Growth and genetic stability of the ts 1 mutant of respiratory syncytial virus at restrictive temperatures

T. J. Schnitzer, L. S. Richardson, R. M. Chanock

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

An in vitro study was performed to define in greater detail those factors which favored the growth of the ts-1 mutant of respiratory syncytial virus under restrictive conditions and the emergence of genetically altered virus with decreased temperature sensitivity. Replication of ts-1 occurred at each of the restrictive temperatures of 37, 38 and 39 C, even though plaque formation was not observed. The level of virus growth under restrictive conditions was inversely related to the incubation temperature and directly related to the multiplicity of infection. These relationships appeared to reflect the effect of restrictive temperature in reducing the quantity of virus produced and released from an infected cell. Under restrictive conditions, the production of genetically altered virus which exhibited temperature sensitivity was directly related to the multiplicity of infection and inversely related to temperature. Production of genetically altered virus was not observed under permissive conditions.

Original languageEnglish (US)
Pages (from-to)431-438
Number of pages8
JournalJournal of virology
Volume17
Issue number2
DOIs
StatePublished - 1976

ASJC Scopus subject areas

  • Microbiology
  • Immunology
  • Insect Science
  • Virology

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