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J Invertebr Pathol ; 172: 107350, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32194029

RESUMO

Nosema bombycis, the first identified microsporidium, causes heavy losses to the sericulture industry in China. During infection, microsporidia discharge a long and hollow polar tube, which delivers the sporoplasm into host cells. Polar tube protein 1 was the major component on the polar tube. Previously, we expressed the polar tube protein 1 from Nosema bombycis (NbPTP1) intercellularly in Drosophila S2 cells. Here, the microsporidian protein was expressed in Lepidopteran Sf9 cells. During heterologous expression, NbPTP1 protein was secreted and glycosylated. Microsporidian proliferation decreased in NbPTP1-expressing Sf9 cells. This confirms that NbPTP1 protein can interact with the host cell membrane receptor protein to facilitate microsporidian invasion.


Assuntos
Proteínas Fúngicas/genética , Nosema/fisiologia , Spodoptera/microbiologia , Animais , Proteínas Fúngicas/metabolismo , Nosema/genética , Células Sf9/microbiologia
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