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Diatropism |
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diatropism [dī′a·trə‚piz·əm]
(botany) Growth orientation of certain plant organs that is transverse to the line of action of a stimulus. Diatropism movements of plant organs during which they occupy a position perpendicular to the direction of the external forces acting on them. Diatropism is primarily typical of lateral plant organs with a dorsi-ventral structure, particularly of leaves that occupy a position on the main stem that is mostly perpendicular to the force of gravity operating on them or to the direction of light falling on them. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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