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Caracterización de la especie Saccharothrix sabaoui sp. nov., aislado del suelo de los viñedos recogido en

Manel Zahida Bellouti^1,2, Khaoula Bouznada¹, Affaf Laassami¹

¹Laboratoire de Biologie Des Systèmes Microbiens (LBSM), Ecole Normale Supérieure Cheikh Mohamed El Bachir El Ibrahimi, BP 92, 16308 Kouba, Algiers, Algeria.

International journal of systematic and evolutionary microbiology

|February 11, 2026

Resumen

Una nueva bacteria del suelo, Saccharothrix sabaoui sp. fue descubierta. La nueva cepa Mg75^T, fue descubierta en Argelia. Esta nueva especie expande el género Saccharothrix con características genómicas y fenotípicas distintas.

Área de la Ciencia:

Microbiología Microbiología.
La genómica es la genómica.
Actinobacterias Taxonomía de las Actinobacterias

Sus antecedentes:

El género Saccharothrix comprende bacterias aeróbicas Gram-positivas conocidas por sus funciones ecológicas.
La caracterización de nuevas especies es crucial para comprender la diversidad microbiana y las relaciones evolutivas dentro del género.

Objetivo del estudio:

Para aislar, caracterizar y colocar filogenéticamente una nueva cepa bacteriana del suelo argelino.
Para determinar si la nueva cepa representa una nueva especie dentro del género Saccharothrix.

Principales métodos:

Aislamiento y cultivo de la cepa Mg75^T desde el suelo del viñedo.
Caracterización fenotípica incluyendo las condiciones de crecimiento (temperatura, pH, NaCl) y morfología.
Análisis filogenético utilizando secuencias de genes de ARNr 16S.
Análisis genómicos que incluyen contenido de G + C, hibridación digital de ADN-ADN (dDDH), identidad promedio de nucleótidos (ANI) e identidad promedio de aminoácidos (AAI).

Principales resultados:

La cepa Mg75^T es una bacteria Gram-positiva, no móvil, con requisitos específicos de crecimiento y características morfológicas.
El análisis filogenético mostró la mayor similitud genética del ARNr 16S (98,95%) con el Saccharothrix yanglingensis Hhs.015T.
Los análisis genómicos (dDDH, ANI, AAI) revelaron valores significativamente por debajo de los umbrales de delimitación de especies en comparación con las especies relacionadas de Saccharothrix.
El perfil quimiotaxonómico apoyó la distinción de la cepa Mg75^T.

Conclusiones:

La cepa Mg75^T representa una nueva especie dentro del género Saccharothrix.
El nombre propuesto para esta nueva especie es Saccharothrix sabaoui sp. Nov. Nov. Es decir, el nov.
Este descubrimiento contribuye al conocimiento taxonómico del género Saccharothrix y pone de relieve la diversidad microbiana en los suelos argelinos.

Palabras clave:

Las Actinobacterias son Actinobacterias.El saccharothrix es el saccharotrix.phylogenomic, es decir, el género de la familia.La taxonomía es una taxonomía.El suelo de la viña es el suelo de la viña.

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