3 documents found, page 1 of 1
Variações sazonais da composição química e índice de condição da amêijoa-boa, R...
Aníbal, J.; Viegas, A. S.; Geraldes, A.; Francisco, VitorA nível nacional, por reunir as condições mais propícias para a reprodução e desenvolvimento da amêjoa-boa (Ruditapes decussatus), a Ria Formosa constitui o mais importante centro de exploração desta espécie de elevado valor comercial, representando cerca de 80% das amêijoas comercializadas em Portugal. O cultivo é realizado em viveiros, explorados por mariscadores, organizados em associações. Uma estimativa co...
Evidence for an acid phosphatase in African swine fever virus
Valdeira, Maria Luisa; Duque-Magalhães, M. C.; Geraldes, A.An acid phosphatase activity has been detected in purified preparations of African swine fever virus. Purified viral cores obtained after Nonidet-P40 and 2-mercaptoethanol treatment of the virus retained the activity as assayed with nitrophenyl phosphate as substrate at pH 5. Enzyme cytochemistry by electron microscopy showed that the acid phosphatase activity is localized mainly inside the core of the virion. ...
Effect of chloroquine on african swine fever virus infection
Geraldes, A.; Valdeira, M.L.When present during the whole infective cycle, the lysosomotropic drug, chloroquine, inhibited cytopathic changes and production of African swine fever virus (ASFV) in Vero cells. This inhibition decreased when the drug was added from 1 h to 4 h after infection. Chloroquine had no direct effect on the virus nor on viral adsorption and internalization. Electron microscopy showed that, in the presence of the drug...