Trichocomaceae

Abstract: DNA sequences were determined for beta tubulin (BT2), calmodulin (CF), ITS and lsu rDNA (ID) and RNA polymerase II (RPB2) from ca. 460 Aspergillus isolates. RPB2 and rDNA sequences were combined and analyzed to determine relationships in the genus and in the family Trichocomaceae. Eupenicillium species form a statistically supported clade with origins among the Aspergillus clades. A. crystallinus, A. malodoratus and H. paradoxus are members of the Eupenicillium clade. A. zonatus, A. clavatoflvus and W. spinulosa occur in a clade along with Hamigera sp. Other than these exceptional species, Aspergillus species and sections occur on three strongly supported clades that descend from a polytomy. Section Versicolores as a monophyletic group includes only A. versicolor and A. sydowii and is superfluous. The other sections were retained but modified. All four loci were used in genealogical concordance analysis of species boundaries. Fennellia flavipes and F. nivea are not conspecific with their supposed anamorph...

Abstract: The typification and citation of the generic name Penicillium- Dierckx' contribution to the taxonomy of Penicillium- Typification of Aspergillus and related teleomorph genera- Typification of the Species of Aspergillus and associated teleomorphs- Infrageneric taxa of Aspergillus- The penicillus- Descriptive terminology of the conidiogenous structures in Aspergillus and Penicillium- The naming of chemical variants in Penicillium and Aspergillus- Media and incubation conditions for Penicillium and Aspergillus taxonomy- Evaluation of some morphological features of asymmetric Penicillia on different media- Bridging the gap: Taxonomists and food mycologists- The closely related species of subgenus Penicillium - a phylogenic exploration- A revised key to Penicillium Subgenus Penicillium- Revision of recently described Penicillium taxa- The genus Coremium and the synnematous Penicillia- Inherent problems in Penicillium taxonomy- A new taxonomic scheme for Penicillium anamorphs- Aspergillus: an overview- The theory and practise of distinguishing species of the Aspergillus flavus group- Similarities between the genera Stilbothamnium and Aspergillus- Classification of fungi through nucleic acid relatedness- Ecological adaptation and classification in Aspergillus and Penicillium- Serological approaches for identification of Aspergillus and Penicillium species- An integrated approach to Penicillium systematics- Profiles of primary and secondary metabolites of value in classification of Penicillium viridicatum and related species- Classification of asymmetric Penicillia using expressions of differentiation- Taxonomic implication of hybridization of Penicillium protoplasts- Solutions to some problems in Aspergillus taxonomy using the scanning electron microscope- The Trichocomaceae: Relationships with other Ascomycetes- Nomenclatorial and taxonomic problems in the genus Eurotium- The ascomycete genus Penicilliopsis and its anamorphs- Contribution to our knowledge of Aspergillus teleomorphs: some taxonomic problems- Secondary metabolites as an aid to Emericella classification- Are the species of Penicillium as imperfect as we think?- 7: Recommendations- List of workshop participants

Abstract: The phylogenetic relationship among Geosmithia argillacea, Talaromyces emersonii, Talaromyces byssochlamydoides and other members of the Trichocomaceae was studied using partial RPB2 (RNA polymerase II gene, encoding the second largest protein subunit), Tsr1 (putative ribosome biogenesis protein) and Cct8 (putative chaperonin complex component TCP-1) gene sequences. The results showed that these species form a distinct clade within the Trichocomaceae and Trichocoma paradoxa is phylogenetically most closely related. Based on phenotypic and physiological characters and molecular data, we propose Rasamsonia gen. nov. to accommodate these species. This new genus is distinct from other genera of the Trichocomaceae in being thermotolerant or thermophilic and having conidiophores with distinctly rough walled stipes, olive-brown conidia and ascomata, if present, with a scanty covering. Species within the genus Rasamsonia were distinguished using a combination of phenotypic characters, extrolite patterns, ITS and partial calmodulin and β-tubulin sequences. Rasamsonia brevistipitata sp. nov. is described and five new combinations are proposed.