Angiosperm Leaf: Adaxial Epidermis and Cuticle in Nerium
cross section: Nerium leaf
common name: Oleander
magnification: 400x
Berkshire Community College Bioscience Image Library
Both the adaxial and abaxial epidermis in Nerium are multiseriate, being composed of up to three layers of compactly arranged cells with heavily cutinized outer walls.
A heavy waxy cuticle is especially well developed on the light exposed adaxial surface. Stomata are limited to the abaxial surface where they are sunken within deep, trichome lined pits that serve to reduce transpirational water loss.
Three or more layers of tightly packed photosynthetic palisade mesophyll can be seen just beneath adaxial epidermis. In some specimens a single layer of shorter palisade mesophyll cells may be present towards the abaxial surface. The center of the leaf is occupied by a spongy mesophyll with abundant intracellular spaces and occasional calcium oxalate crystals.
Technical Questions:bioimagesoer@gmail.com
Angiosperm Leaf: Adaxial Epidermis and Cuticle in Nerium
cross section: Nerium leaf
common name: Oleander
magnification: 400x
Berkshire Community College Bioscience Image Library
Both the adaxial and abaxial epidermis in Nerium are multiseriate, being composed of up to three layers of compactly arranged cells with heavily cutinized outer walls.
A heavy waxy cuticle is especially well developed on the light exposed adaxial surface. Stomata are limited to the abaxial surface where they are sunken within deep, trichome lined pits that serve to reduce transpirational water loss.
Three or more layers of tightly packed photosynthetic palisade mesophyll can be seen just beneath adaxial epidermis. In some specimens a single layer of shorter palisade mesophyll cells may be present towards the abaxial surface. The center of the leaf is occupied by a spongy mesophyll with abundant intracellular spaces and occasional calcium oxalate crystals.
Technical Questions:bioimagesoer@gmail.com