Talaromyces atroroseus, a new species efficiently producing industrially relevant red pigments

PLoS One. 2013 Dec 19;8(12):e84102. doi: 10.1371/journal.pone.0084102. eCollection 2013.

Abstract

Some species of Talaromyces secrete large amounts of red pigments. Literature has linked this character to species such as Talaromyces purpurogenus, T. albobiverticillius, T. marneffei, and T. minioluteus often under earlier Penicillium names. Isolates identified as T. purpurogenus have been reported to be interesting industrially and they can produce extracellular enzymes and red pigments, but they can also produce mycotoxins such as rubratoxin A and B and luteoskyrin. Production of mycotoxins limits the use of isolates of a particular species in biotechnology. Talaromyces atroroseus sp. nov., described in this study, produces the azaphilone biosynthetic families mitorubrins and Monascus pigments without any production of mycotoxins. Within the red pigment producing clade, T. atroroseus resolved in a distinct clade separate from all the other species in multigene phylogenies (ITS, β-tubulin and RPB1), which confirm its unique nature. Talaromyces atroroseus resembles T. purpurogenus and T. albobiverticillius in producing red diffusible pigments, but differs from the latter two species by the production of glauconic acid, purpuride and ZG-1494α and by the dull to dark green, thick walled ellipsoidal conidia produced. The type strain of Talaromyces atroroseus is CBS 133442.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Industry*
  • Likelihood Functions
  • Pigments, Biological / biosynthesis*
  • Talaromyces / metabolism*
  • Time Factors

Substances

  • Pigments, Biological

Grants and funding

Part of this work was supported by the Danish Research Agency for Technology and Production Grant 09-064967 and an equipment grant from Agilent Technologies. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.