Search results
Results from the WOW.Com Content Network
The epidermis of most leaves shows dorsoventral anatomy: the upper (adaxial) and lower (abaxial) surfaces have somewhat different construction and may serve different functions. Woody stems and some other stem structures such as potato tubers produce a secondary covering called the periderm that replaces the epidermis as the protective covering.
Synonyms for cork cambium are bark cambium, peri-cambium and phellogen. Phellogen is defined as the meristematic cell layer responsible for the development of the periderm. Cells that grow inwards from there are termed phelloderm, and cells that develop outwards are termed phellem or cork (note similarity with vascular cambium).
The skin on the potato tuber (which is an underground stem) constitutes the cork of the periderm. [30] [31] In woody plants, the epidermis of newly grown stems is replaced by the periderm later in the year. As the stems grow a layer of cells form under the epidermis, called the cork cambium, these cells produce cork cells that turn into cork.
Prickle – an extension of the cortex and epidermis that ends with a sharp point. Prostrate – growing flat on the soil surface. Rhizome – a horizontally orientated, prostrate stem with reduced scale-like leaves, normally growing under ground but also on the soil surface. Also produced by some species that grow in trees or water.
Ep = epidermis; C = cortex; BF = bast fibres; P = phloem; X = xylem; Pi = pith Women in southern Norway weaving with linden bast fibres Ndimbu mask from Tanganyika, made with wood, hair and bast Bast fibre (also called phloem fibre or skin fibre ) is plant fibre collected from the phloem (the "inner bark", sometimes called "skin") or bast ...
Epidermis is the outermost layer of the skin of a human or other vertebrate animal. Epidermis may also refer to: Epidermis (botany), the outermost cell layer of plants; Epidermis (zoology), the sheet of cells that covers the body of all animals more complex than sponges
The epidermis is the outermost of the three layers that comprise the skin, the inner layers being the dermis and hypodermis. [1] The epidermis layer provides a barrier to infection from environmental pathogens [ 2 ] and regulates the amount of water released from the body into the atmosphere through transepidermal water loss .
Cork cambium viewed under a microscope. A cambium (pl.: cambiums or cambia), in plants, is a tissue layer that provides partially undifferentiated cells for plant growth. It is found in the area between xylem and phloem.