Biochemical, Catabolic, and PGP Activity of Microbial Communities and Bacterial Strains from the Root Zone of Baccharis linearis in a Mediterranean Mine Tailing

Primer Autor
Aponte, Humberto
Co-autores
Sulbaran-Bracho, Yoelvis
Mondaca, Pedro
Vidal, Catalina
Perez, Rodrigo
Meier, Sebastian
Cornejo, Pablo
Rojas, Claudia
Título
Biochemical, Catabolic, and PGP Activity of Microbial Communities and Bacterial Strains from the Root Zone of Baccharis linearis in a Mediterranean Mine Tailing
Editorial
MDPI
Revista
MICROORGANISMS
Lenguaje
en
Resumen
The management of mine tailings (MT) is commonly workload heavy, intrusive, and expensive. Phytostabilization offers a promising approach for MT management, however, it poses challenges due to the unfavorable physicochemical properties of these wastes. Nevertheless, native microorganisms capable of supporting plant growth and development could enhance the efficacy of phytostabilization. This study assesses the biological activity of microbial communities from the root zone of Baccharis linearis, which is naturally present in MT, in order to evaluate their biotechnological potential for phytostabilization. The root zone and bulk samples were collected from B. linearis plants located within a MT in the Mediterranean zone of Chile. Enzyme activities related to the cycling of C, N, and P were assessed. The community-level physiological profile was evaluated using the MicroResp (TM) system. Bacterial plant growth-promoting (PGP) traits and colony forming units (CFU) were evaluated through qualitative and microbiological methods, respectively. CFU, enzyme activities, and CLPP were higher in the root zone compared with the bulk samples. Five bacterial strains from the root zone exhibited PGP traits such as P solubilization and N acquisition, among others. The presence of microbial communities in the root zone of B. linearis with PGP traits suggests their potential to enhance the ecological management of MT through phytostabilization programs.
Fecha Publicación
2023
Tipo de Recurso
artículo original
doi
10.3390/microorganisms11112639
Formato Recurso
PDF
Palabras Claves
rhizosphere
mining waste
community-level physiological profile
plant growth promoting
Ubicación del archivo
Categoría OCDE
Microbiología
Materias
rizosfera
residuos mineros
perfil fisiológico a nivel comunitario
promotor del crecimiento de las plantas
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
versión publicada
License
CC BY 4.0
Condición de la licencia (Recomendado-repetible)
CC BY 4.0
Derechos de acceso
acceso abierto
Access Rights
acceso abierto
Id de Web of Science
WOS:001114561100001
Tipo de ruta
verde# dorado
Categoría WOS
Microbiología
Referencia del Financiador (Mandatado si es aplicable-repetible)
ANID
CODELCO
Revisa las metricas alternativas de Almetrics
Revisa las citaciones de Dimensions