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| 224. | | SIVIERO, A.; ABREU, L. S. de; MENDES, R.; GOMES, F. C. da R. O consumo de produtos agroecológicos no Acre. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 46., 2008, Rio Branco. Amazônia, mudanças globais e agronegócios: o desenvolvimento em questão. Brasília, DF: Sober; Rio Branco: Ufac, 2008. 16 p. 1 CD-ROM.| Biblioteca(s): Embrapa Acre. |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
|
Data corrente: |
09/12/2019 |
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Data da última atualização: |
09/08/2021 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
COSTA, L. S. A. S.; FARIA, M. R. de; CHIARAMONTE, J. B.; MAUCHLINE, T. H.; BETTIOL, W.; MENDES, R. |
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Afiliação: |
L. 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. |
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Título: |
Wheat rhizosphere bacterial communities and protection against root rot caused by Bipolaris sorokiniana. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 51., 2019, Recife. Os avanços da fitopatologia na era genômica: anais. Recife: SBF, UFRPE, 2019. |
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Páginas: |
p. 148. |
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Idioma: |
Português |
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Conteúdo: |
The 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. MenosThe 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 g... Mostrar Tudo |
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Palavras-Chave: |
Plant domestication; Plant microbe interactions. |
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Thesagro: |
Rizosfera; Trigo. |
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Thesaurus NAL: |
Bipolaris; Plant protection; Wheat. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/206638/1/RA-BettiolW-et-al-51CBFitopatologia-2019-p148.pdf
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Marc: |
LEADER 03046nam a2200265 a 4500
001 2116405
005 2021-08-09
008 2019 bl uuuu u00u1 u #d
100 1 $aCOSTA, L. S. A. S.
245 $aWheat rhizosphere bacterial communities and protection against root rot caused by Bipolaris sorokiniana.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 51., 2019, Recife. Os avanços da fitopatologia na era genômica: anais. Recife: SBF, UFRPE$c2019
300 $ap. 148.
520 $aThe 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.
650 $aBipolaris
650 $aPlant protection
650 $aWheat
650 $aRizosfera
650 $aTrigo
653 $aPlant domestication
653 $aPlant microbe interactions
700 1 $aFARIA, M. R. de
700 1 $aCHIARAMONTE, J. B.
700 1 $aMAUCHLINE, T. H.
700 1 $aBETTIOL, W.
700 1 $aMENDES, R.
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Embrapa Meio Ambiente (CNPMA) |
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