Flow cytophotometric and time-lapse cinematographic study of human cells infected by adenovirus type 2 wild-type and two DNA-negative temperature-sensitive mutants.

Flow cytophotometry and time-lapse cinematography were used to study viral DNA synthesis and alteration of the cellular DNA content of human cells infected by adenovirus type 2 wild-type and two DNA-negative temperature-sensitive mutants. Cell populations with DNA contents greater than 4n (where n represents the normal haploid DNA content of cells) were found after infection and their origin is discussed with regard to cell cycle changes, viral DNA replication and cell fusion or endomitosis.