On a Cytoplasmic Polyhedrosis of the Smaller Tea Tortrix, <i>Adoxophyes fasciata</i> WALSINGHAM

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  • チャノコカクモンハマキの細胞質多角体病について
  • チャノコカクモンハマキ ノ サイボウシツ タカクタイビョウ ニ ツイテ

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In the present paper, symptomatology and histopathology of a newly discovered cytoplasmic polyhedrosis of the smaller tea tortrix, Adoxophyes fasciata, were described. The diseased larva lost its appetite, which resulted in a marked reduction in the body size. The larva became sluggish and its color became whitish, especially in the ventral region of the abdomen.<br>Upon opening the larva, the midgut was characteristically white. Electron micrographs demonstrated that icosahedral virus particles about 55-60nm in diameter developed and occluded onto polyhedra in the virogenic stroma formed in the cytoplasm of midgut cells.<br>The polyhedra were generally icosahedral and had a size of about 1.2μ in diameter, but occasionally cuboidal polyhedra were found. The virogenic stroma contained complete virions, polyhedra, dense granules as core material, fibrillar material, most likely protein, and crystallogenic matrix which surrounded the developing polyhedra, but no cellular components.

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