Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 378
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
Antibacterial activity of plant extracts from Brazil against fish pathogenic bacteria BJM
Castro,S.B.R.; Leal,C.A.G.; Freire,F.R.; Carvalho,D.A.; Oliveira,D.F.; Figueiredo,H.C.P..
The aim of this work was to evaluate the antibacterial activity of Brazilian plants extracts against fish pathogenic bacteria. Forty six methanolic extracts were screened to identify their antibacterial properties against Streptococcus agalactiae, Flavobacterium columnare and Aeromonas hydrophila. Thirty one extracts showed antibacterial activity.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant extracts; Bacteria; Fish.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400030
Imagem não selecionada

Imprime registro no formato completo
Antifouling effect of bioactive compounds from marine sponge Acanthella elongata and different species of bacterial film on larval attachment of Balanus amphitrite (cirripedia, crustacea) BABT
Ganapiriya,Viswambaran; Maharajan,Athisuyambulingam; Kumarasamy,Pothiappan.
The antifouling activity of bioactive compounds from marine sponge Acanthella elongata (Dendy) and five species of bacterial biofilm were studied. Larvae of Balanus amphitrite (Cyprids and nauplii) were used to monitor the settlement inhibition and the extent to which inhibition was due to toxicity. The crude extract and partially purified fractions of A.elongata showed significant inhibition over the settlement individually, and with the interaction of bacterial species. No bacterial film stimulated the barnacle settlement. The high but variable levels of antifouling activity in combination with less amount of toxicity showed the potential of these metabolites in environmentally-friendly antifouling preparations.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biofouling; Bacterial film; Bacteria; Barnacles; Cyprids; B. amphitrite.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000300010
Imagem não selecionada

Imprime registro no formato completo
Antimicrobial and enzymatic activity of anemophilous fungi of a public university in Brazil Anais da ABC (AABC)
SOBRAL,LAUREANA V.; MELO,KELLY N.; SOUZA,CLECIANA M.; SILVA,SÍLVIO F.; SILVA,GILVANIA L.R.; SILVA,ANDRESSA L.F.; WANDERLEY,KATHARINE A.A.; OLIVEIRA,IDJANE S.; CRUZ,ROBERTA.
ABSTRACT To the fungal microbiota the UFPE and biotechnological potential enzymatic and antimicrobial production. Air conditioned environments were sampled using a passive sedimentation technique, the air I ratio and the presence of aflatoxigenic strains evaluated for ANVISA. Icelles were to determine the enzymatic activity of lipase, amylase and protease metabolic liquids to determine antimicrobial activity. Diversity was observed in all CAV environments, CFU/m3 ranged from 14 to 290 and I/E ratio from 0.1 to 1.5. The of the fungal genera were: Aspergillus (50%), Penicillium (21%), Talaromyces (14%), Curvularia and Paecilomyces (7% each). Aspergillus sydowii (Bainier & Sartory) Thom & Church presented enzymatic activity and the Talaromyces...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Air quality; Bacteria; Enzymes; Filamentous fungi; Refrigerated environments.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502327
Imagem não selecionada

Imprime registro no formato completo
Ardra profiles of bacteria and archaea in mangrove sediments with different levels of contamination in the estuarine complex of Paranaguá, Brazil BABT
Ribeiro,Catherine Gérikas; Steffens,Maria Berenice Reynaud; Etto,Rafael Mazer; Galvão,Carolina Weigert; Martins,César de Castro; Pedrosa,Fábio de Oliveira; Kolm,Hedda Elisabeth.
The mangrove's sediments from the coastal areas under human activities may contain significant contaminations by hydrocarbons, even when there are no visual evidences of it. The microorganisms are essential to these ecosystems, especially in the control of their chemical environment. Sediment samples were collected in two regions under different environment conditions (pristine and contaminated) of the Paranaguá Estuarine Complex (Paranaguá Bay and Laranjeiras Bay), Brazil. Aliphatic hydrocarbons were determined by the GC-FID to assess the status of contamination of the studied areas. The total DNA was extracted from these samples. The 16S rRNA gene was amplified by the PCR reactions with the pair of primers 21F and 958R for the archaeal domain, and 27F...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diversity; Mangroves; Archaea; Bacteria; 16S rRNA; ARDRA; Aliphatic hydrocarbons.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000200013
Imagem não selecionada

