collenchyma

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Fig. 116 Collenchyma . Transverse section.

collenchyma

a type of plant tissue in which the cells are similar to PARENCHYMA but are smaller and have cellulose wall thickenings in layers, particularly at the angles when seen in transverse section. Collenchyma acts as a living supporting tissue, especially in young stems and leaves.

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mechanical tissues

References in periodicals archive ?

It was noted that these lacunae were arranged in four rows around the central cylinder and usually separated by row of collenchyma cells (that rich by starch grain) between the lacunae adjacent.

A new record of the invasive species Hydrilla verticillata (Linn.F.) royal on the Iraqi Rivers

4 = visual damage on leaves and flower buds 76 - 100 % Moreover, collected samples were sectioned to study epidermis, collenchyma and chlorenchyma by Poornima et al.

EVALUATION OF YARDLONG BEAN AND COWPEA FOR RESISTANCE TO APHIS CRACCIVORA KOCH IN SOUTHERN PART OF THAILAND

Collenchyma cells usually occur as discrete groups of cells that form a tissue directly beneath the epidermis in stems and petioles, and they often border the veins in dicot leaves.

Chapter 7: Growth: cells to tissue

The cells with un-lignified, thickened wall, with cap or U-shape around the meristeles belong to the collenchyma, in contrast with other fern families.

Anatomia de seis especies de helechos del genero Dryopteris (Dryopteridaceae) de Mexico

preserved epidermis reveals extensions of collenchyma and parenchyma that form triangular ridges, similar to those in winged stems of some

Systematics, ontogeny, and phylogenetic implications of exceptional anatomically preserved cycadophyte leaves from the Middle Jurassic of Bearreraig Bay, Skye, northwest Scotland

The main nerve, very protuberant, in the adaxial and abaxial face, was strengthened by laminar collenchyma.

Morphoanatomical studies of Uncaria tomentosa and Uncaria guianensis bark and leaves

Plantain leaves also have a layer of collenchyma cells beneath a relatively thick-walled epidermis (Soekarjo, 1992).

Nutritive value of chicory and English plantain forage

Collenchyma cells are also specialized to provide plants the structural strength they need for support.

Chapter 1 The green plant

In the adaxial surface, a cortical parenchyma is located below of epidermis, but in the abaxial surface, the cortical parenchyma is separated from the epidermis by a few layers of annular collenchyma (Figure 2G).

Leaf anatomy of Cordiera sessilis (Veil.) Kuntze (Rubiaceae)/ Anatomia foliar de Cordiera sessilis (Vell.) Kuntze (Rubiaceae)

Nymphaea oxypetala stands out from the other evaluated species for having a greater number of differential characters, including angular collenchyma and the absence of bicollateral bundles in the petiole.

Compared leaf anatomy of Nymphaea (Nymphaeaceae) species from Brazilian flood plain/(Anatomia comparativa da folha de especies de Nymphaea (Nymphaeaceae) da planicie de inundacao brasileira)

Collenchyma Plant cells that are closely compacted and provide structural support to the plant.

Glossary

Axial parenchyma and vascular cambium showed medium activity of phenoloxidasc, this activity increased toward the periphery, principally in the suberized and collenchyma cells.

Secondary stem anatomy and uses of four drought-deciduous species of a tropical dry forest in Mexico