The following points highlight the two main exercises to study shoot apex and root apex. Exercise 1: To study L.S. shoot tip for studying cytohistological zonation and origin of leaf primordia. Shoot Apex: 1. Shoot apex is somewhat convex or slightly elongated with abroad base (Figs. 151-153). 2. It can be distinguished into four distinct regions, i.e., tunica, corpus, flank [...]
Let us learn about the Stem of Pinus. After reading this article you will learn about: 1. Anatomy of Young Stem of Pinus 2. Secondary Growth in Thickness of Stem of Pinus. Anatomy of Young Stem of Pinus: It resembles the anatomy of dicotyledonous stem in many respects. The general arrangement of the various tissues from the circumference to the [...]
Let us learn about Dicotyledonous Stems. After reading this article you will learn about: 1. Regions in Dicotyledonous Stems 2. Variations in Dicotyledonous Stem Structure 3. Types. Regions in Dicotyledonous Stems: Epidermis: The epidermis consists of a single layer of cells and is the outermost layer of the stem. It contains stomata and produces various types of trichomes. The outer [...]