The release of viral genome RNA from virions of the cytoplasmic-polyhedrosis virus of Malacosoma disstria by acetone treatment

1971 ◽  
Vol 17 (3) ◽  
pp. 433-439
Author(s):  
Y. Hayashi ◽  
J.C. Cunningham
Keyword(s):  
Viral Genome ◽  
Malacosoma Disstria ◽  
Cytoplasmic Polyhedrosis Virus ◽  
Acetone Treatment ◽  
Polyhedrosis Virus

INFECTION AND MORTALITY OF SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA, AND FOREST TENT CATERPILLAR, MALACOSOMA DISSTRIA, CAUSED BY NUCLEAR AND CYTOPLASMIC POLYHEDROSIS VIRUSES

1969 ◽  
Vol 101 (12) ◽  
pp. 1269-1285 ◽  
Author(s):  
F. T. Bird
Keyword(s):  
Larval Development ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Malacosoma Disstria ◽  
Forest Tent Caterpillar ◽  
Cytoplasmic Polyhedrosis Virus ◽  
Polyhedrosis Virus ◽  
Nuclear Polyhedrosis ◽  
Tent Caterpillar

AbstractCytoplasmic polyhedrosis viruses are, in general, more infectious to spruce budworm, Choristoneura fumiferana (Clemens), and forest tent caterpillar, Malacosoma disstria (Hübner), than the nuclear polyhedrosis viruses which affect these insects. The cytoplasmic polyhedrosis viruses interfere with and retard development of the nuclear polyhedrosis viruses.Larvae of both insects, as they grow older, develop resistance to both viruses. Resistance develops more rapidly and to a greater degree against the nuclear polyhedrosis than against the cytoplasmic polyhedrosis viruses.The nuclear polyhedrosis viruses are more lethal than the cytoplasmic polyhedrosis viruses, and all larvae infected with the nuclear polyhedrosis viruses die except those infected so late in larval development that they are able to pupate. Most young larvae infected with the cytoplasmic polyhedrosis virus die or are seriously affected, but infection has progressively less effect as the larvae mature.

Cytoplasmic polyhedrosis virus (CPV) of Malacosoma disstria: RNA polymerase activity in purified free viroin

1972 ◽  
Vol 18 (2) ◽  
pp. 207-210 ◽  
Author(s):  
T. P. Donaghue ◽  
Y. Hayashi
Keyword(s):  
Rna Polymerase ◽  
Polymerase Activity ◽  
Malacosoma Disstria ◽  
Free Form ◽  
Cytoplasmic Polyhedrosis Virus ◽  
Alkaline Digestion ◽  
Rna Polymerase Activity ◽  
Polyhedrosis Virus

RNA polymerase activity is confirmed in virions of cytoplasmic polyhedrosis virus (CPV) of M. disstria obtained by the alkaline digestion of polyhedra as well as in virions isolated in a free form from the insect tissue.

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