The following points highlight the three main types of vegetative shoot apex found in plants. The types are: 1. Monoplex Apex 2. Simplex Apex 3. Duplex Apex. Type # 1. Monoplex Apex: Ex. cryptogamic vascular plants. Continuing meristematic residue occurs in the superficial layer only. It may consist of more than one cell provided a common wall is present between [...]
The following points highlight the top three theories of shoot apical meristem. The theories are: 1. Apical Cell Theory 2. Histogen Theory 3. Tunica-Corpus Theory. 1. Apical Cell Theory: Nageli in 1944 advocated this theory. According to this theory the apical meristem consists of a single apical cell (also called apical initial) and this cell is interpreted as the 'structural [...]
In this article we will discuss about the shoot apex found in the leaf of a plant. The terminal portion of shoot that occurs just above the youngest leaf primordium is designated as shoot apex. The shoot apex is the region of the primary organization of shoots and exhibits indeterminate or unlimited growth. It continuously produces leaf primordia at definite [...]