| Texto completo | |
| Autor(es): |
Schaker, Patricia D. C.
;
Palhares, Alessandra C.
;
Taniguti, Lucas M.
;
Peters, Leila P.
;
Creste, Silvana
;
Aitken, Karen S.
;
Van Sluys, Marie-Anne
;
Kitajima, Joao P.
;
Vieira, Maria L. C.
;
Monteiro-Vitorello, Claudia B.
Número total de Autores: 10
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PLoS One; v. 11, n. 9 SEP 1 2016. |
| Citações Web of Science: | 9 |
| Resumo | |
Sugarcane smut disease is caused by the biotrophic fungus Sporisorium scitamineum. The disease is characterized by the development of a whip-like structure from the primary meristems, where billions of teliospores are produced. Sugarcane smut also causes tillering and low sucrose and high fiber contents, reducing cane productivity. We investigated the biological events contributing to disease symptoms in a smut intermediate-resistant sugarcane genotype by examining the transcriptional profiles (RNAseq) shortly after inoculating the plants and immediately after whip emission. The overall picture of disease progression suggests that premature transcriptional reprogramming of the shoot meristem functions continues until the emergence of the whip. The guidance of this altered pattern is potentially primarily related to auxin mobilization in addition to the involvement of other hormonal imbalances. The consequences associated with whip emission are the modulation of typical meristematic functions toward reproductive organ differentiation, requiring strong changes in carbon partitioning and energy production. These changes include the overexpression of genes coding for invertases and trehalose-6P synthase, as well as other enzymes from key metabolic pathways, such as from lignin biosynthesis. This is the first report describing changes in the transcriptional profiles following whip development, providing a hypothetical model and candidate genes to further study sugarcane smut disease progression. (AU) | |
| Processo FAPESP: | 10/05591-9 - Estudos genéticos do fungo Sporosorium scitamineum, agente causador de carvão em cana-de-açúcar |
| Beneficiário: | Claudia Barros Monteiro Vitorello |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 15/07112-4 - Ligando os fatos sobre a interação molecular da cana-de-açúcar e o fungo biotrófico patogênico Sporisorium scitamineum, causador do carvão da cana |
| Beneficiário: | Claudia Barros Monteiro Vitorello |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 12/09524-0 - Estudos moleculares sobre a interação cana-de-açúcar x Sporisorium scitamineum, o agente causal do carvão |
| Beneficiário: | Alessandra Carolina Palhares |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 14/17034-8 - Tratamento Bioinformático em Larga Escala de Sequências de Cana de Açúcar |
| Beneficiário: | Lucas Mitsuo Taniguti |
| Modalidade de apoio: | Bolsas no Brasil - Programa Capacitação - Treinamento Técnico |
| Processo FAPESP: | 13/25599-2 - Estudo da modulação do metabolismo da cana-de-açúcar pelo fungo fitopatogênico Sporisorium scitamineum |
| Beneficiário: | Patricia Dayane Carvalho Schaker |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |