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. 1980 May;34(2):506–511. doi: 10.1128/jvi.34.2.506-511.1980

Incomplete influenza virus: partial functional complementation as revealed by hemadsorbing cell count test.

N V Kaverin, L I Kolomietz, I A Rudneva
PMCID: PMC288730  PMID: 7373719

Abstract

In MDCK cells inoculated with an appropriate dilution of influenza virus, single hemadsorbing cells could be counted 8 h postinfection against a background of nonadsorbing cells. Standard virus preparation exhibited a linear relationship between the virus dilution and the number of hemadsorbing cells. With incomplete virus preparations obtained by passages of undiluted virus in chicken embryo, the dependence was nonlinear. A ts mutant (ts-29) of A/FPV/Weybridge (Hav1 Neq1) failed to convert MDCK cells into a hemadsorbing state at 42 degrees C. The ability of ts-29 to produce hemadsorbing cells could be rescued by incomplete wild-type virus. The capacity of incomplete virus for this partial functional complementation was inactivated by UV irradiation with one-hit kinetics. The size of the target was estimated to be 5.5 times smaller than that of the virus genome. The results suggest that at least some of the influenza virus genes in defective interfering particles are functional.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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