Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 12
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Bacterial community characterization of water and intestine of the shrimp Litopenaeus stylirostris in a biofloc system ArchiMer
Cardona, Emilie; Gueguen, Yannick; Magré, Kevin; Lorgeoux, Bénédicte; Piquemal, David; Pierrat, Fabien; Noguier, Florian; Saulnier, Denis.
Background Biofloc technology (BFT), a rearing method with little or no water exchange, is gaining popularity in aquaculture. In the water column, such systems develop conglomerates of microbes, algae and protozoa, together with detritus and dead organic particles. The intensive microbial community presents in these systems can be used as a pond water quality treatment system, and the microbial protein can serve as a feed additive. The current problem with BFT is the difficulty of controlling its bacterial community composition for both optimal water quality and optimal shrimp health. The main objective of the present study was to investigate microbial diversity of samples obtained from different culture environments (Biofloc technology and clear...
Tipo: Text Palavras-chave: Shrimp; Biofloc; Clear sea water; Bacterial communities; Culture environment; Microbiota.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00346/45694/45314.pdf
Imagem não selecionada

Imprime registro no formato completo
Bacterial structure of agricultural soils with high and low yields. Repositório Alice
SANTOS, M. de S. dos; KAVAMURA, V. N.; REYNALDO, E. F.; SOUZA, D. T.; SILVA, E. H. F. M. da; MAY, A..
The purpose of this study was to evaluate the structure of bacterial communities at two agricultural fields in Brazil (Paraná (PR) and Bahia (BA) states) with a history of high and low productivity of soybean. 16S rRNA gene amplicons revealed that plots with low yield of grains showed greater bacterial richness than plots with high yield. The phylum Acidobacteria was more abundant in soil samples from PR site. The rhizosphere of plants presented a similar bacterial community for both high and low yield plots. Soil samples from BA showed differences in the diversity between the plots with high and low productivity. The use of 16S rRNA amplicon sequencing allowed the assessment of differences between plots with different soybean yields. This might be useful...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: 16S rRNA amplicons; Solo; Bactéria; Produtividade; Soja; Bacterial communities; Soil productivity; Soybeans.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1081425
Imagem não selecionada

Imprime registro no formato completo
Bioavailability of pollutants in bacterial communities of Rodrigo de Freitas Lagoon, Rio de Janeiro, Brazil BJM
Fonseca,E.M. da; Baptista Neto,J.A.; McAlister,J.J.; Smith,B.J.; Crapez,M.A.C..
Processes involving heavy metals and other contaminants continue to present unsolved environmental questions. To advance the understanding of geochemical processes that involve the bioavailability of contaminants, cores where collected in the Rodrigo de Freitas lagoon, and analyzed for bacterial activity and metal concentrations. Results would suggest an extremely reducing environment where organic substances seem to be the predominant agents responsible for this geochemical process. Analytical data showed sulphate reduction to be the main agent driving this process, since this kind of bacteria was found to be active in all of the samples analyzed. Esterase enzyme production did not signal the influence of heavy metals and hydrocarbon concentrations and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metals fraccionament; Bacterial communities; Sediment cores.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300027
Imagem não selecionada

Imprime registro no formato completo
Drought constrains the rhizosphere´s bacterial diversity in the semiarid over a broad landscape. Repositório Alice
TAKETANI, R. G.; LANÇONI, M. D.; KAVAMURA, V. N.; DURRER, A.; MELO, I. S. de.
2014
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Semi-árido; Seca; Bactéria; Bacterial communities.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1010895
Imagem não selecionada

Imprime registro no formato completo
Dynamics of cacti rhizosphere bacterial communities in the Brazilian semiarid climate. Repositório Alice
KAVAMURA, V. N.; FERREIRA, C.; TAKETANI, R. G.; MELO, I. S. de; MENDES, R..
2014
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Bactéria; Cacto; Cacti and succulents; Bacterial communities.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1010894
Imagem não selecionada

Imprime registro no formato completo
Evaluation of microbial and enzymatic communities in soil and rizosphere from soybean plants. Repositório Alice
SANTOS, M. S. dos; VILELA, E. S. D.; PAZIANOTTO, R. A. A.; REYNALDO, E. F.; SILVA, E. H. F. M. da; BUENO, A. C. S. O.; MAY, A..
Abstract: Understanding the biological and biochemical soil properties, as well as its enzymatic activity is important in designing an efficient alternative to demonstrate desired modifications in the soil. Such modifications are related to crop systems, cultivation practices or other human activities. The objective of this study was to evaluate the diversity of some microorganisms (Bacillus, Pseudomonas, Trichoderma and Fusarium) and enzymatic activity in soil from soybean crops with different yields. Soil sampling was determined according to the productivity yields of the property, which were divided into high, medium, and low yield. Microorganisms were evaluated by counting populations of fungi and bacteria through serial dilutions of total bacteria,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: P-nitrophenol-b-D-glucopyranoside; Rizosfera; Feijão; Bactéria; Solo; Enzima; Soja; Trichoderma; Fusarium; Bacillus (bacteria); Pseudomonas; Bacterial communities.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1093711
Imagem não selecionada

