Paradoxerweise ist dieser Ausdruck in der Zoologie weniger geläufig, obwohl es gerade in der tierischen Keimesentwicklung ( im Gegensatz zur pflanzlichen ) echte Verlagerungen von Zellen ( ohne nennenswerte Volumenänderungen ) gibt.
Man denke dabei nur an die Bildung der Gastrula ( Gastrulation ) oder die Abschnürung des Neuralrohrs ( Neurulation ).
Wie eingangs dargelegt, wird zwischen Tropismen und Nastien unterschieden.
www.biologie.uni-hamburg.deParadoxically is this term rather unusual in zoology, although it is especially in animal germination ( in contrast to that of plants ) that cells do really change places ( without remarkable changes of volume ).
Just think of gastrulation or the cutting off of the neural tube.
As has been said at the beginning is it distinguished between tactic and nastic movements.
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