Efficient degradation of tannic acid by black Aspergillus species

Anne D. Van Diepeningen, Alfons J M Debets, J. Varga, Marijn Van Der Gaag, Klaas Swart, Rolf F. Hoekstra

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

A set of aspergillus strains from culture collections and wild-type black aspergilli isolated on non-selective media were used to validate the use of media with 20% tannic acid for exclusive and complete selection of the black aspergilli. The 20% tannic acid medium proved useful for both quantitative and qualitative selection of all different black aspergilli, including all recognized species: A. carbonarius, A. japonicus, A. aculeatus, A. foetidus, A. heteromorphus, A. niger, A. tubingensis and A. brasiliensis haplotypes. Even higher concentrations of tannic acid can be utilized by the black aspergilli suggesting a very efficient tannic acid-degrading system. Colour mutants show that the characteristic ability to grow on high tannic acid concentrations is not causally linked to the other typical feature of these aspergilli, i.e. the formation of brown-black pigments. Sequence analysis of the A. niger genome using the A. oryzae tannase gene yielded eleven tannase-like genes, far more than in related species. Therefore, a unique ecological niche in the degradation of tannic acid and connected nitrogen release seems to be reserved for these black-spored cosmopolitans.

Original languageEnglish
Pages (from-to)919-925
Number of pages7
JournalMycological Research
Volume108
Issue number8
DOIs
Publication statusPublished - Aug 2004

Fingerprint

Tannins
Aspergillus
tannins
tannase
degradation
acid
gene
Oryza
Haplotypes
Genes
Sequence Analysis
pigment
haplotypes
niches
Nitrogen
genes
sequence analysis
genome
Color
pigments

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Plant Science

Cite this

Van Diepeningen, A. D., Debets, A. J. M., Varga, J., Van Der Gaag, M., Swart, K., & Hoekstra, R. F. (2004). Efficient degradation of tannic acid by black Aspergillus species. Mycological Research, 108(8), 919-925. https://doi.org/10.1017/S0953756204000747

Efficient degradation of tannic acid by black Aspergillus species. / Van Diepeningen, Anne D.; Debets, Alfons J M; Varga, J.; Van Der Gaag, Marijn; Swart, Klaas; Hoekstra, Rolf F.

In: Mycological Research, Vol. 108, No. 8, 08.2004, p. 919-925.

Research output: Contribution to journalArticle

Van Diepeningen, AD, Debets, AJM, Varga, J, Van Der Gaag, M, Swart, K & Hoekstra, RF 2004, 'Efficient degradation of tannic acid by black Aspergillus species', Mycological Research, vol. 108, no. 8, pp. 919-925. https://doi.org/10.1017/S0953756204000747
Van Diepeningen AD, Debets AJM, Varga J, Van Der Gaag M, Swart K, Hoekstra RF. Efficient degradation of tannic acid by black Aspergillus species. Mycological Research. 2004 Aug;108(8):919-925. https://doi.org/10.1017/S0953756204000747
Van Diepeningen, Anne D. ; Debets, Alfons J M ; Varga, J. ; Van Der Gaag, Marijn ; Swart, Klaas ; Hoekstra, Rolf F. / Efficient degradation of tannic acid by black Aspergillus species. In: Mycological Research. 2004 ; Vol. 108, No. 8. pp. 919-925.
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