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Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts
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| Zeitschriftentitel: | Journal of Clinical Microbiology |
|---|---|
| Personen und Körperschaften: | , , , , , |
| In: | Journal of Clinical Microbiology, 35, 1997, 1, S. 313-316 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Society for Microbiology
|
| Schlagwörter: |
| author_facet |
Odds, F C Rinaldi, M G Cooper, C R Fothergill, A Pasarell, L McGinnis, M R Odds, F C Rinaldi, M G Cooper, C R Fothergill, A Pasarell, L McGinnis, M R |
|---|---|
| author |
Odds, F C Rinaldi, M G Cooper, C R Fothergill, A Pasarell, L McGinnis, M R |
| spellingShingle |
Odds, F C Rinaldi, M G Cooper, C R Fothergill, A Pasarell, L McGinnis, M R Journal of Clinical Microbiology Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts Microbiology (medical) |
| author_sort |
odds, f c |
| spelling |
Odds, F C Rinaldi, M G Cooper, C R Fothergill, A Pasarell, L McGinnis, M R 0095-1137 1098-660X American Society for Microbiology Microbiology (medical) http://dx.doi.org/10.1128/jcm.35.1.313-316.1997 <jats:p>Seventy yeast isolates representing species in the genera Candida and Torulopsis but excluding Candida albicans were examined in three laboratories for production of pseudohyphae in Dalmau cultures. The microscopic morphology of the isolates was scrutinized by four individuals experienced in yeast identification and three inexperienced persons, all of whom were blinded as to the putative identification of the yeasts. For 49 (70%) of the 70 isolates, the seven observers recorded comparable scores for morphology, but 5 (7%) of the isolates showed extreme variation in recorded morphologies, from true hyphae formed to no pseudohyphae formed. Isolates of Candida parapsilosis and Torulopsis glabrata consistently did and did not form pseudohyphae, respectively: however, other Candida and Torulopsis spp. did not always express their expected morphologies. In 48 (19%) of 252 readings (seven observers), 36 isolates of Candida spp. were scored as forming no pseudohyphae, and in 22 (9.2%) of 238 readings, 34 isolates of Torulopsis spp. were recorded as forming true hyphae or pseudohyphae. These results show that pseudohypha formation is not a reliable characteristic for identification of yeasts at the genus level; we suggest that the merger of Torulopsis spp. into the genus Candida should be finally accepted.</jats:p> Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts Journal of Clinical Microbiology |
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Journal of Clinical Microbiology |
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| title |
Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_unstemmed |
Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_full |
Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_fullStr |
Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_full_unstemmed |
Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_short |
Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_sort |
candida and torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| topic |
Microbiology (medical) |
| url |
http://dx.doi.org/10.1128/jcm.35.1.313-316.1997 |
| publishDate |
1997 |
| physical |
313-316 |
| description |
<jats:p>Seventy yeast isolates representing species in the genera Candida and Torulopsis but excluding Candida albicans were examined in three laboratories for production of pseudohyphae in Dalmau cultures. The microscopic morphology of the isolates was scrutinized by four individuals experienced in yeast identification and three inexperienced persons, all of whom were blinded as to the putative identification of the yeasts. For 49 (70%) of the 70 isolates, the seven observers recorded comparable scores for morphology, but 5 (7%) of the isolates showed extreme variation in recorded morphologies, from true hyphae formed to no pseudohyphae formed. Isolates of Candida parapsilosis and Torulopsis glabrata consistently did and did not form pseudohyphae, respectively: however, other Candida and Torulopsis spp. did not always express their expected morphologies. In 48 (19%) of 252 readings (seven observers), 36 isolates of Candida spp. were scored as forming no pseudohyphae, and in 22 (9.2%) of 238 readings, 34 isolates of Torulopsis spp. were recorded as forming true hyphae or pseudohyphae. These results show that pseudohypha formation is not a reliable characteristic for identification of yeasts at the genus level; we suggest that the merger of Torulopsis spp. into the genus Candida should be finally accepted.</jats:p> |
