1. Cortical Aerenchyma may be formed by a specific process of separation and differential expansion of mature cells (schizogenous Aerenchyma

2. Presently, the mechanisms of schizogenous and secondary Aerenchyma formation are less well understood than the mechanisms of lysigenous Aerenchyma formation.

3. Roots growing in continuously wet environments possess constitutive aerenchyma whereas roots of periodically flooded plants are able to respond by forming lysigenous or schizogenous aerenchyma.

4. Trees growing in wetlands develop adventitious roots from the trunk during the rainy season and adapt to the flooded environment by forming primary (schizogenous or lysigenous) and secondary Aerenchyma in the roots