chemotropism
/ˌkimoʊˈtroʊpɪzəm/
noun
- The growth or movement of an organism, especially a plant, in response to a chemical substance.
- Scientists studied chemotropism in fungi to understand how they find food sources.
- Chemotropism helps pollen tubes grow toward the ovule during plant reproduction.
- The roots of the plant showed chemotropism by growing toward the fertilizer in the soil.