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KMID : 1101420160480010015
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Korean Journal of Clinical Laboratory Science
2016 Volume.48 No. 1 p.15 ~ p.21
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Study of Aspergillus Species from Clinical Specimen Isolate
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Lee Jang-Ho
Koo Bon-Kyung
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Abstract
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Aspergillus is the most common opportunistic fungus causing infection. Aspergillus is the most morphologically identified in the laboratory. Recently, molecular genetic methods have been proposed for identification of fungi that unidentified morphologically or identified genus level. Of 475 cases of Aspergillus isolated from clinical specimens, there were Aspergillus fumigatus 257 (54.1%), A. niger 101 (21.3%), A. flavus 43 (9.1%), A. terreus 29 (6.1%), Aspergillus nidulans 2 (0.4%), Aspergillus clavatus 1 (0.2%), and the Aspergillus species 42 (8.8%). Eleven cases of unidentified or identified at the genus level included Aspergillus fumigatus 5, Aspergillus falvus 1, Aspergillus terreus 1, and Aspergillus lentulus 1 was identified in the sequencing of the strain level. It was identified as Aspergillus versicolor 2, and Emericella parvathecia 1. 92.2% of Aspergillus was identified as a possible morphological, 8.8% could not be identified at the species level. Sequence-based molecular analysis using the ITS and D1D2 is considered useful for identification of the species level.
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KEYWORD
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Aspergillosis, Aspergillus, Sequence-based molecular analysis
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