Cork Cambium
The outer cortical and epidermal layers break down and need to be replaced in order to produce new protective cell layers while the stem continues to girthen as a result of the activity of the vascular cambium. As a result, cork cambium or phellogen, another meristematic tissue, eventually forms, mainly in the cortical area. There are a few levels of phellogen. It is constructed of compact, almost rectangular compartments with thin walls. Cells are severed on both sides by phellogen. Differentiating into cork or phellem are the outer cells. The inner cells develop into a secondary cortex or phelloderm, whereas water cannot penetrate the cork because of suberin deposition in the cell wall. Secondary cortical cells are parenchymatous. The periderm is the aggregate name for phellogen, phellem, and phelloderm.
Pressure accumulates on the remaining peripheral layers as a result of the cork cambium’s activity. These layers eventually phellogen, perish, and peel off. All tissues outside of the circulatory system are referred to as “bark” in a non-technical sense. Cork cambium, which comprises secondary phloem. Periderm and secondary phloem are two of the tissue types that are referred to as bark.
Cork Cambium
The study of an organism’s internal structure is called anatomy. Histology, or the study of tissue organization and structure, is a component of plant anatomy research. Anatomy reveals the structural adaptation to various settings and reveals the structural differences of various groups of plants.
Tissue is a collection of cells with shared ancestry and typically performing a similar function.
- Meristematic tissue is a straightforward tissue made up of clusters of comparable, immature cells that have the ability to divide and create new cells. Apical meristems are those that grow at the tips of roots and shoots.
In particular, intercalary meristems are found between mature tissues in grasses. Both apical and intercalary meristems are primary meristems because they emerge early in a plant’s life and aid in the formation of the main plant body.
The term “lateral meristem” refers to the meristem that grows on the sides of plants and contributes to the growth of their girth. In the primary lateral meristem, there is intrafascicular cambium. Cork and vascular cambium are secondary meristems. - Permanent tissue refers to cells that have lost the capacity to proliferate and have physically and functionally specialized. Simple permanent tissues are those with cells that are all similar in structure and function, whereas complicated tissues are those with a variety of cell types.
Simple permanent living tissue known as parenchyma is composed of isodiametric cells with thin walls. A substantial central vacuole and nuclei-containing cytoplasm are enclosed within each cell. They can be discovered in the softer, non-woody parts of the stem, root, leaves, fruits, and flowers. They serve as food storage and give plants softer portions turgidity.
Cells in the collenchyma have significantly thicker corners as a result of cellulose, hemicellulose, and pectin. Chlorophyll is frequently oval, spherical, or polygonal in shape. They give the plants’ developing portions, such as young stems, mechanical support.