Ancestral plants had a uniform, isodiametric Chlorenchyma with small air spaces. Aerenchyma Link Aerenchyma Link Storage Parenchyma is also important. The latter deter herbivory. Waste products may also be confined in Parenchyma Cells. This is one of the most important vegetative adaptations of land plants.
Endodermal cells can lead to solute exclusion OR concentration .
Transpiration provides the tension to finish this process. The Cork Cambium originates in Parenchyma cells. Interfascicular Parenchyma cells are recruited into the Vascular Cambium. Sclerenchyma provides support for aerial organs. Its thick walls are highly organized and impregnated with Lignin which makes them very strong and waterproof.