Aislamiento y caracterización de bacterias halotolerantes procedentes de suelos del municipio Remedios, Cuba
Resumen
El aislamiento de bacterias halotolerantes representa una estrategia para mitigar la salinización del suelo y favorecer la adaptación de los cultivos. Este estudio tuvo como objetivo identificar bacterias de suelos salinos en Remedios, Cuba, y evaluar su potencial como promotoras de crecimiento vegetal (PGPB). Se seleccionaron tres cepas bacterianas tolerantes a 200 mM de NaCl, identificadas como Proteus sp. RM 4.2, Lysinibacillus sp. RM 6.2 y Tenebrionicola sp. RM 4.1. Las tres cepas presentaron capacidad de fijar nitrógeno, producir sideróforos y enzimas líticas. En ensayos de inoculación en plantas de tomate, Proteus sp. RM 4.2 promovió significativamente el crecimiento vegetal en los cultivares evaluados, destacándose como la cepa con mayor efecto promotor de crecimiento. En conjunto, los resultados indicaron que las cepas evaluadas presentaron rasgos funcionales asociados a la promoción del crecimiento vegetal y representan una alternativa viable para el desarrollo de bioinoculantes en suelos salinos.
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Derechos de autor 2026 Marisel Ortega-García, Yoania Ríos-Rocafull, Grisel Tejeda-González, Lily Zelaya-Molina, Ismael Chávez-Díaz, María Nápoles-García

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