title: [The situs viscerum of triturus alpestris after UV-irradiation in pregastrula stages].
abstract: Uncleaved eggs, eggs with 4, 32-64 blastomeres and blastulae were irradiated with different doses of UV-mixed light, only onesided-equatorial, -animal or -vegetativ. In no case did the UV-irradiation effect a statistically significant increase of whole or partial visceral inversions. These happened only after irradiation of young gastrulae, especially when the vegetative germ part with the blastopore was exposed.
authors.affiliation: Abt. für Entwicklungsphysiologie, Heiligenberg-Institut, Heiligenberg (Bodensee).|Anatomisches Institut der Universität, 355 Marburg a. d. Lahn, Lehrstuhl 1.
authors.forename: Arne V
authors.initials: AV
authors.lastname: Kraft