Nutation (botany)
As nutation or nutating motion is referred to in the Botany autonomous, mostly circular motion (circumnutation) of seedlings , wind plants or vines that are not controlled by environmental factors, but endogenous. The nutation movement occurs as the various sides of the organ grow at different rates.
The term nutation was used as early as 1758 by Duhamel du Monceau for the phototropism of the sunflower . The expression was precisely defined in 1840 by Wilhelm Pfeffer .
swell
Individual evidence
- ↑ Schütt et al .: Lexicon of tree and shrub species. 2002, p. 316.
- ↑ a b Wagenitz: Dictionary of Botany. 2008, p. 166.
literature
- Schütt, Schuck, Stimm: Lexicon of tree and shrub species . Nikol, Hamburg 2002, ISBN 3-933203-53-8 , pp. 244 .
- Gerhard Wagenitz : Dictionary of botany. Morphology, anatomy, taxonomy, evolution. 2nd, expanded edition. Nikol, Hamburg 2008, ISBN 978-3-937872-94-0 , p. 166.