ISSN:
1420-9071
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary Various animal tissues were tested for their capabilities as inductors in implantation experiments. After being fixed in alcohol for a short time (few hours), parotis, kidney, and thymus of the guinea pig, as well as the kidney of the white mouse (Series I), proved to be specifically deuterencephalic-spinocaudally acting inductors, whereas the liver and heart of the guinea pig, and the liver of mouse and Triturus (Series II), showed themselves as specifically archencephalic-deuterencephalic inductors. If the affection by alcohol is prolonged (up to 4 weeks), the deuterencephalic-spinocaudal effect is gradually lost in series I, while new archencephalic structures come into existence. The tissues of series II, however, retain their archencephalic-deuterencephalic effect. The action of the tissues tested, except that of the heart muscle, changes in the same way when the animals are subjected to a starvation diet for several weeks. The archencephalic rate of induction increases while the spinocaudal rate decreases in proportion. In all the tissues tested, the capacity of archencephalic induction can be increased by treatment with ribonuclease.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02178336
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