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| Registros recuperados: 255 | |
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| Carvalho,Daiane; Finkler,Fabrine; Grassotti,Tiela Trapp; Kunert Filho,Hiran Castagnino; Lima,Francisco Esmaile de Sales; Soares,Beatriz Dugaich; Rossato,Juliana Marzari; Cunha,Augusto César da; Brito,Kelly Cristina Tagliari de; Brito,Benito Guimarães de. |
| The study aimed to evaluate the antimicrobial susceptibility of 109 samples of Escherichia coli (E. coli) of environmental origin and to characterize these isolates according to the degree of pathogenicity in vivo, verifying a possible relationship between this variable and susceptibility to the active principles tested. The isolates were subjected to disc diffusion test to 14 antibiotics. From 16.5% to 90% of the samples were sensitive; 1 - 28.5% showed intermediate degree of susceptibility and between 9 to 78% of E. coli analyzed were resistant. The highest resistance percentages were seen in the class of quinolones and tetracyclines (>75%), and for sensitivity in the class of amphenicols (68.8%). By inoculating 1- day - old chicks, the isolates... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Escherichia coli; Resistance; Antimicrobials; Pathogenicity; Poultry.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701249 |
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| Silva,Rodrigo Otávio Silveira; Oliveira Junior,Carlos Augusto; Diniz,Amanda Nádia; Alves,Guilherme Guerra; Guedes,Roberto Maurício Carvalho; Vilela,Eduardo Garcia; Lobato,Francisco Carlos Faria. |
| The objective of this study was to evaluate antimicrobial susceptibility in Clostridium difficile strains isolated from animals and humans in Brazil. The 54 C. difficile strains used were isolated from stool samples from piglets (n=16), dogs (n=13), humans (n=13), foals (n=8) calves (n=2), an ocelot (n=1) and a maned wolf (n=1). Antimicrobial susceptibility was determined using the serial plate agar dilution method for penicillin, florfenicol, oxytetracycline, erythromycin, vancomycin, metronidazole and tylosin. The C. difficile strains assessed were susceptible to metronidazole and vancomycin. Florfenicol resistance was rarely observed; 52 (96.4%) strains were sensitive to this antimicrobial. Five (9.3%), five (9.3%), 14 (25.9%) and 20 (37.0%) strains... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nosocomial diarrhea; Pseudomembranous colitis; Resistance. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000500013 |
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| Matos,Eliana Dias; Lemos,Antônio Carlos Moreira; Bittencourt,Carolina; Mesquita,Cristiane Leite. |
| Anti-tuberculosis drug resistance, particularly multiresistance, is a crucial issue in the control of tuberculosis (TB). This study estimated the prevalence of primary and acquired anti-tuberculosis drug resistance in strains of Mycobacterium tuberculosis isolated from hospitalized patients, to identify the risk factors for resistance, and to evaluate the its impact on hospital mortality for tuberculosis. Strains of Mycobacterium tuberculosis from 217 patients hospitalized for TB were analyzed. Subjects were recruited sequentially at a TB reference hospital in Salvador, Bahia, Brazil from July 2001 to July 2003. Multiresistant (MR) strains were defined as strains resistant to rifampicin and isoniazid. Of a total of 217 strains isolated, 41 (19.0%, 95%CI:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium tuberculosis; Tuberculosis; Resistance; Multiresistance; Hospitals; Bahia-Brazil. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000300007 |
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| López-Herrera,A.; Ruiz-Sáenz,J.; Góez,Y.P.; Zapata,W.; Velilla,P.A.; Arango,A.E.; Urcuqui-Inchima,S.. |
| To determine whether fibroblasts from Blanco Orejinegro cattle, exhibit any level of resistance to infection against vesicular stomatitis virus (VSV) serotypes Indiana (VSV-I) or New Jersey (VSVNJ), 30 fibroblast cultures were phenotyped to evaluate their resistance/susceptibility. Thirty three % of Blanco Orejinegro fibroblast cultures were classified as very resistant, 50% as resistant, and 17% as susceptible to VSV-I infection, whereas 20% were classified as very resistant, 50% as resistant and 30% as susceptible to VSV-NJ infection. Therefore, there appears to be a large variation in phenotypic polymorphism among the fibroblasts to infection by VSV. To elucidate the mechanisms responsible for this diversity, we searched for a possible relationship... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vesicular stomatitis virus; Apoptosis; Resistance; Bovine fibroblasts (Source: NLM). |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452009000200007 |
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| Singh,Atul; Singh,Pratap; Tiwari,A K; Sharma,B L. |
| ABSTRACT Red rot, caused by Colletotrichum falcatum Went is the most important disease of sugarcane in India inflicting substantial loss to both cane industry and cane growers. To keep in view the importance of red rot disease of sugarcane, 117 accession of sugarcane germplasm including different Saccharum species and Indian and foreign commercial hybrids were tested against red rot with Cf 07, Cf 08 & Cf 09 (national pathotypes) by plug method of inoculation. Out of 117, 6 were found resistant and 12 were moderately resistant against red rot and rest were moderately susceptible/susceptible/highly susceptible. Theses resistance and moderately resistant accession can be further utilize to produce resistance varieties against the most devastating... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sugarcane; Germplasm; Resistance; Red rot; Plug method. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100203 |
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| Sousa,José Américo de; Silva-Souza,Ângela Teresa. |
| A bacteriological study was conducted on fish and water from Congonhas River, Sertaneja (22º58 S; 50º58 W), Paraná State, Brazil. From 44% of the analysed fish, bacteria belonging to Pseudomonas, Acinetobacter, Aeromonas, Enterobacteriaceae, Micrococcus, Bacillus and Lactobacillus were isolated. The group most frequently isolated from fish was Aeromonas. In the water, the bacterial groups detected were Pseudomonas, Acinetobacter, Aeromonas, Enterobacteriaceae, Bacillus and Flavobacterium, from which Flavobacterium and Acinetobacter were the most abundant. The numbers of Colony Forming Units per millilitre of water varied from 3.1x10² to 1.0 x 10³. Although a clear pattern was not detected in the susceptibilities/resistances of the isolated strains to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial community; Fish; Congonhas River; Aeromonas; Pseudomonas; Resistance. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000400007 |
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| Panella, Leonard W.; Strausbaugh, C.A.. |
| Twenty-two sugar beet (Beta vulgaris L.) lines from the USDA-ARS Ft. Collins sugar beet program were screened for resistance to Beet severe curly top virus (BSCTV) and other closely related Curtovirus species in 2011. Commercial cultivars Monohikari and HM PM90 were included as susceptible and resistant checks, respectively. The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID which has Portneuf silt loam soil and had been in barley in 2010. The field was plowed both in the fall and the spring, fertilized (80 lb N and 120 lb P2O5/A) on 20 Apr 11, sprayed with Ethotron (2 pt/A), and roller harrowed. The germplasm was planted (density of 142,560 seeds/A) on 16 May. The plots consisted of two rows 10 ft long with 22-in row... |
| Tipo: Article |
Palavras-chave: Curly top; Resistance; Sugarbeet. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1492/1/1456.pdf |
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| Strausbaugh, C.A.; Eujayl, I.A.. |
| Curly top caused by Beet curly top virus is a widespread disease problem vectored by the beet leafhopper in semiarid sugar beet production areas. Host resistance is the primary defense against this problem, but resistance in commercial cultivars is only low to intermediate. In order to identify novel sources of curly top resistance, 14 sugar beet lines were screened in a disease nursery in 2015. The lines were arranged in a randomized complete block design with six replications. A curly top epiphytotic was created by releasing six viruliferous beet leafhoppers per plant at the four-to six-leaf growth stage on 24 Jun. Foliar symptoms were evaluated on 13 and 20 Jul using a scale of 0-9 (0 = healthy and 9 = dead) in a continuous manner. Curly top... |
| Tipo: Article |
Palavras-chave: Curly top; Resistance; Sugarbeet. |
| Ano: 2016 |
URL: http://eprints.nwisrl.ars.usda.gov/1616/1/1573.pdf |
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| Strausbaugh, C.A.; Panella, Leonard W.. |
| Curly top caused by Beet curly top virus (BCTV) is a widespread disease problem vectored by the beet leafhopper in semiarid sugar beet production areas. Host resistance is the primary defense against this problem, but resistance in commercial cultivars is only low to intermediate. In order to identify novel sources of curly top resistance, twenty-four plant introduction (PI) lines were screened in a disease nursery in 2014. The lines were arranged in a randomized complete block design with three replications. A curly top epiphytotic was created by releasing approximately 6 viruliferous beet leafhoppers per plant at the four- to six-leaf growth stage on 23 Jun. Foliar symptoms were evaluated on 16 Jul using a scale of 0-9 (0 = healthy and 9 = dead) in a... |
| Tipo: Article |
Palavras-chave: Curly top; Resistance; Verticillium wilt. |
| Ano: 2015 |
URL: http://eprints.nwisrl.ars.usda.gov/1588/1/1546.pdf |
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| Freitas,C.M.V.; Leite,R.C.; Oliveira,P.R.; Fernández,F.C.. |
| The development of acquired resistance to Amblyomma cajennense ticks was evaluated. A total of 18 rabbits were uniformly distributed into three groups named GL, GN, and GA that were submitted to three consecutive infestations with, respectively, larvae, nymphs, and adults of A. cajennense. After the infestations, the parasitic and reproductive parameters of recovered instars were evaluated. A significant reduction of recovery rates of inoculated ticks was observed only after the third infestation of animals in groups GL and GN (P<0.01). The modal day for drop-off of engorged larvae and nymphs increased along the infestations. The recovered engorged nymphs presented a significant reduction of the mean body weight between the first and the third... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tick; Ixodide; Resistance; Immunity; Infestation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000500011 |
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| Ribeiro,Claudia SC; Souza,Karina RR; Carvalho,Sabrina IC; Reifschneider,Francisco JB. |
| ABSTRACT: The Habanero hot pepper group is not well known in Brazil, despite its origin in the Amazon. Nevertheless, domestic and international markets have been increasing the demand for this type of hot pepper. The Brazilian agroindustry is interested in supplying part of this demand with high quality products and competitive prices, and it needs well-adapted cultivars. To fill this gap, Embrapa Vegetables developed the Habanero pepper cultivar BRS Juruti, which meets the demands of both the market for fresh fruit and the processing agroindustry of mash and sauces. Cultivar BRS Juruti has red fruits and yielded around 50 t/ha (36,000 plants/ha). Fruit pungency is circa 260,000 SHU and fruits have high content of vitamin C (122 mg/100 g). BRS Juruti is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum chinense; Breeding; Resistance; Processing; Capsaicin.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362015000400527 |
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| Fraire Cordero, Ma. de Lourdes. |
| La calidad postcosecha de Brócoli está asociada con la buena sanidad de los floretes. En los últimos años, la ‘pudrición de florete’ ha causado pérdidas por afectar la calidad; sin embargo, a pesar de algunos estudios, los agentes causales no han sido completamente identificados. Durante el 2005 y 2006 se colectaron floretes con síntomas de pudrición, de los cuales se aisló e identificó, morfológica y molecularmente, a Alternaria tenuissima, A. alternata y Fusarium oxysporum. Las pruebas de patogenicidad confirmaron a esos hongos como los causantes de la enfermedad. En un trabajo posterior, se observó que A. tenuissima penetró a través de los estomas de los sépalos, entre las 16 y 18 h después de que el conidio fue depositado en la superficie. Y la... |
| Tipo: Tesis |
Palavras-chave: Brassica oleracea var. italica; Resistencia; Peronospora parasitica; Doctorado; Fitopatologia; Resistance. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1335 |
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| Fraire Cordero, María de Lourdes. |
| La calidad postcosecha de Brócoli está asociada con la buena sanidad de los floretes. En los últimos años, la ‘pudrición de florete’ ha causado pérdidas por afectar la calidad; sin embargo, a pesar de algunos estudios, los agentes causales no han sido completamente identificados. Durante el 2005 y 2006 se colectaron floretes con síntomas de pudrición, de los cuales se aisló e identificó, morfológica y molecularmente, a Alternaria tenuissima, A. alternata y Fusarium oxysporum. Las pruebas de patogenicidad confirmaron a esos hongos como los causantes de la enfermedad. En un trabajo posterior, se observó que A. tenuissima penetró a través de los estomas de los sépalos, entre las 16 y 18 h después de que el conidio fue depositado en la superficie. Y la... |
| Tipo: Tesis |
Palavras-chave: Brassica oleracea var. italica; Resistencia; Peronospora parasitica Brassica oleracea var. italica; Resistance; Peronospora parasitica. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1042 |
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| Registros recuperados: 255 | |
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