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Cork cambium information


Cork cambium of woody stem (Tilia). It is different from the main vascular cambium, which is the ring between the wood (xylem) on the inside (top) and the red bast (phloem) outside it.

Cork cambium (pl.: cambia or cambiums) is a tissue found in many vascular plants as a part of the epidermis. It is one of the many layers of bark, between the cork and primary phloem. 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). It is one of the plant's meristems – the series of tissues consisting of embryonic disk (incompletely differentiated) cells from which the plant grows. The function of cork cambium is to produce the cork, a tough protective material.[1][2]

Synonyms for cork cambium are bark cambium, pericambium 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 periderm thus consists of three different layers:[1][2]

  • phelloderm – inside of cork cambium; composed of living parenchyma cells
  • phellogen (cork cambium) – meristem that gives rise to periderm
  • phellem (cork) – dead at maturity; air-filled, quite variable between different species, and is also highly dependent on age and growth conditions as can be observed from the different surfaces of bark, which may be smooth, fissured, tesselated, scaly, or flaking off.
  1. ^ a b Junikka, L. (1994) "Macroscopic bark terminology". IAWA Journal 15(1): 3–45
  2. ^ a b Trockenbrodt, M. (1990) "Survey and discussion of the terminology used in bark anatomy". IAWA Bulletin, New Series 11: 141–166

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Cork cambium

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Cork cambium (pl.: cambia or cambiums) is a tissue found in many vascular plants as a part of the epidermis. It is one of the many layers of bark, between...

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Cambium

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area between xylem and phloem. A cambium can also be defined as a cellular plant tissue from which phloem, xylem, or cork grows by division, resulting (in...

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Vascular cambium

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gymnosperm trees, the vascular cambium is the obvious line separating the bark and wood; they also have a cork cambium. For successful grafting, the vascular...

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Meristem

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cambium, and cork cambium, secondary meristems. The cork cambium further differentiates into the phelloderm (to the inside) and the phellem, or cork (to...

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Secondary growth

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result of the activity of the two lateral meristems, the cork cambium and vascular cambium. Arising from lateral meristems, secondary growth increases...

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Vascular tissue

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two meristems associated with vascular tissue: the vascular cambium and the cork cambium. All the vascular tissues within a particular plant together...

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Cork

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Cork and Ross Cork tree (disambiguation) Cork oak, Quercus suber tree, the main source of cork Cork cambium, a tissue found in many vascular plants as...

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Plant stem

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Before the cortex is destroyed, a cork cambium develops there. The cork cambium divides to produce waterproof cork cells externally and sometimes phelloderm...

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Girdling

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circumferential removal or injury of the bark (consisting of cork cambium or "phellogen", phloem, cambium and sometimes also the xylem) of a branch or trunk of...

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Tree

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stem, woody plants also have a cork cambium that develops among the phloem. The cork cambium gives rise to thickened cork cells to protect the surface of...

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Pericycle

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secondary growth, the pericycle contributes to the vascular cambium often diverging into a cork cambium.[citation needed] In angiosperms certain molecules within...

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Euonymus alatus

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in reference to the winged branches. These structures develop from a cork cambium deposited in longitudinal grooves in the twigs' first year, unlike similar...

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non-living woody stem.) Cork is generated by a specialized layer of tissue called cork cambium. Properly done, harvesting cork from a given tree can be...

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Root

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needed] At this point, the cork cambium begins to form the periderm, consisting of protective cork cells. The walls of cork cells contains suberin thickenings...

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Complementary cells

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formed from the cork cambium at the position of the lenticels. It is a group of loosely arranged cells that aid in gaseous exchange through cork. "Definition...

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Stigmaria

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tracheids along the stigmarian rhizomorph axes had lateral vascular and cork cambium as evidenced by its secondary xylem and meristematic tissues. Stigmaria...

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Outline of biology

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taxis seed – cotyledon – meristem – apical meristem – vascular cambiumcork cambium alternation of generations – gametophyte – antheridium – archegonium...

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Platanaceae

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anomocytic Stems with aggregated rays in the xylem, with nodes septilacunar, cork cambium present and superficial, buds covered by single scale Plants monoecious...

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Index of biology articles

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complementary DNA – complement system – condensation reaction – conidium – cork cambium – corpulentapus – corpus luteum cortex – cotransport – cotyledon – covalent...

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Proteaceae

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sclereids frequent; bark with lenticels frequently horizontally enlarged, cork cambium present, usually superficial. Roots lateral and short, often grouped...

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Quercus suber

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cracked cork layers of the gray-brown trunk bark are characteristic of the cork oak. The cambium of the smooth bark of young trees forms a cork layer very...

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Phlobaphene

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phlobaphene type. In bark, phlobaphenes accumulate in the phellem layer of cork cambium, part of the suberin mixture. Many cinchona barks contain a particular...

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Cryptocarya alba

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little undulate. The trunk is straight and hardly twisted; brown-grayish cork cambium, relatively smooth, with few cracks and detachable scales when old. Central...

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Thousand cankers disease

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beginning these cankers develop in phloem and tissues formed by the cork cambium. The affected area is very shallow and never show the "open-faced", perennial...

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Glossary of viticulture terms

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the hard, woody external covering of the grapevine canopy outside the cork cambium. Basal bud The small bud located at the base of a grapevine's cane or...

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Hernandiaceae

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compound, they are palmately compound. The leaves are stipulate. There is a cork cambium present in the bark; in young growth, this is only superficial. The nodes...

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