Loss-of-function of NITROGEN LIMITATION ADAPTATION confers disease resistance in Arabidopsis by modulating hormone signaling and camalexin content
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Otros documentos de la autoría: Val Torregrosa, Beatriz; Bundó, Mireia; Mallavarapu, Mani Deepika; Chiou, Tzyy-Jen; Flors, Victor; San Segundo, Blanca
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2508
comunitat-uji-handle3:10234/6999
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INVESTIGACIONMetadatos
Título
Loss-of-function of NITROGEN LIMITATION ADAPTATION confers disease resistance in Arabidopsis by modulating hormone signaling and camalexin contentAutoría
Fecha de publicación
2022-07-15Editor
Elsevier ScienceDirectISSN
0168-9452Cita bibliográfica
Val-Torregrosa, B., Bundó, M., Mallavarapu, M. D., Chiou, T. J., Flors, V., & San Segundo, B. (2022). Loss-of-function of NITROGEN LIMITATION ADAPTATION confers disease resistance in Arabidopsis by modulating hormone signaling and camalexin content. Plant Science, 323, 111374Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Phosphorus is an important macronutrient required for plant growth and development. It is absorbed by the roots in the form of inorganic phosphate (Pi). Under Pi limiting conditions, plants activate the Phosphate ... [+]
Phosphorus is an important macronutrient required for plant growth and development. It is absorbed by the roots in the form of inorganic phosphate (Pi). Under Pi limiting conditions, plants activate the Phosphate Starvation Response (PSR) system to enhance Pi acquisition. The NITROGEN LIMITATION ADAPTION (NLA) gene is a component of the Arabidopsis PSR, and its expression is post-transcriptionally regulated by miR827. We show that loss-of-function of NLA and MIR827 overexpression increases Pi level and enhances resistance to infection by the fungal pathogen Plectosphaerella cucumerina in Arabidopsis. Upon pathogen infection, high Pi plants (e.g. nla plants and wild type plants grown under high Pi supply) showed enhanced callose deposition. High Pi plants also exhibited superinduction of camalexin biosynthesis genes which is consistent with increased levels of camalexin during pathogen infection. Pathogen infection and treatment with fungal elicitors, triggered up-regulation of MIR827 and down-regulation of NLA expression. Under non-infection conditions, the nla plants showed increased levels of SA and JA compared with wild type plants, their levels further increasing upon pathogen infection. Overall, the outcomes of this study suggest that NLA plays a role in Arabidopsis immunity, while supporting convergence between Pi signaling and immune signaling in Arabidopsis. [-]
Publicado en
Plant Science, Vol. 323 (October 2022)Entidad financiadora
Agencia Estatal de Investigación. Ministerio de Ciencia e Innovación | Universitat Jaume I | CSIC Open Access Publication Support Initiative | Severo Ochoa Programme for Centres of Excellence in R&D
Código del proyecto o subvención
RTI2018-101275-B-I00 | UJI-B2019-2 | SEV‐2015–0533 | CEX2019-000902-S
Derechos de acceso
info:eu-repo/semantics/openAccess
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