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  • Title: The pathway of infection of Autographa californica nuclear polyhedrosis virus in an insect host.
    Author: Keddie BA, Aponte GW, Volkman LE.
    Journal: Science; 1989 Mar 31; 243(4899):1728-30. PubMed ID: 2648574.
    Abstract:
    An immunohistochemical study was conducted to detect the temporal infection sequence of Autographa californica M nuclear polyhedrosis virus in Trichoplusia ni larvae. Staining patterns indicated that the initial infection occurred in the midgut, simultaneously in columnar epithelial and regenerative cells, but that subsequently this tissue recovered. A major envelope glycoprotein stained in a polar fashion when it was expressed in columnar epithelial cells, but not when expressed in other cells types. Systemic infection was mediated by free virus for some tissues whereas infected hemocytes appeared to spread virus to other tissues by an unknown mechanism. A cell to cell spread within several tissues was detected. These results have important implications for baculoviruses engineered for improving their pesticide potential.
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