Imprime registro no formato completo
ASSESSMENT OF JEDDAH PARKS HEALTH STATUS BY Cyperus rotundus AND SOIL ANALYSIS UNDER WASTE WATER IRRIGATION Planta Daninha
EL-NAKHLAWY,F.S.; AL-SHAREEF,A.R.; IHSAN,M.Z..
ABSTRACT To investigate the health status of public parks in Jeddah city, a field survey was conducted based on the Cyperus rotundus weed and soil analysis of wastewater-irrigated parks during 2012. The city was divided into five different locations (North, South, East, West and Middle) and five parks were randomly sampled from each location; thus, the total number of sampled parks were twenty five. Toxic metals concentration were analyzed in the soil and in the plants while bacterial count was determined from the weed leaves. All studied toxic metals have significantly crossed the European Union safety limits for plant samples, while soil samples were just beyond the limit. The highest concentration was perceived for Lead (133-232 mg kg-1) and was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cyperus rotundus; Chromium; Bacteria; Parks health; Waste water irrigation.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100213
Imagem não selecionada

Imprime registro no formato completo
Assessment of viability in the bacterial standing stock of the Antarctic sea from the Indian side ArchiMer
Loka Bharathi, Pa; Nair, S; Bd De Souza, Mj; Chandramohan, D.
During the austral summer, we examined the bacterial population along the cruise track extending from 70degrees S and 18degrees E to 30degrees S and 35degrees E. During the cruise, three distinct fractions of the bacterioplankton viz. total count, total direct viable and retrievable counts were simultaneously enumerated in these waters. In the stations south of the convergent region designated as section I the population ranged within 10(8-9) L-1 whereas in the north of the region designated as section 11 they were one order higher and ranged from 10(9-10) L-1. The percentage of viability in the region was high corresponding to the generally high chlorophyll and primary productivity encountered in the eastern Aghulas bank. The study substantiates the...
Tipo: Text Palavras-chave: Bactérie; Viabilité; Océan Antarctique; Secteur indien; Bacteria; Viability; Antarctic ocean; Indian side.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43334/42893.pdf
Imagem não selecionada

Imprime registro no formato completo
Avaliação da atividade antimicrobiana in vitro do extrato bruto de cipó de alho Mansoa alliacea em isolados bacterianos de peixes. Repositório Alice
BATISTA, L. M.; ALMEIDA, A. F. de; ARAÚJO, A. S.; GRIPP, T. X.; CARDOSO, F. M. N.; LIMA, L. S.; NASCIMENTO, Y. B. G.; TAVARES-DIAS, M.; YOSHIOKA, E. T. O.; RODRIGUES, D. dos P.; PROIETTI JÚNIOR, A. A..
O estado do Amapá está localizado no norte do Brasil, possuindo rica biodiversidade, onde diferentes aspectos apresentam tênue conhecimento ou ainda são desconhecidos. Entre estes se destaca o conhecimento quanto a etiologia das infecções no homem, tendo como veículo o peixe, que representa relevante aspecto de saúde pública, especialmente quando consumido cru ou após tratamento térmico inadequado. Microrganismos podem permanecer viáveis nos peixes estocados a baixas temperaturas, condição física que os permite sobreviver, multiplicar e produzir fatores de virulência, capazes ainda de ocasionar infecções oportunistas. Assim, Staphylococcus aureus, Salmonella spp., Escherichia coli e Aeromonas spp. podem ser usados como marcadores de sanidade em alimentos....
Tipo: Parte de livro Palavras-chave: Microrganismo; Bacteria; Extrato vegetal; Planta medicinal.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1052411
Imagem não selecionada

