Agriculture and Agri-Food Canada, Ottawa, ON, Canada K1A 0C6;
authors.forename: Joey B
authors.initials: JB
authors.lastname: Tanney
authors.affiliation: Biodiversity (Mycology and Microbiology), Agriculture and Agri-Food Canada, Ottawa, ON, Canada K1A 0C6;
authors.forename: Keith A
authors.initials: KA
authors.lastname: Seifert
keywords: Eurotiales; Geosmithia; Talaromyces; Trichocomaceae; environmental metagenomics; indoor moulds