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| Registros recuperados: 14 | |
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| ROSSMANN, M.; PÉREZ-JARAMILLO, J. E.; CHIARAMONTE, J. B.; KAVAMURA, V. N.; DUMACK, K.; FIORE-DONNO, A. M.; MENDES, L. W.; BONKOWSKI, M.; MAUCHLINE, T.; RAAIJMAKERS, J. M.; MENDES, R.. |
| Domestication of plants may have impacted the interactions between plants and their rhizosphere microbiome. Considering that plants rely on the rhizosphere microbiome for functions related with plant growth, nutrition and health, the objective of this work was to analyse the rhizosphere microbiome of wild relatives and modern varieties of wheat and to investigate whether wild relatives recruit a higher proportion of beneficial microbes than modern cultivars. By 16S-rRNA gene amplicon, ITS and 18SrRNA gene amplicon, we assessed the bacterial, fungal and cercozoa rhizosphere community composition of five modern cultivars and three wheat ancestors cultivated in forest and agricultural soils. Results revealed a pronounced soil type and rhizosphere effect on... |
| Tipo: Separatas |
Palavras-chave: Wild wheat; Trigo; Rizosfera; Rhizosphere; Wheat; Microbiome. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103217 |
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| FLORES, S. W. S.; CHIARAMONTE, J. B.; ROSSMANN, M.; MENDES, R.. |
| Abstract: Plants rely on their rhizosphere microbiome for specific functions, such as, nutrient acquisition and protection against diseases. The domestication and subsequent plant breeding neglected the important role of the rhizosphere microbiome on plant performance. Here, we tested the hypothesis that ancestor materials have higher ability to host beneficial microorganisms in the rhizosphere when compared to modern cultivars. For this, we assessed the composition and functionality of the rhizosphere microbiome associated with a wild (Wild Mex) and with a cultivated (IAC Alvorada) common bean grown in highly biodiverse soil (Amazonian Dark Earth). Antagonistic bacteria were isolated from common bean rhizosphere and total rhizosphere DNA was extracted for... |
| Tipo: Separatas |
Palavras-chave: Wild common bean; Metagenome; Rhizobacteria; Metagenomics; Microbial communities. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1036667 |
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| CARVALHO, J. C. de; COSTA, L. S. A. S.; CHIARAMONTE, J. B.; ROSSMANN, M.; MENDES, R.. |
| Resumo: O processo de domesticação do trigo, como outras espécies cultivadas, está relacionado à formação de civilizações sedentárias. A domesticação consiste na seleção de caracteres fenotípicos úteis para uso humano. A transição do ambiente natural para sistemas de produção modernos geram diversas mudanças no ambiente que podem acarretar em impactos na microbiota do solo cultivado. As plantas vivem em associação com microrganismos que auxiliam em funções como defesa, saúde e crescimento da planta, e esta associação deve-se a um longo processo de coevolução. Assumindo que existe a dependência dessa microbiota, acredita-se que cultivares modernos perderam algumas características para recrutar microrganismos específicos do hospedeiro durante o processo de... |
| Tipo: Separatas |
Palavras-chave: Domesticação de plantas; Microbioma da rizosfera; Interação planta-microbioma; Trigo; Rizosfera; Microbiome; Domestication; Wheat; Soil-plant interactions. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1105014 |
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| 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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| 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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| FARIA, M. R. de; COSTA, L. S. A. S.; CHIARAMONTE, J. B.; ROSSMANN, M.; BETTIOL, W.; MENDES, R.. |
| The sustainable agriculture requires the use of advanced and modern technologies with the capacity to increase productivity to feed a world growing population demand. In this context, plant breeding associated with the studies of the rhizosphere microbiome may be an innovative strategy in plant protection against soil-borne pathogens. However, few studies investigate the structure and biodiversity of microbial communities in ancestral genotypes and recent cultivars associated with the plant defense process. Thereby, considering the impact of domestication and plant breeding on interactions in the plant rhizosphere microbiome, in this study, we compared the tolerance level of ancestral and recent wheat genotypes to Bipolaris sorokiniana and its correlation... |
| Tipo: Separatas |
Palavras-chave: Plant domestication; Plant microbe interaction.; Rizosfera; Trigo; Plant protection.. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103523 |
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| CHIARAMONTE, J. B.; BULGARELLI, D.; COSTA, L. S. A. S.; ROSSMANN, M.; MENDES, R.. |
| Acid soils are known for their high phosphate fixation potential, leading to an overage application of fertilizers. Microorganisms play important role in nutrient availability in the rhizosphere helping plants with phosphorus mobilization and uptake. We hypothesize that less efficient cultivars in phosphorus uptake, insoluble sources of phosphorus and limiting conditions of phosphorus in the soil could enrich the rhizosphere microbiome related to the availability of this nutrient. We performed a completely randomized factorial experiment with two common bean cultivars contrasting in phosphorus uptake efficiency growing in triple superphosphate or rock phosphate gradients. Sequencing of 16S rRNA amplicons were performed to access the rhizosphere community... |
| Tipo: Separatas |
Palavras-chave: Beans; Rhizosphere; Phosphorus. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103542 |
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| KAVAMURA, V. N.; CLARK, I.; HIRSCH, P. R.; CAULFIELD, J.; SARRIA, A. F.; ROSSMANN, M.; BIRKETT, M.; MELO, I. S. de; MENDES, R.; MAUCHLINE, T.. |
| During the Green Revolution, wheat breeding developed high-yielding plants with dwarfing genes. This selection led to structural changes in wheat, which could have consequences for the associated microbial communities, however, to date, little is known about these. The main goal of this work was to study rhizosphere bacterial communities from eight hexaploid wheat cultivars grown under field conditions ranging in chronology from Chidham White Chaff, a tall cultivar from 1790, to Crusoe, a semi dwarf cultivar from 2012. Plants were harvested, DNA from rhizosphere soil was extracted and 16S rRNA gene subjected to Illumina amplicon sequencing. Root architecture information and exudate profiles were obtained. The breeding process appears to have influenced... |
| Tipo: Separatas |
Palavras-chave: Wheat; Rhizosphere; Roots. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103550 |
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| 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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| COSTA, L. S. A. S.; FARIA, M. R. de; CHIARAMONTE, J. B.; ROSSMANN, M.; BETTIOL, W.; MENDES, R.. |
| The rhizosphere microbiome is essential for health and development of plants, providing protection against pests and diseases. Domestication of plant species may have affected the biodiversity of microbial communities in ancestral plant roots compared to the modern plants, which may have changed the defense process. As ancestral genotypes and modern cultivars may present different levels of tolerance to the pathogens, we investigated the correlation between eight wheat genotypes, including wild materials and cultivars, and the structure of microbial communities in the rhizosphere. We evaluated the variation in susceptibility to the pathogen by inoculating Fusarium graminearum in the soil six days after sowing. The level of disease was assessed four weeks... |
| Tipo: Separatas |
Palavras-chave: Wheat; Rhizosphere; Roots. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103553 |
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| Registros recuperados: 14 | |
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