HISTOLOGICAL STUDY OF THE ROOT AND LEAF OF WITHANIA FRUTESCENS (SOLANACEAE) IN THE REGION OF TLEMCEN (WESTERN ALGERIA)

Histology (from the ancient Greek hystos = tissue and logos = study) is the branch of biology and medicine that studies biological tissue. We used to talk about microscopic anatomies. It aims to explore the structure of living organisms, the constitutive and functional relationships between their functional elements, as well as tissue renewal. The methodology of plant histology is not fundamentally different from that of animal histology. The basic technique generally involves fixing the samples followed by hardening or inclusion in paraffin or plastics, sections by microtomy and then either topographic staining when looking for an overview, or specific when looking for an overview, or specific when wants to electively characterize certain structures. In this summary, we will present a study of the internal structure of the stem and leaf of Withania frutescens (Solanaceae) at the microscopic scale. The histological study carried out at the root and leaf level of Withania frutescens (Solanaceae) allows us to analyze the different structures well and with precision and to draw the general characteristics concerning the arrangement of tissues in plant organs.