lenticel
/ˈlɛntɪsɛl
/noun Botany
One of many raised pores in the stem of a woody plant that allows gas exchange between the atmosphere and the internal tissues.Both root system and trunk have lenticels (gas exchange pores) and aerenchyma (interconnected air-filled spaces), the former features comprising up to 51% of the volume of some mangrove roots....
- This tissue probably aided photosynthetic gas exchange much like the lenticels of modern trees.
- Finally, long-term morphological changes are induced, such as the formation of lenticels and aerenchyma to improve the oxygen permeability of the tissue.
Origin
Mid 19th century: from modern Latin lenticella, diminutive of Latin lens, lent- 'lentil'.