Imprime registro no formato completo
Avaliação do gene psec de Corynebacterium pseudotuberculosis como candidato a duas formulações vacinais contra linfadenite caseosa. Repositório Alice
ALVARENGA, L. C. O.; SOARES, C. O.; SANTOS, l. R; COELHO, M. de B.; SILVA, C. S.; GONÇALVES, A. N. D.; CARVALHO, C. E. G.; ROSINHA, G. M. S..
Tipo: Anais e Proceedings de eventos Palavras-chave: Doença infecto-contagiosa; Lesão necrótica; Corynebacterium pseudotuberculosis; Bacteria; Profilaxia; DNA.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1051579
Imagem não selecionada

Imprime registro no formato completo
Azospirillum spp. from native forage grasses in Brazilian Pantanal floodplain: biodiversity and plant growth promotion potential. Repositório Alice
SOUZA, M. S. T.; BAURA, V. A. de; SANTOS, S. A.; FERNANDES JUNIOR, P. I.; REIS JUNIOR, F. B. dos; MARQUES, M. R.; PAGGI, G. M.; BRASIL, M. da S..
A sustainable alternative to improve yield and the nutritive value of forage is the use of plant growth promoting bacteria (PGPB) that release nutrients, synthesize plant hormones and protect against phytopathogens (among other mechanisms). Azospirillum genus is considered an important PGPB, due to the beneficial effects observed when inoculated in several plants. The aim of this study was to evaluate the diversity of new Azospirillum isolates and select bacteria according to the plant growth promotion ability in three forage species from the Brazilian Pantanal floodplain: Axonopus purpusii, Hymenachne amplexicaulis and Mesosetum chaseae. The identification of bacterial isolates was performed using specific primers for Azospirillum in PCR reactions and...
Tipo: Artigo de periódico Palavras-chave: FBN; Fixação biológica de nitrogênio; Biological nitrogen fixation; Diazotrophic bacteria.; Planta; Biodiversidade; Bacteria; Graminea; Azospirillum brasilense..
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1068877
Imagem não selecionada

Imprime registro no formato completo
Bacillus thuringiensis survey in Brazil: geographical distribution and insecticidal activity against Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) Neotropical Entomology
Valicente,Fernando H.; Barreto,Marliton R..
A total of 3408 strains of Bacillus thuringiensis were collected from 1448 soil samples in 10 Brazilian states, four different geographical regions, covering 96 counties. These strains were evaluated against Spodoptera frugiperda (J.E. Smith) larvae. Only 62% killed between 81% and 100% and 1758 caused no mortality. Highest proportion of efficient strains (larval mortality above 75%) was found from the total isolated per region in the South Region (16.6%), followed by Western Central (3.1%), Southeast (1.1%) and Northeast Region (0.4%).
Tipo: Info:eu-repo/semantics/report Palavras-chave: Insect; Bacteria; Native isolate; Biological control; Pathology.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000400014
Imagem não selecionada

Imprime registro no formato completo
Bacteria and protozoa populations in groundwater in landfill area in São Carlos, SP Rev. Microbiol.
Fusconi,Roberta; Godinho,Mirna Januária Leal.
The microbial populations of groundwaters were analyzed in a region under the influence of a landfill (piezometer L12) in the town of São Carlos, São Paulo, Brazil, and in an area not influenced by the landfill (piezometer L5). Heterotrophic bacteria were counted by spread plate method and the number of protozoa was estimated by the most probable number method. There was a larger number of organisms in well L12, with a mean value of 15.76 x 104 CFU/ml for bacteria and 9.7 MPN/ml for protozoa, whereas the mean values for piezometer L5 were 2.88 x 104 CFU/ml for bacteria and 3.4 MPN/ml for protozoa. The greater abundance detected in piezometer L12 may be related to the influence of the leachate through the landfill on the microbial populations, also...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacteria; Protozoa; Groundwater; Landfill.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000300003
Imagem não selecionada

Imprime registro no formato completo
Bacteria and yeast associated with sugar beet root rot at harvest in the Intermountain West NWISRL
Strausbaugh, C.A.; Gillen, A.M..
Tipo: Article Palavras-chave: Bacteria.
Ano: 2008 URL: http://eprints.nwisrl.ars.usda.gov/1260/1/1237.pdf
Imagem não selecionada

