Read this essay to learn about the arrangements of primary tissues in the roots of plants. 1. Epiblema: The dermal tissue system is called epiblema or rhizodermis as it differs from that of the shoot in origin, structure and function. The cells of this layer are elongated, thin-walled with a thin cuticle on the outer cell wall and devoid of [...]
Read this essay to learn about the meaning and significance of root-stem transition. Essay # 1. Meaning of Root-Stem Transition: The change in orientation of vascular tissues from exarch radial type in root to endarch and conjoint collateral type in stem is designated as root-stem transition. The continuity between the vascular strands of roots and stems is maintained but the [...]
Read this essay to learn about:- 1. Meaning of Shoot Apex 2. Angiosperm Shoot Apex 3. Gymnosperm Shoot Apex 4. Shoot Apex of Pteridophytes. Essay # 1. Meaning of Shoot Apex: The shoot apex proper is considered as the region of initiation of the primary organisation of the shoot in which the processes of unlimited growth take place. This region [...]