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.