Anatomical Adaptations

Anatomical Adaptations:

A. The root hairs and root caps are well build up in Opuntia.

B. Roots might become fleshy to preserve water as in Asparagus.

C. In succulent xerophytes, stems hold a water storage area (i.e., thin walled parenchyma cells)

D. Stems of non-succulent xerophytes exhibit a very thick cuticle well developed epidermis with thickened cell wall, numerous layered and sclerenchymatous hypodermis, example: Casuarina.

E. The stems contain sunken stomata and well build up mechanical and vascular tissues.

F. Leaves exhibit well developed cuticle, multilayered epidermis in Nerium, succulent leaves in Aloe, sclerenchymatous and numerous layered hypodermis in Pinus, and bulliform cells in Sugarcane.

686_nerium leaf.jpg

Figure: T.S of Nerium leaf

G. Mesophyll is well distinguished and vascular and mechanical tissues are well build up.


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