Baculovirus proteins and viral pesticides containing same
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United States of America Patent
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Nov 27, 1990
Issued Date -
N/A
app pub date -
Oct 25, 1989
filing date -
Apr 6, 1988
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Abstract
Nuclear polyhedrosis viruses, for example, Autographa californica nuclear polyhedrosis virus (AcMNPV), useful in the control of lepidopterous larvae such as the larvae of the cabbage looper Trichoplusia ni, have been found to have enhanced infectivity when mixed with certain proteins obtained from the granulin fraction of Trichoplusia ni granulosis virus (TnGV) or Heliothis armigera granulosis virus (HaGV), and from the polyhedrin fraction of AcMNPV viruses. The proteins from the TnGV granulin fraction have molecular weights of about 101 and about 104 kd. The enhanced infectivity is correlated to biochemical and structural changes in the T.ni peritrophic membrane.
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