Plant growth-promoting actinobacterial inoculant assisted phytoremediation increases cadmium uptake in Sorghum bicolor under drought and heat stresses*

Primer Autor
Cornejo, Pablo
Co-autores
Silambarasan, Sivagnanam
Logeswari, Peter
Vangnai, Alisa S.
Kamaraj, Balu
Título
Plant growth-promoting actinobacterial inoculant assisted phytoremediation increases cadmium uptake in Sorghum bicolor under drought and heat stresses*
Editorial
ELSEVIER SCI LTD
Revista
ENVIRONMENTAL POLLUTION
Lenguaje
en
Resumen
In this study, two proficient Cadmium (Cd) resistant and plant growth-promoting actinobacterial strains were isolated from metal-polluted soils and identified as Streptomyces sp. strain RA04 and Nocardiopsis sp. strain RA07. Multiple abiotic stress tolerances were found in these two actinobacterial strains, including Cd stress (CdS), drought stress (DS) and high-temperature stress (HTS). Both actinobacterial strains exhibited multifarious plant growth-promoting (PGP) traits such as phosphate solubilization, and production of indole-3-acetic acid, siderophores and 1-aminocyclopropane-1-carboxylate deaminase under CdS, DS and HTS conditions. The inoculation of strains RA04 and RA07 significantly increased Sorghum bicolor growth and photosynthetic pigments under CdS, DS, HTS, CdS + DS and CdS + HTS conditions as compared to their respective uninoculated plants. The actinobacterial inoculants reduced malondialdehyde concentration and enhanced antioxidant enzymes in plants cultivated under various abiotic stress conditions, indicating that actinobacterial inoculants reduced oxidative damage. Furthermore, strains RA04 and RA07 enhanced the accumulation of Cd in plant tissues and the translocation of Cd from root to shoot under CdS, CdS + DS and CdS + HTS treatments as compared to their respective uninoculated plants. These findings suggest that RA04 and RA07 strains could be effective bioinoculants to accelerate phytoremediation of Cd polluted soil even in DS and HTS conditions.
Tipo de Recurso
artículo original
Description
"S. Silambarasan thankfully acknowledges the financial support received from ""Vicerrectoria de Investigacion y Postgrado, Universidad de La Frontera, Chile"". P. Cornejo acknowledges the ""Agencia Nacional de Investigacion y Desarrollo"" (ANID-Chile) for funding the ANID/FONDECYT/1210964 and ANID/FONDAP/15130015 grants, as well as the Chilean Ministry of Education (MINEDUC Chile) for funding the InES19 project, code FRO19101. The fund by the National Research Council of Thailand (N42A640329) is acknowledged.
S. Silambarasan agradece el apoyo financiero recibido de la ""Vicerrectoria de Investigación y Postgrado, Universidad de La Frontera, Chile"". P. Cornejo agradece a la Agencia Nacional de Investigación y Desarrollo (ANID-Chile) por financiar las becas ANID/FONDECYT/1210964 y ANID/FONDAP/15130015, así como al Ministerio de Educación de Chile (MINEDUC Chile) por financiar el InES19 proyecto, código FRO19101. Se reconoce el fondo del Consejo Nacional de Investigación de Tailandia (N42A640329)."
doi
10.1016/j.envpol.2022.119489
Formato Recurso
PDF
Palabras Claves
Plant growth-promoting actinobacteria
Cadmium
Phytoremediation
Abiotic stress
Antioxidant enzymes
Sorghum bicolor
ZEA-MAYS L.
INDUCED OXIDATIVE STRESS
CONTAMINATED SOIL
TRACE-ELEMENTS
CITRIC-ACID
TOLERANCE
BACTERIA
ASSAY
PHYTOEXTRACTION
ALLEVIATION
Ubicación del archivo
http://dx.doi.org/10.1016/j.envpol.2022.119489
Categoría OCDE
Ciencias Ambientales
Materias
Actinobacterias promotoras del crecimiento vegetal
Cadmio
Fitorremediación
Estrés abiótico
Enzimas antioxidantes
Sorgo bicolor
ZEA-MAYS L.
ESTRÉS OXIDATIVO INDUCIDO
SUELO CONTAMINADO
OLIGOELEMENTOS
ÁCIDO CÍTRICO
TOLERANCIA
BACTERIAS
ENSAYO
FITOEXTRACCIÓN
ALIVIACIÓN
Disciplinas de la OCDE
Biorremediación
Biotecnología Ambiental
Agronomía
Título de la cita (Recomendado-único)
Plant growth-promoting actinobacterial inoculant assisted phytoremediation increases cadmium uptake in Sorghum bicolor under drought and heat stresses*
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
version publicada
Condición de la licencia (Recomendado-repetible)
0
Derechos de acceso
metadata
Access Rights
metadata
Id de Web of Science
WOS:000804993600008
Referencia del Financiador (Mandatado si es aplicable-repetible)
ANID FONDECYT 1210964
ANID FONDAP 15130015
MINEDUC FRO19101
NRCT N42A640329
Colecciones
Colección Publicaciones Científicas
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