Imprime registro no formato completo
Bacterial characterization in biofertilizer Hortibio. Repositório Alice
FONTENELLE, M. R.; SANTOS, K. C. B.; BOMFIM, C. A.; MENDES, L. S.; VALE, H. M. M.; LIMA, C. E. P.; REIS JUNIOR, F. B. dos; CARVALHO, A. D. F. de.
Resumo 716-2, on line.
Tipo: Parte de livro Palavras-chave: Actinomycetes; Effective micro-organisms; Organic fertilization; Bacteria; Biofertilizante.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1031946
Imagem não selecionada

Imprime registro no formato completo
Bacterial colonization of winter flounder Pseudopleuronectes americanus fed live feed enriched with three different commercial diets ArchiMer
Seychelles, L. H.; Audet, C.; Tremblay, R.; Lemarchand, K.; Pernet, Fabrice.
The proliferation of bacteria in intensive aquaculture systems may be responsible for poor growth and mass mortality of marine fish larvae. Essential fatty acids provided in the diet could protect larvae by modulation of the immune response via arachidonic acid (AA) and eicosapentaenoic acid (EPA). Winter flounder Pseudopleuronectes americanus larvae were fed rotifers Brachionus plicatilis enriched with three commercial diets containing different fatty acid profiles. Bacterial colonization on the gills and skin and in the intestinal lumen was evaluated at the end of the rotifer feeding period (day 26), and growth was surveyed until metamorphosis. At 26 days post hatching, larvae fed rotifers containing the higher AA content and with a higher...
Tipo: Text Palavras-chave: Bacteria; Colonization; Fatty acids; Live feed; Winter flounder.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00031/14273/12399.pdf
Imagem não selecionada

Imprime registro no formato completo
Bacterial contamination in milk kitchens in pediatric hospitals in Salvador, Brazil BJID
Cairo,Romilda Castro; Silva,Luciana Rodrigues; Andrade,Carol Ferreira de; Barberino,Maria Goreth de Andrade; Bandeira,Antônio Carlos; Santos,Kleber Pimentel; Diniz-Santos,Daniel R..
Milk may represent an important source of infectious agents to hospitalized pediatric patients. To describe the bacterial microflora isolated from the hands, stools, pharynx of all workers at milk kitchens in pediatric hospitals in the city of Salvador, Brazil, as well as in the formulas prepared by them, we carried out this cross-sectional study with all 91 workers from the 20 milk kitchens of all the public and private hospitals in Salvador, Brazil. Hand and pharynx swabs and stool samples were collected from all workers, as well as samples of the milk and formulas delivered by the kitchens. All samples were cultured for the detection of pathogenic and non-pathogenic bacteria. Pathogenic bacteria were isolated from 20 (22.0%) and 8 (8.8%) cultures of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacteria; Microflora; Hands; Faeces; Pharynx; Milk; Contamination; Hospital; Children.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000300011
Imagem não selecionada

Imprime registro no formato completo
Bacterial diversity in relatively pristine and anthropogenically-influenced mangrove ecosystems (Goa, India) BJM
Fernandes,Sheryl Oliveira; Kirchman,David L.; Michotey,Valérie D.; Bonin,Patricia C.; LokaBharathi,P.A..
To appreciate differences in benthic bacterial community composition at the relatively pristine Tuvem and the anthropogenically-influenced Divar mangrove ecosystems in Goa, India, parallel tag sequencing of the V6 region of 16S rDNA was carried out. We hypothesize that availability of extraneously-derived anthropogenic substrates could act as a stimulatant but not a deterrent to promote higher bacterial diversity at Divar. Our observations revealed that the phylum Proteobacteria was dominant at both locations comprising 43-46% of total tags. The Tuvem ecosystem was characterized by an abundance of members belonging to the class Deltaproteobacteria (21%), ~ 2100 phylotypes and 1561 operational taxonomic units (OTUs) sharing > 97% similarity. At...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacteria; Denitrification; Diversity; Mangroves; Sediments.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400006
Imagem não selecionada

