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Caracterización polifásica de las especies de Nocardioides aquaegermanicae sp. Nov., un nuevo Actinobacterium
Shuangqing Zhou1,2, Sarah Kirstein1, Lara Keunecke3
1Leibniz-Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, Braunschweig, Germany.
PloS one
|February 10, 2026
Resumen
Una nueva bacteria, Nocardioides aquaegermanicae sp. fue descubierta. nov., fue descubierto en Alemania. Esta nueva especie, la cepa DSM 117947T, fue identificada a través de un análisis taxonómico polifásico integral, distinguiéndola de las especies relacionadas.
Área de la Ciencia:
- Microbiología Microbiología.
- Bacteriología Bacteriología.
- La taxonomía es una taxonomía.
Sus antecedentes:
- La cepa DSM 117947T fue aislada de un co-cultivo de Micromonospora matsumotoense.
- La muestra se originó en una fuente de agua en Alemania.
Objetivo del estudio:
- Para realizar un análisis taxonómico polifásico de la cepa DSM 117947T.
- Para determinar si la cepa representa una nueva especie dentro del género Nocardioides.
Principales métodos:
- Análisis taxonómico polifásico que incluye la secuenciación de genes de ARNr 16S.
- Cálculos de hibridación ADN-ADN digital (dDDH) y identidad promedio de nucleótidos (ANI).
- Análisis quimiotaxonómicos (lípidos polares, menaquinona, ácidos grasos) y determinación genómica del contenido de G+C.
Principales resultados:
- La cepa mostró un 99,3% de similitud en la secuencia génica del ARNr 16S con la de Nocardioides aurantiacus DSM 12652T.
- Los valores de dDDH y ANI estaban por debajo de los umbrales de demarcación de especies (70% y 95-96%, respectivamente).
- Distintos perfiles quimiotaxonómicos y genómicos diferenciaron la cepa de su vecino filogenético más cercano.
Conclusiones:
- Las características únicas de la cepa DSM 117947T justifican su clasificación como una especie nueva.
- El nombre propuesto para esta nueva especie es Nocardioides aquaegermanicae sp. Nov. Nov. Es decir, el nov.
- La cepa DSM 117947T está designada como la cepa tipo (WG_orangeT = KCTC 59414T).
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