In this article we will discuss about:- 1. Origin and Development of Vessel 2. Phylogeny of Vessel. Origin and Development of Vessel: Trachea (or vessel) originates from meristematic cells (Fig. 10.4) that are grouped together in a longitudinal file. The meristematic cells are known as xylem mother cell that develops from procambial cells in the primary xylem. In secondary xylem [...]
In this article we will discuss about the definition and components of phloem tissue in plants. Definition of Phloem: Phloem is a complex tissue or heterogeneous vascular tissue that stores and conducts principally the products of photosynthesis in vascular plants and sometimes adds mechanical strength. Phloem in association with xylem constitutes the vascular bundle and forms the conducting tissue system [...]
In this article we will discuss about the definition and cell types of xylem tissue in plants. Definition of Xylem: Xylem can be defined as a complex tissue that is composed of four basic types of cell (tracheids, trachea, and xylem fibre and xylem parenchyma), remains in close association with phloem and has specialized functions like conduction of water and [...]