Imprime registro no formato completo
Bacterial diversity in rice-field water in Rio Grande do Sul BJM
Reche,Maria Helena Lima Ribeiro; Fiuza,Lídia Mariana.
Bacteria are the most diverse living beings on earth and only a fraction of them have been identified. This paper aims at the analysis of the diversity of mesophilic and heterotrophic bacteria found in samples of irrigation water from rice-fields areas in Rio Grande do Sul State, Brazil. Sample collection was carried out in five rice crop regions areas and followed by isolation, multiplication and bacterial characterization. The species' identification was based on biochemical tests (API-System, bioMérieux). Bacterial diversity was determined by the Shannon & Weaner and Pielou index. The results regarding bacterial diversity revealed 26 species. The most abundant representatives belonged to the Bacillus, Corynebacterium, Staphylococcus and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacteria; Diversity; Water; Rice-field.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000300009
Imagem não selecionada

Imprime registro no formato completo
Bacterial diversity in soil in response to different plans, phosphate fertilizers and liming BJM
Silva,Paulo da; Nahas,Ely.
The diversity of bacterial isolates from soil in response to different plants (control, Brachiaria ruziziensis and Cajanus cajan), fertilization (control, simple superphosphate and rock phosphate) and liming (with and without lime) was evaluated. Phenotypic and physiological characteristics of the isolates were recorded and organized in a file to identify the bacteria. Among the isolates, 95% were Gram-positive and 5% Gram-negative rods. Soil cultivated with B. ruziziensis favored the nonsporing Gram-positive and Gram-negative rods compared to soils with C. cajan or uncultivated. Number of spore-forming Gram-positive rods were higher in plots with superphosphate than in unfertilized soil or soil fertilized with rock phosphate. In unfertilized plots, larger...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacteria; Phosphate; Brachiaria ruziziensis; Cajanus cajan; Liming.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000400005
Imagem não selecionada

Imprime registro no formato completo
Bacterial Dynamics in a Microphytobenthic Biofilm: a Tidal Mesocosm Approach ArchiMer
Agogue, Helene; Mallet, Clarisse; Orvain, Francis; De Crignis, Margot; Mornet, Francoise; Dupuy, Christine.
In intertidal mudflats, during low tide exposure, microphytobenthos (MPB) migrate vertically through the surface sediment and form, with the heterotrophic bacteria, a transient biofilm. Inside this biofilm, multiple interactions exist between MPB and bacteria. These micro-organisms secrete a wide range of extracellular polymeric substances (EPS), which are major components of the biofilm matrix. In this study, we used a tidal mesocosm experiment in order to decipher the interactions of the MPB-EPS-bacteria complex within the biofilm. We tried to determine if the EPS could control bacterial activities and/or production and/or richness according to the age of the biofilm and to the immersion/emersion period. The dynamics of biomasses of MPB and prokaryotes,...
Tipo: Text Palavras-chave: Muddy sediment; Microphytobenthos; Bacteria; Extracellular polymeric substances; Interactions; Mesocosm.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00181/29271/27682.pdf
Imagem não selecionada

Imprime registro no formato completo
Bacterial inactivation using pulsed light ArchiMer
Elmnasser, Noura; Ritz, Magali; Leroi, Francoise; Orange, Nicole; Bakhrouf, Amina; Federighi, Michel.
Pulsed light is a new method intended for the decontamination of food surfaces using short, high frequency pulses of an intense broad spectrum. The effects of broad spectrum pulsed light on the survival of Listeria monocytogenes Scott A, Listeria monocytogenes CNL, Pseudomonas fluorescens MF37 and Photobacterium phosphoreum SF680 populations on agar and in a liquid medium were investigated during this study. The sterilisation system generated 1.5 J cm(-2) per pulse with eight lamps for 300 mu s. In the case of surface-seeded cells, a 7.8, 8.14 and > 7.14 log reduction was obtained for L. monocytogenes, Ps. fluorescens MF37 and Ph. phosphoreum, respectively, after a single pulse of treatment. Inactivation levels were lower for depth-plated cells: indeed,...
Tipo: Text Palavras-chave: Efficiency; Inactivation; Bacteria; Treatment; Pulsed light.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-3041.pdf
Registros recuperados: 378
Primeira ... 123456789 ... 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