Repositorio UFRO · Omeka S

Rhizosphere fungi regulate the expression of metal tolerance genes in Solanum lycopersicum L. (Solanaceae) growing in a metal (loid)-contaminated soil

Primer Autor	Arriagada, Cesar
Co-autores	Fuentes-Quiroz, Alejandra Herrera, Hector Soto, Javiera Campos-Vargas, Reinaldo Ortiz, Javier
Título	Rhizosphere fungi regulate the expression of metal tolerance genes in Solanum lycopersicum L. (Solanaceae) growing in a metal (loid)-contaminated soil
Editorial	ELSEVIER
Revista	RHIZOSPHERE
Lenguaje	en
Resumen	In this study, eight fungal strains were isolated from the rhizosphere of Oenothera picensis Phil., a plant that grows naturally in soil contaminated with metal (loid)s in central Chile. The capacity of the strains to tolerate copper and zinc was evaluated, and their effect on the expression of genes related to metal tolerance in Solanum lyco-persicum co-inoculated with arbuscular mycorrhizal fungi. Among the isolates, Lecythophora sp. and Hormonema viticola showed the highest tolerance to Cu (1150 mg kg -1) and Zn (3200 mg kg-1), respectively. We detected the highest lactic and oxalic acid production lactic and oxalic acid production in Lecythophora sp. against Cu contamination. In contrast, a higher malic, lactic, and citric acid production was detected in H. viticola against Zn contamination. Regarding the expression involved in metal tolerance, we showed that both fungi reduce the expression of the genes MT, PCS, HSP, and NRAMP in S. lycopersicum growing under metal stress. We did not observe a significant positive effect of the co-inoculation with the arbuscular mycorrhizal fungus Rhizophagus irregularis in the relative expression genes in leaves, but a positive impact was detected in roots. The results showed that the co-inoculation of rhizosphere metal-tolerant fungi isolated from metallophyte species and mycorrhizal fungi decreased the expression of metal tolerance genes in S. lycopersicum growing under toxic Cu and Zn levels.
Fecha Publicación	2022
Tipo de Recurso	artículo original
doi	10.1016/j.rhisph.2022.100599
Formato Recurso	PDF
Palabras Claves	Bioremediation Heavy metal stress Mycorrhizal symbiosis Plant growth promotion Rhizospheric fungi
Ubicación del archivo	http://dx.doi.org/10.1016/j.rhisph.2022.100599
Categoría OCDE	Agricultura Ciencias Vegetales
Materias	Biorremediación Estrés por metales pesados Simbiosis micorrízica Promoción del crecimiento vegetal Hongos rizosféricos
Identificador del recurso (Mandatado-único)	artículo original
Versión del recurso (Recomendado-único)	versión publicada
Derechos de acceso	metadata
Access Rights	metadata
Id de Web of Science	WOS:000936938900005
Categoría WOS	Agricultura Ciencias Vegetales
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID FONDECYT 1211857 UFRO DI20-0074