title: Targeted heavy-ion microbeam irradiation of the embryo but not yolk in the diapause-terminated egg of the silkworm, bombyx mori, induces the somatic mutation.
abstract: Using heavy-ion microbeam, we report target irradiation of selected compartments within the diapause-terminated egg and its mutational consequences in the silkworm, Bombyx mori. On one hand, carbon-ion exposure of embryo to 0.5-6 Gy increased the somatic mutation frequency, suggesting targeted radiation effects. On the other, such increases were not observed when yolk was targeted, suggesting a lack of nontargeted bystander effect.
authors: Department of Applied Biology, Faculty of Textile Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, Japan.
authors: Toshiharu
authors: T
authors: Furusawa
authors: Kana
authors: K
authors: Fukamoto
authors: Tetsuya
authors: T
authors: Sakashita
authors: Eiko
authors: E
authors: Suzuki
authors: Takehiko
authors: T
authors: Kakizaki
authors: Nobuyuki
authors: N
authors: Hamada
authors: Tomoo
authors: T
authors: Funayama
authors: Hiromi
authors: H
authors: Suzuki
authors: Noriaki
authors: N
authors: Ishioka
authors: Seiichi
authors: S
authors: Wada
authors: Yasuhiko
authors: Y
authors: Kobayashi
authors: Shunji
authors: S
authors: Nagaoka
mesh_terms: D000818:Animals; D012831:Bombyx / Q000196:embryology* / Q000528:radiation effects*; D004307:Dose-Response Relationship, Radiation; D004625:Embryo, Nonmammalian / Q000502:physiology* / Q000528:radiation effects*; D020450:Heavy Ions; D009154:Mutation / Q000528:radiation effects*; D010063:Ovum / Q000502:physiology* / Q000528:radiation effects*; D011829:Radiation Dosage