Imprime registro no formato completo
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: Artigo em periódico indexado (ALICE) 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
Imagem não selecionada

Imprime registro no formato completo
Les microplastiques : une menace en rade de Brest ? ArchiMer
Frere, Laura.
World production of plastics has increased steadily for the past decades leading to a major contamination of the worldwide aquatic ecosystems recently estimated at more than five trillion plastic pieces floating the surface of the oceans. Microplastics (plastic particles < 5 mm) are introduced into aquatic environments directly as industrial raw material (plastic pellets, cosmetics, clothing) or indirectly via the fragmentation of larger plastics. This emerging contaminant represents an increasing ecological concern for science and society. The present study focused on the microplastic contamination of the Bay of Brest (Brittany, France), a macrotidal coastal ecosystem characterized by intense anthropogenic activity. The main objectives were: (1) to...
Tipo: Text Palavras-chave: Microplastiques; Micro-spectroscopie Raman; Matrices environnementales; Rade de Brest; Polluant organique; Communautés bactériennes; Microplastics; Micro-spectroscopy Raman; Environmental matrices; Bay of Brest; Organic pollutant; Bacterial communities.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00497/60913/64266.pdf
Imagem não selecionada

Imprime registro no formato completo
Patterns of bacteria-host associations suggest different ecological strategies between two reef building cold-water coral species ArchiMer
Meistertzheim, Anne. -leila; Lartaud, Franck; Arnaud-haond, Sophie; Kalenitchenko, Dimitri; Bessalam, Manon; Le Bris, Nadine; Galand, Pierre E..
Cold-water corals (CWC) are main ecosystem engineers of the deep sea, and their reefs constitute hot-spots of biodiversity. However, their ecology remains poorly understood, particularly, the nature of the holobiont formed by corals with their associated bacterial communities. Here, we analysed Madrepora oculata and Lophelia pertusa samples, collected from one location in a Mediterranean canyon in two different seasons (autumn and spring), in order to test for species specificity and temporal stability of the host-bacteria associations. The 16S rRNA sequencing revealed host-specific patterns of bacterial communities associated with L. pertusa and M. oculata, both in terms of community composition and diversity. All analyzed M. oculata polyps exhibited...
Tipo: Text Palavras-chave: Deep-Sea corals; Madrepora oculata; Lophelia pertusa; Bacterial communities; Bacterial ecology; Mediterranean Sea; Microbe-microbe and microbe-host interactions.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00332/44362/43965.pdf
Imagem não selecionada

Imprime registro no formato completo
Rhizosphere bacterial community composition in wild and modern common bean. Repositório Alice
FLORES, S. W. S.; MENDES, L. W.; CHIARAMONTE, J. B.; MENDES, R..
2014
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Bactéria; Rhizosphere; Bacterial communities.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1010909
Imagem não selecionada

Imprime registro no formato completo
Soils properties outpaces agricultural practices in the determination of bacterial community structure in sugarcane fields. Repositório Alice
DURRER, A.; GUMIERE, T.; ANDRADE, P. A. M.; COSTA, D. P.; TAKETANI, R. G.; LIMA, J.; SILVA, M. P.; MELO, I. S. de; ANDREOTE, F. D..
2014
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Açúcar; Solo; Bacteria; Sugarcane; Soil properties; Bacterial communities.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1010693
Imagem não selecionada

Imprime registro no formato completo
Thermal regime and host clade, rather than geography, drive Symbiodinium and bacterial assemblages in the scleractinian coral Pocillopora damicornis sensu lato ArchiMer
Brener-raffalli, Kelly; Clerissi, Camille; Vidal-dupiol, Jeremie; Adjeroud, Mehdi; Bonhomme, Francois; Pratlong, Marine; Aurelle, Didier; Mitta, Guillaume; Toulza, Eve.
Background: Although the term holobiont has been popularized in corals with the advent of the hologenome theory of evolution, the underlying concepts are still a matter of debate. Indeed, the relative contribution of host and environment and especially thermal regime in shaping the microbial communities should be examined carefully to evaluate the potential role of symbionts for holobiont adaptation in the context of global changes. We used the sessile, long-lived, symbiotic and environmentally sensitive reef-building coral Pocillopora damicornis to address these issues. Results: We sampled Pocillopora damicornis colonies corresponding to two different mitochondrial lineages in different geographic areas displaying different thermal regimes: Djibouti,...
Tipo: Text Palavras-chave: Coral holobiont; Microbiota; Bacterial communities; Symbiodinium assemblages; Thermal adaptation; Scleractinian corals; Coral reefs; Pocillopora damicornis.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00429/54076/55380.pdf
Registros recuperados: 12
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional