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| Mayer,S.V.; de Quadros,V.L.; Vogel,F.S.F.; Winkelmann,E.R.; Arenhart,S.; Weiblen,R.; Flores,E.F.. |
| Bovine herpesvirus type 5 (BHV-5) is a major agent of meningoencephalitis in cattle and establishes latent infections mainly in sensory nerve ganglia. The distribution of latent BHV-5 DNA in the brain of rabbits prior to and after virus reactivation was studied using a nested PCR. Fifteen rabbits inoculated intranasally with BHV-5 were euthanized 60 days post-inoculation (group A, N = 8) or submitted to dexamethasone treatment (2.6 mg kg-1 day-1, im, for 5 days) and euthanized 60 days later (group B, N = 7) for tissue examination. Two groups of BHV-1-infected rabbits (C, N = 3 and D, N = 3) submitted to each treatment were used as controls. Viral DNA of group A rabbits was consistently detected in trigeminal ganglia (8/8), frequently in cerebellum (5/8),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine herpesvirus type 5; BHV-5; BHV-1; Latent infection; Rabbits; Brain. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000300004 |
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| Silveira,José R.P.; Duarte,Valmir; Moraes,Marcelo G.; Lopes,Carlos A.; Fernandes,José M.; Barni,Valmor; Maciel,João L.N.. |
| The objectives of this study were to evaluate the progress of Ralstonia solanacearum bacterial potato wilt biovar 2 (race 3) in 14 potato (Solanum tuberosum L.) cultivars or clones, the resistance of potato clone MB 03 (selected in Brasília, Brazil) to race 1 of R. solanacearum, and the occurrence of the pathogen in tubers harvested from asymptomatic potato plants. During the spring (September to the end of November in the southern hemisphere) of 1999 and 2000, 14 cultivars or clones were grown in a field naturally infested with R. solanacearum biovar 2, in Caxias do Sul, RS. The number of wilted potato plants was recorded each week and a disease progress curve plotted, the resistance of the potato genotypes to bacterial wilt being evaluated by determining... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial wilt; Disease progress; Latent infection; Logistic; Monomolecular; Gompertz. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582007000300001 |
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