Lexic.us

Definition of Collenchyma

1. n. A tissue of vegetable cells which are thickend at the angles and (usually) elongated.

Definition of Collenchyma

1. Noun. (biology) A supporting ground tissue just under the surface of various leaf structures formed before vascular differentiation. ¹

¹ Source: wiktionary.com

Definition of Collenchyma

1. [n -S]

Medical Definition of Collenchyma

1. Plant tissue in which the primary cell walls are thickened, especially at the cell corners. Acts as a supporting tissue in growing shoots, leaves and petioles. Often arranged in cortical ribs, as seen prominently in celery and rhubarb petioles. Lignin and secondary walls are absent, the cells are living and able to grow. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Collenchyma

Literary usage of Collenchyma

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal of the Royal Microscopical Society by Royal Microscopical Society, London (1882)
"... the secretion of the soft nucleus and the soft layers only on the supposition that intussusception is at the same time taking place. collenchyma/—H. ..."

2. Histology of Medicinal Plants by William Mansfield (1916)
"collenchyma CELLS collenchyma cells form the principal medicinal tissue of ... In certain herbs the collenchyma forms several of the outer layers of the ..."

3. Handbook of Practical Botany for the Botanical Laboratory and Private Student by Eduard Strasburger (1887)
"45**, showing collenchyma-cells from the leaf-stalk of a Begonia.] Outside [FIG. 45**. ... These collenchyma thickenings are capable of greatly swelling. ..."

4. The New International Encyclopædia edited by Daniel Coit Gilman, Harry Thurston Peck, Frank Moore Colby (1903)
"(2) collenchyma differs from parenchyma, of which it is hardly more than a variety, ... collenchyma. 1, Longitudinal section; t, transverse section. only in ..."

5. An Introduction to Vegetable Physiology by Joseph Reynolds Green (1900)
"In forms which are intermediate in requirements, such as the petioles of leaves, layers of collenchyma are developed below the epidermis (fig. 25). ..."

6. An Introduction to Vegetable Physiology by Joseph Reynolds Green (1907)
"... itself In forms which are intermediate in requirements, such as the petioles of leaves, layers of collenchyma are developed below the epidermis (fig. ..."

7. Elements of Vegetable Histology by Daniel Base (1912)
"collenchyma, or thick-angled tissue, is closely related to ordinary parenchyma, ... Sometimes collenchyma forms a continuous circle, as in the petiole of ..."

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