Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/42788
Título: Transcriptome analyses suggest that changes in fungal endophyte lifestyle could be involved in grapevine bud necrosis
Palavras-chave: Grapevine - Diseases
Double pruning management
RNA-seq libraries
Alternaria alternata
Videira - Doenças e pragas
Videira - Dupla poda
Necrose da gema
Microrganismos endofíticos
Data do documento: Jun-2020
Editor: Springer Nature
Citação: RIBEIRO, T. H. C. et al. Transcriptome analyses suggest that changes in fungal endophyte lifestyle could be involved in grapevine bud necrosis. Scientific Reports, [S. I.], v. 10, 2020. DOI: https://doi.org/10.1038/s41598-020-66500-0.
Resumo: Bud necrosis (BN) is a common disorder that affects Vitis vinifera L. and reduces its potential yield. To minimize the losses caused by BN, the double pruning management was applied in Brazilian Southeast vineyards. In this management strategy plants are pruned at the winter to promote a vegetative cycle and then, at summer, to promote the reproductive cycle at optimal environmental conditions. To investigate the relationship of BN and the double pruning management RNA-seq libraries were sequenced from healthy and necrotic tissues at four different stages of the year. The comparison of differentially expressed genes in necrotic and non-necrotic tissues showed an enhanced expression of genes related to cell death possibly induced by endophytic microorganisms in the necrotic tissues. The de novo assembly, characterization and quantification of transcripts within the RNA-seq libraries showed that genes from the endophytic fungus Alternaria alternata, responsible for the production of toxic compounds were highly expressed under BN. Here we propose a model in which unfavorable conditions and reduced carbohydrate levels in buds can promote the switch from a biotrophic lifestyle to a necrotrophic lifestyle in the endophytic fungi, which seems to be involved in the development of BN.
URI: http://repositorio.ufla.br/jspui/handle/1/42788
Aparece nas coleções:DBI - Artigos publicados em periódicos



Este item está licenciada sob uma Licença Creative Commons Creative Commons