Aspergillus section Nidulantes (formerly Emericella)

Polyphasic taxonomy, chemistry and biology

A. J. Chen, J. C. Frisvad, B. D. Sun, J. Varga, S. Kocsubé, J. Dijksterhuis, D. H. Kim, S. B. Hong, J. Houbraken, R. A. Samson

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Aspergillus section Nidulantes includes species with striking morphological characters, such as biseriate conidiophores with brown-pigmented stipes, and if present, the production of ascomata embedded in masses of Hülle cells with often reddish brown ascospores. The majority of species in this section have a sexual state, which were named Emericella in the dual name nomenclature system. In the present study, strains belonging to subgenus Nidulantes were subjected to multilocus molecular phylogenetic analyses using internal transcribed spacer region (ITS), partial β-tubulin (BenA), calmodulin (CaM) and RNA polymerase II second largest subunit (RPB2) sequences. Nine sections are accepted in subgenus Nidulantes including the new section Cavernicolus. A polyphasic approach using morphological characters, extrolites, physiological characters and phylogeny was applied to investigate the taxonomy of section Nidulantes. Based on this approach, section Nidulantes is subdivided in seven clades and 65 species, and 10 species are described here as new. Morphological characters including colour, shape, size, and ornamentation of ascospores, shape and size of conidia and vesicles, growth temperatures are important for identifying species. Many species of section Nidulantes produce the carcinogenic mycotoxin sterigmatocystin. The most important mycotoxins in Aspergillus section Nidulantes are aflatoxins, sterigmatocystin, emestrin, fumitremorgins, asteltoxins, and paxillin while other extrolites are useful drugs or drug lead candidates such as echinocandins, mulundocandins, calbistrins, varitriols, variecolins and terrain. Aflatoxin B1 is produced by four species: A. astellatus, A. miraensis, A. olivicola, and A. venezuelensis.

Original languageEnglish
Pages (from-to)1-118
Number of pages118
JournalStudies in Mycology
Volume84
DOIs
Publication statusPublished - Jun 1 2016

Fingerprint

Emericella
Sterigmatocystin
Echinocandins
sterigmatocystin
Mycotoxins
Aspergillus
ascospores
fumitremorgins
mycotoxins
chemistry
Paxillin
taxonomy
teleomorphs
Biological Sciences
drugs
Aflatoxin B1
ascomata
conidiophores
Aflatoxins
Fungal Spores

Keywords

  • Ascomycetes
  • Eurotiales
  • Multi-gene phylogeny
  • Sterigmatocystin

ASJC Scopus subject areas

  • Plant Science

Cite this

Chen, A. J., Frisvad, J. C., Sun, B. D., Varga, J., Kocsubé, S., Dijksterhuis, J., ... Samson, R. A. (2016). Aspergillus section Nidulantes (formerly Emericella): Polyphasic taxonomy, chemistry and biology. Studies in Mycology, 84, 1-118. https://doi.org/10.1016/j.simyco.2016.10.001

Aspergillus section Nidulantes (formerly Emericella) : Polyphasic taxonomy, chemistry and biology. / Chen, A. J.; Frisvad, J. C.; Sun, B. D.; Varga, J.; Kocsubé, S.; Dijksterhuis, J.; Kim, D. H.; Hong, S. B.; Houbraken, J.; Samson, R. A.

In: Studies in Mycology, Vol. 84, 01.06.2016, p. 1-118.

Research output: Contribution to journalArticle

Chen, AJ, Frisvad, JC, Sun, BD, Varga, J, Kocsubé, S, Dijksterhuis, J, Kim, DH, Hong, SB, Houbraken, J & Samson, RA 2016, 'Aspergillus section Nidulantes (formerly Emericella): Polyphasic taxonomy, chemistry and biology', Studies in Mycology, vol. 84, pp. 1-118. https://doi.org/10.1016/j.simyco.2016.10.001
Chen, A. J. ; Frisvad, J. C. ; Sun, B. D. ; Varga, J. ; Kocsubé, S. ; Dijksterhuis, J. ; Kim, D. H. ; Hong, S. B. ; Houbraken, J. ; Samson, R. A. / Aspergillus section Nidulantes (formerly Emericella) : Polyphasic taxonomy, chemistry and biology. In: Studies in Mycology. 2016 ; Vol. 84. pp. 1-118.
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