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中国真菌学杂志 2014, Vol. 9  Issue (5): 279-282,278.

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1株致体股癣的颗粒型红色毛癣菌变种的形态学观察与基因鉴定

杨艳平1, 李文1, 欧如峻2, 陈何莲3, 黄文明1   

  1. 1. 广东医学院附属医院 皮肤科 湛江, 524001;
    2. 广东医学院附属医院 健康管理中心 湛江, 524001;
    3. 广东医学院附属医院 妇产科, 湛江, 524001
  • 收稿日期:2014-07-15 出版日期:2014-10-28 发布日期:2014-10-28
  • 通讯作者: 黄文明, E-mail:pfyyp2006@163.com E-mail:pfyyp2006@163.com
  • 作者简介:杨艳平, 女 (汉族), 硕士, 主治医师.E-mail:41505019@qq.com

Morphological observation and genetic identification of a variant of granular type Trichophyton rubrum isolated from tinea corporis and cruris

YANG yan-ping1, LI wen1, OU ru-jun2, CHEN he-lian3, HUANG wen-ming1   

  1. 1. Department of Dermatology, Zhanjiang 524001, China;
    2. Department of Health Management Center, Zhanjiang 524001, China;
    3. Department of Gynaecology and Obstetrics, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China
  • Received:2014-07-15 Online:2014-10-28 Published:2014-10-28

摘要: 目的 探讨1株致体股癣的颗粒型红色毛癣菌变种的形态学特点及核糖体基因序列变化.方法 1例体股癣患者皮损中分离出1株红色毛癣菌,观察形态学特点,并用PCR测定核糖体转录间区 (ITS)、D1/D2区、非转录区基因序列 (NTS区)内串联重复亚单位 (TRS).结果 该菌株可产生鹿角形菌丝,大分生孢子有中空现象及单侧出芽产孢特征,可在42℃生长;ITS和D1/D2区基因测序鉴定为红色毛癣菌,但TRS-1和TRS-2基因序列分别有2个、1个碱基差异.结论 该菌株可能是颗粒型红色毛癣菌的1个变种.

关键词: 红色毛癣菌, 体癣, 基因鉴定

Abstract: Objectives To investigate the morphological features and sequences of ribosomal genes in a variant of granular type Trichophyton rubrum isolated from tinea corporis and cruris.Methods The morphological features of one T.rubrum strain recovered from a patient with tinea corporis and cruris were observed. The ribosomal internal transcribed spacer (ITS), D1/D2 and non-transcribed region were determined by PCR.Results The phenotype of the isolate produced antlers mycelium, macroconidium had hollow phenomenon, unilateral budding and it grew at 42℃. The sequences of ITS and D1/D2 were identical to T.rubrum in the GenBank, but sequences of TRS-1 and TRS-2 in the non-transcribed region were different from the reference strains by 2 and 1 base, respectively.Conclusion The strain might be a variant of granular type T.rubrum.

Key words: Trichophyton rubrum, tinea corporis, genetic identification

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