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中国真菌学杂志 2015, Vol. 10  Issue (2): 70-74.

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白假丝酵母菌突变株ORF19.2500的功能研究

牛理达1, 陈晓庆2, 赵静1, 吴建华1, 郑庆虎3   

  1. 1. 上海长海医院皮肤科, 上海 200433;
    2. 上海大学, 上海 200436;
    3. 解放军153医院皮肤科, 郑州 450042
  • 收稿日期:2014-12-02 出版日期:2015-04-28 发布日期:2015-04-28
  • 通讯作者: 吴建华,E-mail:wujh_ch@163.com;郑庆虎,E-mail:zhengqinghu205@163.com E-mail:wujh_ch@163.com;zhengqinghu205@163.com
  • 作者简介:牛理达,女(汉族),硕士研究生在读.E-mail:15721571136@126.com
  • 基金资助:

    国家973项目 (2013CB31602)

A study of function in Candida albicans mutant ORF19.2500

NIU Li-da1, CHEN Xiao-qing2, ZHAO Jing1, WU Jian-hua1, ZHENG Qing-hu3   

  1. 1. Department of Dermatology, Changhai hospital, Shanghai, 200433;
    2. ShangHai University, Shanghai, 200436;
    3. PLA 153 Central Hospital, Zhengzhou, 450042
  • Received:2014-12-02 Online:2015-04-28 Published:2015-04-28

摘要:

目的 筛选50株白假丝酵母菌基因缺失菌,寻找出对白假丝酵母菌生物被膜形成相关基因,进一步探究白假丝酵母菌生物膜的致病机制。方法 利用培养生物被膜的方法筛选50株基因缺失菌;利用XTT法验证所筛选出的白假丝酵母菌突变株ORF19.2500生物被膜形成缺陷;进一步观察ORF19.2500基因缺失菌生长、菌丝形成。结果 用XTT法证明白假丝酵母菌突变株orf19.2500生物膜形成缺陷,且生长曲线和滴琼脂平板的方法均提示其生长速率减慢。在spider培养基上白假丝酵母菌突变株orf19.2500不能诱导菌丝形成,但在YPD+10%小牛血清则菌丝形成正常。结论 白假丝酵母菌突变株orf19.2500可利用spider培养基缺陷而影响其酵母、菌丝二态性的转化,及其生物被膜的形成。

关键词: 白假丝酵母菌, orf19.2500, 酵母, 菌丝, 生物膜

Abstract:

Objective For searching some genes which impacted the formation of Candida albicans biofilm.Then we screened of 50 Candida albicans mutants.So as to identify potential pathogen mechanism of Candida albicans.Methods Screening 50 Candida albicans mutants in the method of cultivating biofilm in vivo.Biofilm was quantified by XTT.Then the mutants of growth rate and hyphal formation were analyzed.Results It was defected for Candida albicans mutant orf19.2500 to form biofilm which was quantified by XTT.The mutant grows slowly,which was quantified by growth curve and spot assay.Then we find the mutant can not form hyphal in liquid spider media,while it can normally form hyphal in liquid YPD plus 10% fetal bovine serum media.Conclusion The Candida albicans mutant orf19.2500 can not utilize liquid media which impacted morphogenetic switching and the biofilm formation.

Key words: Candida albicans, orf19.2500, yeast, hyphal, biofilm

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