title: Photon emission during cleavage of frog eggs.
abstract: Emission of light was detected from the surface of embryos of the frog, Rana japonica, during early cleavage by a photon counting and an "analog separation (integrated photons) method". The light-emission from an egg was more than 5.6 x 10(-19) W at the beginning of the first cleavage.
authors.affiliation: Deparment of Physiology, School of Medicine, Kitasato University, Kanagawa, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Oonuki
authors.forename: M
authors.initials: M
authors.lastname: Ryuzaki
mesh_terms: D000818:Animals; D002455:Cell Division; D004625:Embryo, Nonmammalian / Q000502:physiology; D005260:Female; D005306:Fertilization; D008027:Light; D008297:Male; D009865:Oocytes / Q000502:physiology*; D011827:Radiation; D011898:Ranidae