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| author | Odds, F C, Rinaldi, M G, Cooper, C R, Fothergill, A, Pasarell, L, McGinnis, M R |
| author_facet | Odds, F C, Rinaldi, M G, Cooper, C R, Fothergill, A, Pasarell, L, McGinnis, M R, Odds, F C, Rinaldi, M G, Cooper, C R, Fothergill, A, Pasarell, L, McGinnis, M R |
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| description | <jats:p>Seventy yeast isolates representing species in the genera Candida and Torulopsis but excluding Candida albicans were examined in three laboratories for production of pseudohyphae in Dalmau cultures. The microscopic morphology of the isolates was scrutinized by four individuals experienced in yeast identification and three inexperienced persons, all of whom were blinded as to the putative identification of the yeasts. For 49 (70%) of the 70 isolates, the seven observers recorded comparable scores for morphology, but 5 (7%) of the isolates showed extreme variation in recorded morphologies, from true hyphae formed to no pseudohyphae formed. Isolates of Candida parapsilosis and Torulopsis glabrata consistently did and did not form pseudohyphae, respectively: however, other Candida and Torulopsis spp. did not always express their expected morphologies. In 48 (19%) of 252 readings (seven observers), 36 isolates of Candida spp. were scored as forming no pseudohyphae, and in 22 (9.2%) of 238 readings, 34 isolates of Torulopsis spp. were recorded as forming true hyphae or pseudohyphae. These results show that pseudohypha formation is not a reliable characteristic for identification of yeasts at the genus level; we suggest that the merger of Torulopsis spp. into the genus Candida should be finally accepted.</jats:p> |
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| imprint | American Society for Microbiology, 1997 |
| imprint_str_mv | American Society for Microbiology, 1997 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Zwi2, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229 |
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| spelling | Odds, F C Rinaldi, M G Cooper, C R Fothergill, A Pasarell, L McGinnis, M R 0095-1137 1098-660X American Society for Microbiology Microbiology (medical) http://dx.doi.org/10.1128/jcm.35.1.313-316.1997 <jats:p>Seventy yeast isolates representing species in the genera Candida and Torulopsis but excluding Candida albicans were examined in three laboratories for production of pseudohyphae in Dalmau cultures. The microscopic morphology of the isolates was scrutinized by four individuals experienced in yeast identification and three inexperienced persons, all of whom were blinded as to the putative identification of the yeasts. For 49 (70%) of the 70 isolates, the seven observers recorded comparable scores for morphology, but 5 (7%) of the isolates showed extreme variation in recorded morphologies, from true hyphae formed to no pseudohyphae formed. Isolates of Candida parapsilosis and Torulopsis glabrata consistently did and did not form pseudohyphae, respectively: however, other Candida and Torulopsis spp. did not always express their expected morphologies. In 48 (19%) of 252 readings (seven observers), 36 isolates of Candida spp. were scored as forming no pseudohyphae, and in 22 (9.2%) of 238 readings, 34 isolates of Torulopsis spp. were recorded as forming true hyphae or pseudohyphae. These results show that pseudohypha formation is not a reliable characteristic for identification of yeasts at the genus level; we suggest that the merger of Torulopsis spp. into the genus Candida should be finally accepted.</jats:p> Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts Journal of Clinical Microbiology |
| spellingShingle | Odds, F C, Rinaldi, M G, Cooper, C R, Fothergill, A, Pasarell, L, McGinnis, M R, Journal of Clinical Microbiology, Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts, Microbiology (medical) |
| title | Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_full | Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_fullStr | Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_full_unstemmed | Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_short | Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_sort | candida and torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| title_unstemmed | Candida and Torulopsis: a blinded evaluation of use of pseudohypha formation as basis for identification of medically important yeasts |
| topic | Microbiology (medical) |
| url | http://dx.doi.org/10.1128/jcm.35.1.313-316.1997 |