OsDCL1a activation impairs phytoalexin biosynthesis and compromises disease resistance in rice

[Background and Aims]: MicroRNAs (miRNAs) are small non-coding RNAs that act as post-transcriptional regulators of gene expression via sequence-specific cleavage or translational repression of target transcripts. They are transcribed as long single-stranded RNA precursors with unique stem–loop struc...

Descripción completa

Detalles Bibliográficos
Autores: Salvador-Guirao, Raquel, Baldrich, Patricia, Tomiyama, Shiho, Hsing, Yue-Ie, Okada, Kazunori, San Segundo, Blanca
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/206516
Acceso en línea:http://hdl.handle.net/10261/206516
Access Level:acceso abierto
Palabra clave:DICER-Like (DCL)
Fungal pathogen
Fusarium fujikuroi
Innate immunity
Magnaporthe oryzae
Methyl viologen
Descripción
Sumario:[Background and Aims]: MicroRNAs (miRNAs) are small non-coding RNAs that act as post-transcriptional regulators of gene expression via sequence-specific cleavage or translational repression of target transcripts. They are transcribed as long single-stranded RNA precursors with unique stem–loop structures that are processed by a DICER-Like (DCL) ribonuclease, typically DCL1, to produce mature miRNAs. Although a plethora of miRNAs have been found to be regulated by pathogen infection in plants, the biological function of most miRNAs remains largely unknown. Here, the contribution of OsDCL1 to rice immunity was investigated.