You searched for: “aerotropism
aerotropism (s) (noun), aerotropisms (pl)
1. Movement of an organism toward (positive aerotropism) or away from (negative aerotropism) a supply of air.
2. The growth or movement of an organism toward an air supply; such as, an air bubble in a bacterial culture chamber.
3. The reaction to gases, generally to oxygen, particularly the growth curvature of roots or other parts of plants to changes in oxygen tension.
4. An orientation response to a gaseous stimulus.