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Inorganic nitrogen application affects both taxonomical and predicted functional structure of wheat rhizosphere bacterial communities. Repositório Alice
KAVAMURA, V. N.; HAYAT, R.; CLARK, I. M.; ROSSMANN, M.; MENDES, R.; HIRSCH, P. R.; MAUCHLINE, T. H..
The effects of fertilizer regime on bulk soil microbial communities have been well studied, but this is not the case for the rhizosphere microbiome. The aim of this work was to assess the impact of fertilization regime on wheat rhizosphere microbiome assembly and 16S rRNA gene-predicted functions with soil from the long term Broadbalk experiment at Rothamsted Research. Soil from four N fertilization regimes (organic N, zero N, medium inorganic N and high inorganic N) was sown with seeds of Triticum aestivum cv. Cadenza. 16S rRNA gene amplicon sequencing was performed with the Illumina platform on bulk soil and rhizosphere samples of 4-week-old and flowering plants (10 weeks). Phylogenetic and 16S rRNA gene-predicted functional analyses were performed....
Tipo: Separatas Palavras-chave: Nitrogênio inorgânico; Trigo; Fertilizante nitrogenado; Impacto ambiental; Rizosfera; Wheat; Rhizosphere; Microbiome; Nitrogen fertilizers; Environmental impact; Bacterial communities; Functional diversity; Sustainable agricultural intensification.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1105404
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Land management and microbial seed load effect on rhizosphere and endosphere bacterial community assembly in wheat. Repositório Alice
KAVAMURA, V. N.; ROBINSON, R. J.; HAYAT, R.; CLARK, I. M.; HUGHES, D.; ROSSMANN, M.; HIRSCH, P. R.; MENDES, R.; MAUCHLINE, T. H..
Abstract: Microbial community ecology studies have traditionally utilized culture-based methodologies, though the advent of next-generation amplicon sequencing has facilitated superior resolution analyses of complex microbial communities. Here, we used culture-dependent and -independent approaches to explore the influence of land use as well as microbial seed load on bacterial community structure of the wheat rhizosphere and root endosphere. It was found that niche was an important factor in shaping the microbiome when using both methodological approaches, and that land use was also a discriminatory factor for the culture-independent-based method. Although culture-independent methods provide a higher resolution of analysis, it was found that in the...
Tipo: Artigo de periódico Palavras-chave: Endosphere; Rizosfera; População Microbiana; Manejo do Solo; Trigo; Semente; Rhizosphere; Microbiome; Wheat; Seeds.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1115412
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Rhizobacterial community dynamics of resistant and susceptible wheat genotypes in the presence of the pathogen Fusarium graminearum. Repositório Alice
COSTA, L. S. A. S.; FARIA, M. R. de; CHIARAMONTE, J. B.; MAUCHLINE, T. H.; BETTIOL, W.; MENDES, R..
The rhizosphere is an environment influenced by a range of beneficial functions to plants such as nutrient uptake, stress tolerance, and defense against soil-borne pathogens. During the fungal invasion, a number of specifics bacterial families and function are enriched in the rhizosphere to fend off plant infection. Thus, considering that the host plant relies on the rhizosphere microbiome for protection against soil-borne pathogens, we hypothesized that plant domestication impacted this interaction between the plant and soil microbiome. Therefore, in this study, we compared wheat landraces and modern cultivars to understand the rhizobacterial community dynamics during Fusarium graminearum invasion. The disease evaluation and rhizosphere soil collection...
Tipo: Separatas Palavras-chave: Plant-microbe interaction; Plant domestication.; Plant protection..
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116400
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Wheat dwarfing influences selection of the rhizosphere microbiome. Repositório Alice
KAVAMURA, V. N.; ROBINSON, R. J.; HUGHES, D.; CLARK, I. M.; ROSSMANN, M.; MELO, I. S. de; HIRSCH, P. R.; MENDES, R.; MAUCHLINE, T. H..
Abstract: The development of dwarf wheat cultivars combined with high levels of agrochemical inputs during the green revolution resulted in high yielding cropping systems. However, changes in wheat cultivars were made without considering impacts on plant and soil microbe interactions. We studied the effect of these changes on root traits and on the assembly of rhizosphere bacterial communities by comparing eight wheat cultivars ranging from tall to semi-dwarf plants grown under field conditions. Wheat breeding influenced root diameter and specific root length (SRL). Rhizosphere bacterial communities from tall cultivars were distinct from those associated with semi-dwarf cultivars, with higher differential abundance of Actinobacteria, Bacteroidetes and...
Tipo: Artigo de periódico Palavras-chave: Trigo; Rizosfera; Melhoramento Genético Vegetal; Microbiologia do Solo; Wheat; Dwarf cultivars; Rhizosphere; Ribosomal RNA; Plant breeding; Microbiology.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1123855
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Wheat rhizosphere bacterial communities and protection against root rot caused by Bipolaris sorokiniana. Repositório Alice
COSTA, L. S. A. S.; FARIA, M. R. de; CHIARAMONTE, J. B.; MAUCHLINE, T. H.; BETTIOL, W.; MENDES, R..
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...
Tipo: Separatas Palavras-chave: Plant microbe interactions; Plant domestication; Rizosfera; Trigo; Wheat; Plant protection; Bipolaris..
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116405
Registros recuperados: 5
Primeira ... 1 ... Última
 

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