Raffi at 05:23, 6 April 2007

2007-04-06T05:23:06Z

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The '''vascular cambium''' is a lateral [[meristem]]: The vascular cambium is the source of both the [[secondary xylem]] (inwards) and the secondary [[phloem]] (outwards), and is located between these tissues in the stem and root. A few leaves even have a vascular cambium.<ref>Ewers, F.W. 1982. Secondary growth in needle leaves of ''Pinus longaeva'' (bristlecone pine) and other conifers: Quantitative data. ''American Journal of Botany'' 69: 1552-1559. [http://links.jstor.org/sici?sici=0002-9122(198211%2F12)69%3A10%3C1552%3ASGINLO%3E2.0.CO%3B2-K]</ref>

The vascular cambium usually consist of two types of cells:
* Fusiform initials (tall cells, [[wiktionary:axial|axial]]ly-oriented)
* Ray initials (almost isodiametric cells - smaller and round to angular in shape)

Vascular cambium is a type of [[meristem]] - a tissue consisting of embryonic (incompletely differentiated) [[Cell (biology)|cell]]s from which other (and more differentiated) plant tissues originate. Primary meristems are the [[apical meristem]]s on root tips and shoot tips. Another lateral meristem is the [[cork cambium]], which produces cork, part of the bark.

Vascular cambia are found in [[dicot]]s and [[gymnosperm]]s but not [[monocot]]s, which usually lack secondary growth.

For successful [[grafting]], the vascular cambia of the stock and scion must be aligned so they can grow together.

== Synonyms ==
* wood cambium
* main cambium
* bifacial cambium

==References==
<references/>

== See also ==
*[[Meristem]]
*[[Cork cambium]]
*[[Unifacial cambium]]

== External links ==
* Pictures of [http://botweb.uwsp.edu/anatomy/vascularcambium.htm Vascular cambium]
* [http://www.sbs.utexas.edu/mauseth/weblab/webchap3par/3.2-5.htm Detailed description - James D. Mauseth]

[[Category:Plant physiology]]
[[Category:Plant anatomy]]
[[Category:Plant cells]]

Vascular cambium - Revision history

Raffi at 05:23, 6 April 2007