Aerenchyma 

a type of plant tissue characterized by large air-filled spaces. It is primarily found in aquatic plants and plants growing in waterlogged conditions. The primary function of aerenchyma is to facilitate the exchange of gases, such as oxygen and carbon dioxide, between the plant's aerial parts and its submerged or waterlogged roots. This adaptation is crucial for the survival of plants in anaerobic (low oxygen) environments, as it allows the roots to receive sufficient oxygen for respiration. Aerenchyma can form through the enlargement of existing intercellular spaces or through the breakdown of cells (lysigeny) to create air spaces.

Person 1: "Why can some plants survive in waterlogged soils?"
Person 2: "They develop aerenchyma, which helps transport oxygen to their roots."

Aerenchyma by scugtunker May 29, 2024