In this article we will discuss about the construction and distribution of mechanical cells in plants. The principle regarding the construction of mechanical tissue is to obtain maximum mechanical rigidity and elasticity with minimum expenditure of materials. This principle is observed in roots, stems, fruit stalks, branches etc., but the arrangement of mechanical cells varies greatly in them. The organs [...]
In this article we will discuss about the process of abscission in plants, explained with the help of suitable diagrams. Abscission is a process that initiates the removal of a part of plant following the formation of a protective layer or scar tissue that prevents the entry of pathogen and protects the inner tissues from desiccation. Plants are shedding organisms. [...]
The following points highlight the five major reasons of anomalous secondary growth in plants. The reasons are: 1. The Activity of Normal Cambium is Abnormal 2. Abnormally Situated Cambium Forms Normal Secondary Vascular Tissues 3. Formation of Secondary Tissues by Accessory Cambium 4. Formation of Interxylary Phloem 5. Formation of Intra-Xylary Phloem. Reason # 1. The Activity of Normal Cambium [...]