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Encyclopedia > Cork cambium

Cork cambium is a tissue found in many vascular plants as part of the periderm. 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, which usually lack secondary growth. Biological tissue is a collection of interconnected cells that perform a similar function within an organism. ... It has been suggested that this article or section be merged into Bark. ... Orders see text Dicotyledons or dicots are flowering plants whose seed contains two embryonic leaves or cotyledons. ... Divisions Pinophyta (or Coniferophyta) - Conifers Ginkgophyta - Ginkgo Cycadophyta - Cycads Gnetophyta - Gnetum, Ephedra, Welwitschia The gymnosperms (Gymnospermae) are a group of spermatophyte seed-bearing plants with ovules on the edge or blade of an open sporophyll, the sporophylls usually arranged in cone-like structures. ... Orders Base Monocots: Acorus Alismatales Asparagales Dioscoreales Liliales Pandanales Family Petrosaviaceae Commelinids: Arecales Commelinales Poales Zingiberales Family Dasypogonaceae Monocotyledons or monocots are a group of flowering plants usually ranked as a class and once called the Monocotyledoneae. ...


Cork cambium is one of the plant's meristems - the series of tissues consisting of embryonic (incompletely differentiated) cells from which the plant grows. It is one of the many layers of bark, between the cork and primary phloem. The function of cork cambium is to produce the cork, a tough protective material. Tunica-Corpus model of the apical meristem. ... For other uses, see Bark (disambiguation). ... In vascular plants, phloem is the living tissue that carries organic nutrients, particularly sucrose, a sugar, to all parts of the plant where needed. ... Cork is a tissue found in some plants, which consists tightly packed dead cells. ...


Synonyms for cork cambium are bark cambium, pericambium or phellogen. Phellogen is defined as the meristematic cell layer responsible for the development of the periderm. Cells that grow inwards from the phellogen are termed phelloderm, and cells that develops outwards are termed phellem or cork (note similarity with vascular cambium). The periderm thus consist of three different layers;

  • phelloderm,
  • phellogen (cork cambium) and
  • phellem.

Growth and development of cork cambium is very variable between different species, and also highly dependent on age, growth conditions etc. as can be observed from the different surfaces of bark; smooth, fissured, tesselated, scaly, flaking off, etc.


Economic importance

  • Commercial cork is derived from the bark of the cork oak (Quercus suber). Cork has many uses including wine bottle stoppers, bulletin boards, coasters, hot pads to protect tables from hot pans, insulation, sealing for lids, flooring, gaskets for engines, fishing bobbers, handles for fishing rods and tennis rackets, etc.
  • Many types of bark are used as mulch.

For other uses, see Cork. ... Binomial name L. The Cork Oak (Quercus suber) is a medium-sized, evergreen oak tree in the section Quercus sect. ... In agriculture and gardening, mulch is a protective cover placed over the soil, primarily to modify the effects of the local climate. ...

See also

Tunica-Corpus model of the apical meristem. ... For other uses, see Cork. ...

References

  • Junikka, L. (1994) Macroscopic bark terminology. IAWA Journal 15(1): 3-45
  • Trockenbrodt, M. (1990) Survey and discussion of the terminology used in bark anatomy. IAWA Bulletin, New Series 11: 141-166.

  Results from FactBites:
 
Cork cambium - Wikipedia, the free encyclopedia (200 words)
Cork cambium is a tissue found in woody plants as part of the periderm.
Cork cambium is one of the plant's meristems - the series of tissues consisting of embryonic (incompletely differentiated) cells from which the plant grows.
Synonyms for cork cambium are bark cambium, pericambium or phellogen.
ninemsn Encarta - Print Preview - Tree (916 words)
The constant divisions of the cambium gradually increase the circumference of the axis.
As the axis continues its expansion, the layers of cork frequently develop characteristic fissures at the surface, and as each cork cambium is split by the expansion of wood, a new cork cambium develops to replace it.
At maturity, the tree axis normally consists of several layers of cork cells, the outer part of which is fissured: the cork cambium, a few layers of crushed phloem, a few layers of functioning phloem, the cambium, and many layers of xylem.
  More results at FactBites »


 

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