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学科主题: 临床医学
题名:
Revision of agents of black-grain eumycetoma in the order Pleosporales
作者: Ahmed, S. A.1,2,3; van de Sande, W. W. J.4; Stevens, D. A.5; Fahal, A.6; van Diepeningen, A. D.2; Menken, S. B. J.3; de Hoog, G. S.2,3,7,8,9,10,11
关键词: Madurella ; mycetoma ; Pleosporales ; taxonomy ; Trematosphaeriaceae
刊名: PERSOONIA
发表日期: 2014-12-01
DOI: 10.3767/003158514X684744
卷: 33, 页:141-154
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Mycology
研究领域[WOS]: Mycology
关键词[WOS]: MADURELLA-GRISEA ; MOLECULAR-IDENTIFICATION ; MISSING DATA ; MYCETOMA ; FUNGI ; RDNA ; NOV ; DNA
英文摘要:

Eumycetoma is a chronic fungal infection characterised by large subcutaneous masses and the presence of sinuses discharging coloured grains. The causative agents of black-grain eumycetoma mostly belong to the orders Sordariales and Pleosporales. The aim of the present study was to clarify the phylogeny and taxonomy of pleosporalean agents, viz. Madurella grisea, Medicopsis romeroi (syn.: Pyrenochaeta romeroi), Nigrograna mackinnonii (syn. Pyrenochaeta mackinnonii), Leptosphaeria senegalensis, L. tompkinsii, and Pseudochaetosphaeronema larense. A phylogenetic analysis based on five loci was performed: the Internal Transcribed Spacer (ITS), large (LSU) and small (SSU) subunit ribosomal RNA, the second largest RNA polymerase subunit (RPB2), and translation elongation factor 1-alpha (TEF1) gene. In addition, the morphological and physiological characteristics were determined. Three species were well-resolved at the family and genus level. Madurella grisea, L. senegalensis, and L. tompkinsii were found to belong to the family Trematospheriaceae and are reclassified as Trematosphaeria grisea comb. nov., Falciformispora senegalensis comb. nov., and F. tompkinsii comb. nov. Medicopsis romeroi and Pseudochaetosphaeronema larense were phylogenetically distant and both names are accepted. The genus Nigrograna is reduced to synonymy of Biatriospora and therefore N. mackinnonii is reclassified as B. mackinnonii comb. nov. Mycetoma agents in Pleosporales were phylogenetically quite diverse despite their morphological similarity in the formation of pycnidia, except for the ascosporulating genus Falciformispora (formerly in Leptosphaeria). Most of the species diagnosed from human mycetoma were found to be related to waterborne or marine fungi, suggesting an association of the virulence factors with oligotrophism or halotolerance.

语种: 英语
WOS记录号: WOS:000347361200007
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/57786
Appears in Collections:北京大学第一临床医学院_皮肤性病科_期刊论文

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作者单位: 1.Univ Khartoum, Fac Med Lab Sci, Khartoum, Sudan
2.CBS KNAW Fungal Biodivers Ctr, NL-3584 CT Utrecht, Netherlands
3.Univ Amsterdam, Inst Biodivers & Ecosyst Dynam, NL-1012 WX Amsterdam, Netherlands
4.Erasmus MC, Dept Med Microbiol & Infect Dis, Rotterdam, Netherlands
5.Calif Inst Med Res, San Jose, CA 95128 USA
6.Univ Khartoum, Mycetoma Res Ctr, Khartoum, Sudan
7.Peking Univ, Hlth Sci Ctr, Res Ctr Med Mycol, Beijing 100871, Peoples R China
8.Sun Yat Sen Univ, Sun Yat Sen Mem Hosp, Guangzhou 510275, Guangdong, Peoples R China
9.King Abdulassiz Univ, Jeddah, Saudi Arabia
10.Second Mil Med Univ, Changzheng Hosp, Shanghai Inst Med Mycol, Shanghai, Peoples R China
11.Univ Fed Parana, Basic Pathol Dept, Curitiba, Parana, Brazil

Recommended Citation:
Ahmed, S. A.,van de Sande, W. W. J.,Stevens, D. A.,et al. Revision of agents of black-grain eumycetoma in the order Pleosporales[J]. PERSOONIA,2014,33:141-154.
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