Data/hora: 04/06/2024 23:33:55

Biblioteca(s): | Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia.
Data corrente: | 24/04/2021
Data da última atualização: | 12/07/2021
Autoria: | TÁVORA, F. T. P. K.; BEVITORI, R.; MELLO, R. N. de; CINTRA, M. M. D. F.; OLIVEIRA NETO, O. B.; FONTES, W.; CASTRO, M. S.; SOUSA, M. V.; FRANCO, O. L.; REIS, A. M. dos.
Afiliação: | FABIANO T. P. K. TÁVORA, UNIVERSIDADE FEDERAL DE JUIZ DE FORA, MG; ROSANGELA BEVITORI, CNPAF; RAQUEL NEVES DE MELLO, CNPAF; MARIA MONICA DOMINGUES F CINTRA, CNPAF; OSMUNDO B. OLIVEIRA NETO, CENTRO UNIVERSITARIO UNIEURO, Brasília-DF; WAGNER FONTES, UNIVERSIDADE DE BRASÍLIA; MARIANA S. CASTRO, UNIVERSIDADE DE BRASÍLIA; MARCELO V. SOUSA, UNIVERSIDADE DE BRASÍLIA; OCTAVIO L. FRANCO, UNIVERSIDADE CATÓLICA DE BRASÍLIA; ANGELA MEHTA DOS REIS, Cenargen.
Título: | Shotgun proteomics coupled to transient-inducible gene silencing reveal rice susceptibility genes as new sources for blast disease resistance.
Ano de publicação: | 2021
Fonte/Imprenta: | Journal of Proteomics, v. 241, 104223, June 2021.
ISSN: | 1874-3919
DOI: | https://doi.org/10.1016/j.jprot.2021.104223

Idioma:

Inglês
Português

Notas: | Na publicação: Angela Mehta.
Conteúdo: | A comparative proteomic analysis between two near-isogenic rice lines, displaying a resistant and susceptible phenotype upon infection with Magnaporthe oryzae was performed. We identified and validated factors associ-ated with rice disease susceptibility, representing a flourishing source toward a more resolute rice-blast resis-tance. Proteome profiles were remarkably different during early infection (12 h post-inoculation), revealing several proteins with increased abundance in the compatible interaction. Potential players of rice susceptibility were selected and gene expression was evaluated by RT-qPCR. Gene Ontology analysis disclosed susceptibility gene-encoded proteins claimed to be involved in fungus sustenance and suppression of plant immunity, such as sucrose synthase 4-like, serpin-ZXA-like, nudix hydrolase15, and DjA2 chaperone protein. Two other candidate genes, picked from a previous transcriptome study, were added into our downstream analysis including pyr-abactin resistant-like 5 (OsPYL5), and rice ethylene-responsive factor 104 (OsERF104). Further, we validated their role in susceptibility by Transient-Induced Gene Silencing (TIGS) using short antisense oligodeoxyr-ibonucleotides that resulted in a remarkable reduction of foliar disease symptoms in the compatible interaction. Therefore, we successfully employed shotgun proteomics and antisense-based gene silencing to prospect and functionally validate rice potential susceptibility factors, which could be further explored to build rice-blast resistance. Significance: R gene-mediated disease resistance is race-specific and often not durable in the field. More recently, advancements in new breeding techniques (NBTs) have made plant disease susceptibility genes (S-genes) a new target to build a broad spectrum and more durable resistance, hence an alternative source to R-genes in breeding programs. We successfully coupled shotgun proteomics and gene silencing tools to prospect and validate new rice-bast susceptibility genes that can be further exploited toward a more resolute blast disease resistance.
Palavras-Chave: | Gene ontology; Plant immunity; PTO-based TIGS; RT-qPCR; S-gene; Transient-Induced gene silencing.
Thesagro: | Arroz; Brusone; Doença de Planta; Oryza Sativa.
Thesaurus Nal: | blast disease; disease resistance; foliar diseases; Magnaporthe oryzae; plant diseases and disorders; proteomics; rice.

Categoria do assunto:

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S Ciências Biológicas

Registro original: | Embrapa Arroz e Feijão (CNPAF)

Exemplares:

CNPAF - (36019-1) - UPC - AP - DD - 2021 -  - 2021 - DIS
CENARGEN - (38524-1) - UPC - AP - DD -  -  -  - DIS