Abstract
Autographa californica nuclearpoly hedrosis virus (AcMNPV) is one of the most important baculoviridae. However, the application of AcMNPV as a biocontrol agent has been limited. Previously, we engineered Buthus martensii Karsch insect toxin (BmK IT) gene into the genome of AcMNPV. The bioassay data indicated that the recombinant baculovirus AcMNPV-BmK IT significantly enhanced the anti-insect efficacy of the virus. The actin cytoskeleton is the major component beneath the surface of eukaryotic cells. In this report, the effects of AcMNPV-BmK IT on the formation of early cables of actin and nuclear filamentous-actin (F-actin) were studied. The results indicated that these baculovirus induced rearrangement of the actin cytoskeleton of host cells during infection and actin might participate in the transportation of baculovirus from cytoplasm to the nuclei. AcMNPV-BmK IT delayed the formation of early cables of actin and nuclear F-actin and accelerated the clearance of actin in the nuclei.
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