Journal of Microbiology and Biotechnology

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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A New Species of Hyphomycetes, Aspergillus coreanus sp.nov.,Isolated from Traditional Korean Nuruk

  • Yu, Tae-Shick (Department of Microbiology, Keimyung University) ;
  • Yeo, Soo-Hwan (Traditional Microorganism Resources Center, Keimyung University) ;
  • Kim, Hyun-Soo (Department of Microbiology, Keimyung University)
  • Published : 2004.02.01
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Abstract

Strain NR $15-1^T$ isolated from traditional Korean Nuruk is described as a new species and named as Aspergillus coreanus NR $15-1^T$ sp. novo Strain NR $15-1^T$ grew rapidly to form yellow-green colonies whose surfaces were velvety on Czapek solution agar. Conidial heads were yellow to light and elliptical, whereas the conidiophore was colorless and typically long. In addition, vesicles were from flask-shaped to globose, and sterigmata are uniseriate. Conidia were spherical and deep yellow-green, and their surfaces were lightly roughened. The G＋C content of strain NR $15-1^T$ was 51 mol% and strain NR $15-1^T$contained a dihydrogenated ubiquinone with Q9 (94.9%) as a major quinone. The nucleotide sequences of strain NR $15-1^T$ in the two Internal Transcribed Spacers (ITS 1 and 2) and 5.8S rDNA showed highest similarity when compared with that of A. tubingensis and A. phoenicis NRRL $365^T$. However, based on morphological and chemotaxonomic characteristics, this strain was different from A. tubingensis and A. phoenicis NRRL $365^T$. On the basis of the data presented, it is proposed that strain NR $15-1^T$ should be placed in the genus Aspergillus as a new species, Aspergillus coreanus sp. novo Therefore, the type strain of the new species is strain NR $15-1^T$ (=KCTC 18075P^T,=KCCM 80006^T$.

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