Nocardia araoensis sp. nov. and Nocardia pneumoniae sp. nov., isolated from patients in Japan

Author:

Kageyama Akiko1,Yazawa Katsukiyo1,Mukai Akira1,Kohara Tadahiro2,Nishimura Kazuko1,Kroppenstedt Reiner M.3,Mikami Yuzuru1

Affiliation:

1. Research Center for Pathogenic Fungi and Microbial Toxicoses, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8673, Japan

2. Hiroshima Red Cross and Atomic Bomb Survivors Hospital, Hiroshima, Japan

3. Deutsche Sammlung von Mikroorganismen und Zellkulturen, Braunschweig, Germany

Abstract

Two actinomycete strains isolated from two patients with lung nocardiosis between 1995 and 1997 in Japan were assigned to novel species of the genus Nocardia based on morphological and chemical criteria. Comparative 16S rRNA gene sequence analysis of the two strains revealed that they belong to the genus Nocardia and are most closely related to the species Nocardia beijingensis. Determination of DNA–DNA relatedness indicated that these strains could be assigned to two novel species. Based on their phenotypic and phylogenetic characters, two novel species of the genus Nocardia are proposed: Nocardia araoensis sp. nov. for IFM 0575T (=NBRC 100135T=JCM 12118T=DSM 44729T) and Nocardia pneumoniae sp. nov. for IFM 0784T (=NBRC 100136T=JCM 12119T=DSM 44730T).

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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