Does the cork cambium produce secondary growth?
The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems. It is found in woody and many herbaceous dicots, gymnosperms and some monocots (monocots usually lack secondary growth).
Does secondary growth occur in cork cambium?
The secondary growth of plants increase in stem thickness and it is due to the activity of the lateral meristems, which are absent in herbs or herbaceous plants. There are two types of lateral tissues involved in secondary growth, namely, vascular cambium and cork cambium.
Where does secondary growth occur in?
Secondary growth in shoots (and roots) The process of secondary growth is controlled by the lateral meristems, and is similar in both stems and roots. Lateral meristems include the vascular cambium and, in woody plants, the cork cambium (cambium is another term for meristem).
Where does primary and secondary growth occur?
Primary growth occurs at the apical meristem (a meristem located at the tip of a stem). A meristem is a region of undifferentiated cells from which new cells arise through cellular division. Secondary growth is an increase in thickness or girth of the plant body due to activity of lateral meristems.
What tissue does secondary growth occur?
The tissue responsible for the secondary growth in woody stems is the vascular cambium. Vascular cambium is found in between the xylem and phloem in woody stems, it produces xylem to the inside of the stem and phloem to the outside of the stem.Jan 13, 2022
Does secondary growth only occur in roots?
Secondary growth in shoots (and roots) The process of secondary growth is controlled by the lateral meristems, and is similar in both stems and roots.
How does secondary growth take place in stem?
Secondary growth involves the thickening of the plant axis through the activity of lateral meristems. The end result of secondary growth is increased amounts of vascular tissue. As plants grow larger, more vascular tissue is needed for water conduction and the transport of nutrients.
What process occurs in the cork cambium?
lateral (nonapical) meristem, called the cork cambium, develops in some of the cells of the older phloem and forms cork cells. The cork cells push the old secondary phloem cells toward the outer margins of the stem, where they are crushed, are torn, and eventually slough off.
What happens in the cork cambium?
The vascular cambium and cork cambium are secondary meristems that are formed in stems and roots after the tissues of the primary plant body have differentiated. The vascular cambium is responsible for increasing the diameter of stems and roots and for forming woody tissue. The cork cambium produces some of the bark.
What happens to the cork cambium during secondary growth?
The cork cambium grows both outwards and inwards. The cells that grow outwards become the cork cells and the cells that grow inwards are called secondary cortex.
Does cell division occur in the cork cambium?
The cork cambium forms a major portion of the bark of woody plants. The secondary phloem also is part of the bark, but of course phloem is produced by the vascular cambium. The cork cambium first arises within the cortex as a concentric layer forming a cylinder of dividing cells (Fig. 1.9).