正确答案:plaque forming unitPFU:The plaque assay is the most widly used assay for infectious virus.Monolayers ofhost cells are inoculated with suitable dilutions of virusand affter adsorption aye overlaid with medium containingagar or carboxyme thyicellulose to prevent virus spreadingthroughout the culture.Affter several daysthe cell s inital—ly infected have produced virus that spreads only to sur—rounding cellsproducing a small area of infection or plaque.Under controlled conditionsa single plaque can arise form a single infectious virus particletermed aplaque—forming unit.
plaque forming unit,PFU:The plaque assay is the most widly used assay for infectious virus.Monolayers ofhost cells are inoculated with suitable dilutions of virusand affter adsorption aye overlaid with medium containingagar or carboxyme thyicellulose to prevent virus spreadingthroughout the culture.Affter several days,the cell s inital—ly infected have produced virus that spreads only to sur—rounding cells,producing a small area of infection or plaque.Under controlled conditions,a single plaque can arise form. a single infectious virus particle,termed aplaque—forming unit.