Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116405
Registro completo de metadados
Campo DCValorIdioma
dc.contributor.authorCOSTA, L. S. A. S.pt_BR
dc.contributor.authorFARIA, M. R. dept_BR
dc.contributor.authorCHIARAMONTE, J. B.pt_BR
dc.contributor.authorMAUCHLINE, T. H.pt_BR
dc.contributor.authorBETTIOL, W.pt_BR
dc.contributor.authorMENDES, R.pt_BR
dc.date.accessioned2019-12-10T18:18:16Z-
dc.date.available2019-12-10T18:18:16Z-
dc.date.created2019-12-09
dc.date.issued2019
dc.identifier.citationIn: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 51., 2019, Recife. Os avanços da fitopatologia na era genômica: anais. Recife: SBF, UFRPE, 2019.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1116405-
dc.descriptionThe rhizosphere microbiome is essential for the health and development of plants, providing protection against pests and diseases. Thus, assuming that plants depend, at least in part, on the rhizosphere microbiome as a product of natural selection, we hypothesized that domestication of plant species may have affected the biodiversity of microbial communities, which may have impacted the plant-microbiome defense mechanism. Thus, we promote the enrichment of the rhizosphere microbiome in contrasting materials for resistance against the soil-borne pathogen Bipolaris sorokiniana. The disease evaluation and rhizosphere soil collection were repeated in a total of 5 cycles, in microcosm pot. Rhizosphere community structure was assessed through 16S rRNA amplicon sequencing. In addition, the population dynamics of the pathogen was investigated by DNA quantification through the qPCR technique. The soils of genotype resistant showed a high level of disease over cycles, on the other hand, the soil of susceptible genotypes presented a low level of disease, suggesting an ability to disease suppression over monoculture cycles. In general, those treatments without pathogen showed an increase of disease level over cycles. The results showed a pronounced rhizosphere effect (bulk soil sample clustered separately from rhizosphere sample) and cycle effect revealing a shift in microbial communities over cycles, and more homogenous pattern in cycles 4 and 5. The ordination analysis showed strong genotype effect revealing a clustered separately between genotypes resistant and susceptible. There was an increase in the DNA numbers copies of the pathogen followed by a decreased over cycles. The taxonomic composition showed enrichment mainly for the phylum Acidobacteria, Choloroflexi, and Firmicutes, and reduction for the phylum Proteobacteria and Bacteroidetes over time. In conclusion, our results indicated that where occurred a low level of disease (susceptible genotypes) a number of specifics bacterial families and function were enriched in the rhizosphere to fend off plant infection, selecting over time an antagonistic community with the ability to suppression pathogen.pt_BR
dc.language.isoporpt_BR
dc.rightsopenAccesspt_BR
dc.subjectPlant microbe interactionspt_BR
dc.subjectPlant domesticationpt_BR
dc.titleWheat rhizosphere bacterial communities and protection against root rot caused by Bipolaris sorokiniana.pt_BR
dc.typeResumo em anais e proceedingspt_BR
dc.date.updated2019-12-10T18:18:16Z
dc.subject.thesagroRizosferapt_BR
dc.subject.thesagroTrigopt_BR
dc.subject.nalthesaurusWheatpt_BR
dc.subject.nalthesaurusPlant protectionpt_BR
dc.subject.nalthesaurusBipolarispt_BR
dc.format.extent2p. 148.pt_BR
riaa.ainfo.id1116405pt_BR
riaa.ainfo.lastupdate2019-12-10
dc.contributor.institutionL. S. A. S. COSTA, Embrapa Meio Ambiente; M. R. de FARIA, FCA/UNESP; J. B. CHIARAMONTE, ESALQ; T. H. MAUCHLINE, Rothamsted Research, West Common, Harpenden, Hertfordshire UK; WAGNER BETTIOL, CNPMA; RODRIGO MENDES, CNPMA.pt_BR
Aparece nas coleções:Resumo em anais de congresso (CNPMA)

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
RABettiolWetal51CBFitopatologia2019p148.pdf7,55 MBAdobe PDFThumbnail
Visualizar/Abrir
Mostrar registro simples do item Visualizar estatísticas

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace