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Registros recuperados: 11
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Analysis of the rhizosphere microbial communities of common beans resistant and susceptible to Fusarium oxysporum. Repositório Alice
MENDES, L. W.; MENDES, R.; TSAI, S. M..
The rhizosphere is the narrow zone of soil around the living plant roots that is influenced by the activity of the plants. Many beneficial microorganisms in the rhizosphere provide plants with mineral nutrients, phytohormones, and also help to protect the plant against soil-borne pathogens. Microbiological studies are addressed to understand how rhizosphere microorganisms are recruited from soil and either benefit or harm plant growth, nutrition and health. Here, we aimed to identify potential microbial groups and functional traits correlated to the suppression of the soil borne pathogen Fusarium oxysporum, the causal agent of Fusarium wilt on common beans. We used shotgun metagenomics to investigate the rhizosphere microbiome of two common bean cultivars...
Tipo: Separatas Palavras-chave: Shotgun metagenomics; Soil born pathogen.; Feijão; Fusarium Oxysporum.; Microbiome.; Microbial ecology.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1036665
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Analysis of the rhizospheric microbial community of common bean resistant to soil pathogen. Repositório Alice
MENDES, L. W.; MENDES, R.; TSAI, S. M..
Tipo: Separatas Palavras-chave: Rhizospheric.; Microbial community; Bactéria.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1010913
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Back to the roots: revealing beneficial interactions between the rhizosphere microbiome and wild wheat. Repositório Alice
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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Breeding for resistance to soil-borne pathogen impacts rhizosphere microbiome functions in common bean. Repositório Alice
MENDES, L. W.; MENDES, R.; RAAIJMAKERS, J. M.; TSAI, S. M..
Over the past century, plant breeding programs have substantially improved plant growth and health, but have not yet considered the potential effects on the plant microbiome. Here, we conducted a metatranscriptome analysis to determine if and how breeding for resistance of common bean against the root pathogen Fusarium oxysporum (Fox) affected gene expression in the rhizobacterial community. Our data revealed that rhizobacterial community assembly of Fox-resistant and susceptible bean cultivars follows niche-based mechanisms, presenting lower diversity and distinct community structure compared to the bulk soil. The microbiome of the Fox-resistant bean cultivar presented a significantly higher expression of bacterial genes associated with nutrient...
Tipo: Separatas Palavras-chave: Rizosfera; Feijão; Microbiome; Rhizosphere; Beans; Breeding.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103238
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Functional diversity of bacterial genes associated with aromatic hydrocarbon degradation in anthropogenic dark earth of Amazonia. Repositório Alice
GERMANO, M. G.; CANNAVAN, F. S.; MENDES, L. W.; LIMA, A. B.; TEIXEIRA, W. G.; PELLIZARI, V. H.; TSAI, S. M..
The objective of this work was to evaluate the catabolic gene diversity for the bacterial degradation of aromatic hydrocarbons in anthropogenic dark earth of Amazonia (ADE) and their biochar (BC). Functional diversity analyses in ADE soils can provide information on how adaptive microorganisms may influence the fertility of soils and what is their involvement in biogeochemical cycles. For this, clone libraries containing the gene encoding for the alpha subunit of aromatic ring-hydroxylating dioxygenases (a-ARHD bacterial gene) were constructed, totaling 800 clones. These libraries were prepared from samples of an ADE soil under two different land uses, located at the Caldeirão Experimental Station - secondary forest (SF) and agriculture (AG) -, and the...
Tipo: Artigo de periódico Palavras-chave: Catabolic genes; Genetic diversity; Land use system; Tropical soil.; Microbial ecology..
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/927700
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Genetically related genotypes of cowpea present similar bacterial community in the rhizosphere. Repositório Alice
ALBUQUERQUE, T. M. de; MENDES, L. W.; ROCHA, S. M. B.; ANTUNES, J. E. L.; OLIVEIRA, L. M. de S.; MELO, V. M. M.; OLIVEIRA, F. A. S.; PEREIRA, A. P. de A.; SILVA, V. B. da; GOMES, R. L. F.; ALCANTARA NETO, F. de; LOPES, A. C. de A.; ROCHA, M. de M.; ARAUJO, A. S. F..
Plant breeding reduces the genetic diversity of plants and could influence the composition, structure, and diversity of the rhizosphere microbiome, selecting more homogeneous and specialized microbes. In this study, we used 16S rRNA sequencing to assess the bacterial community in the rhizosphere of different lines and modern cowpea cultivars, to investigate the effect of cowpea breeding on bacterial community assembly.
Tipo: Artigo de periódico Palavras-chave: Vigna Unguiculata; Variedade; Melhoramento Genético Vegetal.
Ano: 2022 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1143248
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Metagenomic analysis of the rhizosphere microbiome of the common bean resistant to Fusarium oxysporum. Repositório Alice
MENDES, L. W.; MENDES, R.; TSAI, S. M..
The rhizosphere microbiome plays a key role in the functioning of the host plant, influencing its physiology and development. It has been suggested that plants use mechanisms present in the rhizosphere microbiome to fend off infections, such as fungal diseases. This work aimed to assess the microbial community inhabiting the common bean rhizosphere in order to identify potential groups related to the suppression of the soil-borne pathogen Fusarium oxysporum. Therefore, using shotgun metagenomic sequencing (Illumina Miseq), we investigated the phylogenetic and potential functional diversity of microbial communities colonizing the rhizosphere of four cultivars of common bean with different levels of resistance to the fungus, ranging from high susceptibility...
Tipo: Separatas Palavras-chave: Metagenômica.; Feijão; Fusarium Oxysporum.; Metagenomics..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1036658
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Mining of the endophytic microbiome for novel biosynthetic genes and antifungal metabolites. Repositório Alice
CARRION, V. J.; PÉREZ-JARAMILLO, J.; CORDOVEZ, V.; HOLLANDER, M. de; TRACANNA, V.; MENDES, L. W.; MENDES, R.; MEDEMA, M. H.; RAAIJMAKERS, J. M..
Endophytic microbes have been proposed to contribute to a range of plant support functions, including nutrient acquisition and disease protection. To date, the molecular mechanisms underlying disease protection in the endosphere have only been studied for individual culturable organisms. Here, we conducted a systematic microbiome-wide perspective on the taxonomic diversity and functional potential of the endophytic microbiome of plants grown in an agricultural soil that is naturally suppressive to damping-off disease caused by the fungal root pathogen Rhizoctonia solani. Metagenomic analyses showed an enrichment of Burkholderiaceae, Chitinophagaceae and Xanthomonadaceae in the endosphere of plants grown in disease-suppressive soil challenged with the...
Tipo: Separatas Palavras-chave: Microbiome; Antifungal agents; Metagenomics.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103500
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Resistance breeding of common bean shapes the physiology of the rhizosphere microbiome. Repositório Alice
MENDES, L. W.; CHAVES, M. G. de; FONSECA, M. de C.; MENDES, R.; RAAIJMAKERS, J. M.; TSAI, S. M..
Abstract: The taxonomically diverse rhizosphere microbiome contributes to plant nutrition, growth and health, including protection against soil-borne pathogens. We previously showed that breeding for Fusarium-resistance in common bean changed the rhizosphere microbiome composition and functioning. Here, we assessed the impact of Fusarium-resistance breeding in common bean on microbiome physiology. Combined with metatranscriptome data, community-level physiological profiling by Biolog EcoPlate analyses revealed that the rhizosphere microbiome of the Fusarium-resistant accession was distinctly different from that of the Fusarium-susceptible accession, with higher consumption of amino acids and amines, higher metabolism of xylanase and sialidase, and higher...
Tipo: Artigo de periódico Palavras-chave: Plant-microbe interactions; Metatranscriptome; Biolog EcoPlate; Nutrientmetabolism; Resistome; Feijão; Resistência; Microbiologia do Solo; População Microbiana; Soil-plant interactions; Beans; Disease resistance; Microbiome; Carbohydrate metabolism.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1115347
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Rhizosphere bacterial community composition in wild and modern common bean. Repositório Alice
FLORES, S. W. S.; MENDES, L. W.; CHIARAMONTE, J. B.; MENDES, R..
Tipo: Separatas Palavras-chave: Bactéria; Rhizosphere; Bacterial communities.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1010909
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Rhizosphere microbial community composition of common beans with different levels of resistance to Fusarium oxysporum. Repositório Alice
MENDES, L. W.; MENDES, R.; TSAI, S. M..
Microbial communities in the rhizosphere make significant contributions to plant health, growth and protection against soil pathogens. Plants can take advantage of their rhizosphere microbiomes to fend off pathogens, avoiding microbial infections. Here, we aimed to identify potential microbial groups and functional traits correlated to the suppression of the soil borne Microbial diversity and functioning in the soil ecosystem 145 pathogen Fusarium oxysporum. Through shotgun metagenomics we investigated the rhizosphere microbial communities of four common bean cultivars with different levels of resistance to the fungus, ranging from susceptible to resistant. Plants were grown in mesocosms experiments with two contrasting soils, i.e. Amazon Dark Earth (ADE)...
Tipo: Separatas Palavras-chave: Comunidade microbiana.; Feijão; Fusarium Oxysporum; Rizosfera..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1036657
Registros recuperados: 11
Primeira ... 1 ... Última
 

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