chemotropisms
/ˌkimoʊˈtroʊpɪzəmz/
noun
- Plural of chemotropism; the growth or movement of a plant or organism toward or away from a chemical substance.
- Chemotropisms guide pollen tubes toward ovules during fertilization.
- Fungi show chemotropisms when their hyphae grow toward food sources.
- Plant roots exhibit chemotropisms by growing toward nutrients in the soil.