Show pageOld revisionsBacklinksBack to top You've loaded an old revision of the document! If you save it, you will create a new version with this data. Media Files===Plant hormones=== There are five general classes of hormones: auxins, cytokinins, gibberellins, ethylene, and abscisic acid. for more details see [[plant biology]] ===Phototropism=== * movement in response to light. * shoots grow toward light and are positively phototropic; roots grow away from light and are negatively phototropic. * IAA increase in shaded side -> plant curve toward light * wavelengths less than 500μm—is most effective in producing a growth response. ===Gravitropism=== * response to gravity ===Thigmotropism=== * reaction to a solid object * eg. tendrils of climbing plants wrapping around a support * IAA (lengthening) and ethylene (contracting) are probably involved Please fill all the letters into the box to prove you're human. Please keep this field empty: SavePreviewCancel Edit summary Note: By editing this page you agree to license your content under the following license: CC Attribution-Share Alike 4.0 International plant_movement.1211896723.txt.gz Last modified: 2008-05-27 13:58by nik