title: Silkworm salivary glands are not susceptible to Bombyx mori nuclear polyhedrosis virus.
abstract: A nuclear polyhedrosis virus isolated from infected Bombyx mori, BmNPV, was used to inoculate silkworms to determine salivary gland cell susceptibility. The salivary gland was removed from infected silkworms at different times post-inoculation and examined by light microscopy. The salivary gland cells did not exhibit any signs of BmNPV infection; however, fat body and tracheal cells, used as positive controls, showed characteristic cytopathological changes caused by BmNPV infection, which confirmed inoculum viability. The morphological distribution of tracheal branches and the basal lamina, which serves as a barrier to viral penetration, are apparently involved in this resistance to infection.
authors.affiliation: Laboratório de Organização Funcional do Núcleo, Departamento de Biologia Celular e Genética, Universidade Estadual de Maringá, Maringá, PR, Brasil.
authors.forename: L A
authors.initials: LA
authors.lastname: Dourado
authors.forename: L F C
authors.initials: LF
authors.lastname: Ribeiro
authors.forename: R M C
authors.initials: RM
authors.lastname: Brancalhão
authors.forename: J
authors.initials: J
authors.lastname: Tavares
authors.forename: A R
authors.initials: AR
authors.lastname: Borges
authors.forename: M A
authors.initials: MA
authors.lastname: Fernandez
mesh_terms: D000818:Animals; D012831:Bombyx / Q000821:virology*; D005216:Fat Body / Q000821:virology; D017924:Nucleopolyhedroviruses / Q000502:physiology*; D012469:Salivary Glands / Q000821:virology*