Textile plants are quite diverse.Interestingly, the morphological features of each of these structures are directly dependent on the executable it functions.Decided to allocate some of their types:
- education;
- coating;
- mechanical;
- conductive;
- basic.
Each structure has certain characteristics, which are discussed below.
Educational plant tissue
Educational tissue are called meristems.This structure consists of small, polyhedral cells with thin walls.They are locked tightly together.Under the microscope you can see that they have a large nucleus and many small vacuoles.A special feature of this fabric is the ability of its cells to divide continuously.This is what ensures a constant growth of the plant.Accepted provide the following types:
- Primary meristem - the adult plant this fabric is stored in the tips of shoots and root tips.It is because it is the primary plant growth in length.
- Secondary meristem - cambium presented and fellogenom.These fabrics provide secondary growth of the stem and root diameter.By location isolated apical, lateral and intercalary meristem secondary.
Coating plant tissue
covering tissue is placed on the body surface of the plant.Its main function - is the protection.These structures are responsible for plant resistance to mechanical stress, protect against sudden temperature fluctuations and excessive evaporation of moisture, protect against penetration of pathogenic microorganisms.The cover elements can be divided into three main groups:
- epidermis (skin) - is the primary tissue that consists of small, transparent and tightly closed interconnected cells.Typically, this type of fabric covers the surface of the leaves and shoots of young.The epidermal layer of leaves includes stomata - education, who are responsible for the processes of gas exchange and transpiration.
- periderm - secondary coating fabric, which is placed on the surface of the stem and root.It comprising feloggena and cork.Cork is a dead layer of cells, the walls of which are impregnated with a waterproof substance suberin.
- Cork - tissue, which is characteristic of trees and some bushes.This layer of covering tissue is the external part of the stopper.
conductive fabric plant
The primary function of this group tissue - the transport of water and minerals to the body of the plant.To distinguish the following types of conductive elements:
- Xylem - moves the water with dissolved minerals from the root system in the ground part of the plant.It consists of special vessels, the trachea and the so-called tracheids.
- Phloem - fabric that ensures the downward current.Through sieve tubes all organic nutrients are synthesized leaves spread to other organs of the plant, including the root system.
main plant tissues: parenchyma
This fabric is composed of small living cells with thin walls.That it is the basis of all the organs.It includes:
- The assimilation tissue - their cells contain many chloroplasts and are responsible for photosynthesis and the formation of organic matter.Most of these tissues contained in the leaves.
- storage tissues - cells are deposited nutrients.This tissue is concentrated in the fruits, roots and seeds.
- Aquifers tissue - used for accumulation and preservation of water.These fabrics are characteristic for plants living in hot and dry climates, such as cacti.
- pneumatic tissue - such fabrics have huge intercellular cavities that are filled with air.Aerenchyma characteristic of marsh and aquatic plants.
Mechanical plant tissue
responsible for creating a durable frame.They maintain the shape of the plant, making it more resistant to mechanical influence.It consists of such tissue cells with thick shells.The most highly developed mechanical tissue in the stem of the plant.
