Isolation of a baculovirus variant that exhibits enhanced polyhedra production stability during serial passage in cell culture
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Journal of Invertegrate Pathology. 67: 153-160.
The formation of few polyhedra mutants during serial propagation of baculoviruses in cell culture encumbers commercial scale production in this system. A Lymantria dispar nuclear polyhedrosis virus (LdMNPV) variant (isolate A21-MPV) has been isolated and the traits of budded virus (BV) production, synthesis of polyhedra, the percentage of cells that produce polyhedra, and the formation of few polyhedra (FP) mutants were investigated during serial passage of the variant in L. dispar 652Y cells. Isolate A21-MPV exhibited stable levels of BV production and polyhedra production and a small increase in the percentage of cells that produced polyhedra during five serial passages in cell culture. In contrast, isolate A21, a wildtype isolate, exhibited a significant increase in BV production and a decrease in polyhedra production and in the number of cells that produced polyhedra during five serial passages.
KeywordsLymantria dispar; L. dispar 652Y cell line; L. dispar M nuclear polyhedrosis virus; few polyhedra mutant; serial passage; biological control
Slavicek, James M.; Mercer, Melissa J.; Kelly, Mary Ellen; Hayes-Plazolles, Nancy. 1996. Isolation of a baculovirus variant that exhibits enhanced polyhedra production stability during serial passage in cell culture. Journal of Invertegrate Pathology. 67: 153-160.