Growth of cell wall involves the growth in surface area as well as growth in thickness. Normally, the entire cell wall grows. Localized growth occurs in fibres, root hairs, tracheids and pollen tubes. A new primary wall grows in surface area. The wall expands due to the turgor pressure exerted on the walls by the protoplast. Turgor pressure is developed [...]
In this article we will discuss about the Quiescent Centre (QC) found in root-promeristem of higher plants. It is observed that in the root-promeristem of higher plants the initials divide much less frequently than other cells. This part of root-promeristem, which contains the initials of epidermis, cortex and stele and divides less frequently, is referred to as quiescent centre (QC). [...]
In this article we will discuss about the structure of epidermis in plants. This will also help you to draw the structure and diagram of epidermis in plants. The outermost layer or layers of cell covering all plant organs are the epidermis. It is in direct contact with the environment and so it modifies itself to cope up with the [...]