巴西塞拉多土壤新分离株——新种诺卡氏菌（Nocardia cerradoensis sp. nov.）

Nocardia cerradoensis sp. nov., a novel isolate from Cerrado soil in Brazil.

作者信息

Albuquerque de Barros Erika V S, Manfio Gilson P, Ribeiro Maitan Valéria, Mendes Bataus Luiz A, Kim Seung Bum, Maldonado Luis A, Goodfellow Michael

机构信息

Departamento de Biologia Celular, Universidade de Brasilia, DF 70910900, Brazil.

Fundacão Tropical de Pesquisas e Tecnologia, 'Andre Tosello', Rua Latino Coelho 1301, 13087-010, Campinas (SP), Brazil.

出版信息

Int J Syst Evol Microbiol. 2003 Jan;53(Pt 1):29-33. doi: 10.1099/ijs.0.02020-0.

DOI:10.1099/ijs.0.02020-0

PMID:12656148

Abstract

An isolate from Cerrado soil, provisionally assigned to the genus Nocardia, was shown to have chemical and morphological properties typical of nocardiae. The strain formed a distinct monophyletic clade in the 16S rDNA tree together with Nocardia africana, Nocardia vaccinii and Nocardia veterana, and showed a unique combination of phenotypic properties that distinguished it from representatives of all recognized species of Nocardia. DNA-DNA relatedness studies indicated that the isolate belongs to a genomic species that is readily distinguished from its nearest neighbours, the type strains of N. africana and N. veterana. The organism is considered to merit species status, and it is proposed that it be designated Nocardia cerradoensis sp. nov., with strain YgT (=CCT 5601T =DSM 44546T) as the type strain.

摘要

从塞拉多土壤中分离出的一株菌，暂归为诺卡氏菌属，已证明其具有诺卡氏菌典型的化学和形态学特性。该菌株在16S rDNA树中与非洲诺卡氏菌、牛痘诺卡氏菌和 veterana诺卡氏菌形成一个独特的单系分支，并且表现出独特的表型特性组合，使其与诺卡氏菌所有已确认物种的代表区分开来。DNA-DNA相关性研究表明，该分离株属于一个基因组物种，很容易与其最接近的近缘种——非洲诺卡氏菌和veterana诺卡氏菌的模式菌株区分开来。该生物体被认为具有物种地位，建议将其命名为塞拉多诺卡氏菌（Nocardia cerradoensis sp. nov.），菌株YgT（=CCT 5601T =DSM 44546T）为模式菌株。