Atypical strains of Candida albicans recovered from AIDS patients.

Journal of medical and veterinary mycology : bi-monthly publication of the International Society for Human and Animal Mycology Pub Date : 1997-03-01

C Pujol, F Renaud, M Mallié, T de Meeûs, J M Bastide

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Abstract

By using multilocus enzyme electrophoresis (MLEE) we have analyzed the genetic diversity encountered among chlamydospore-positive Candida albicans strains. While the type II strains of the former C. stellatoidea were genetically indistinguishable from those of C. albicans, type I strains constituted a distinct subgroup compared with C. albicans strains. Nevertheless, all these strains remained genetically very closely related compared with other species of Candida (e.g. C. tropicalis, C. krusei and C. glabrata). These results corroborate the synonymy between C. stellatoidea and C. albicans. Chlamydospore-positive C. albicans strains with atypical sugar assimilation patterns displayed a great genetic divergence from the cluster constituted by C. albicans and the strains of the former C. stellatoidea. However, these atypical strains were more closely related to C. albicans than they were to C. tropicalis, C. krusei or C. glabrata. These strains represent a genetically entity distinct from the typical C. albicans strains used in this study. The data also support the view that the atypical strains described here belong to the same genetic group as atypical C. albicans strains previously described by others.

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从艾滋病患者身上发现非典型白色念珠菌。

采用多位点酶电泳(MLEE)分析了衣孢子阳性白色念珠菌菌株的遗传多样性。前者星状梭菌的II型菌株与白色念珠菌在遗传上无法区分，而与白色念珠菌菌株相比，I型菌株构成了一个不同的亚群。然而，与其他假丝酵母菌(如热带假丝酵母菌、克鲁西假丝酵母菌和光丝酵母菌)相比，所有这些菌株在遗传上仍然非常接近。这些结果证实了星状念珠菌与白色念珠菌的同义性。具有非典型糖同化模式的衣孢子阳性白色念珠菌与由白色念珠菌和前星状念珠菌组成的菌群表现出很大的遗传差异。然而，这些非典型菌株与白色念珠菌的亲缘关系比与热带念珠菌、克鲁塞念珠菌和光秃念珠菌的亲缘关系更密切。这些菌株代表了一种不同于本研究中使用的典型白色念珠菌菌株的遗传实体。这些数据还支持这样一种观点，即本文描述的非典型菌株与其他人先前描述的非典型白色念珠菌菌株属于同一遗传群。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of medical and veterinary mycology : bi-monthly publication of the International Society for Human and Animal Mycology

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