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.
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.
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.
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.
preserved epidermis reveals extensions of collenchyma
and parenchyma that form triangular ridges, similar to those in winged stems of some
The main nerve, very protuberant, in the adaxial and abaxial face, was strengthened by laminar collenchyma
Plantain leaves also have a layer of collenchyma
cells beneath a relatively thick-walled epidermis (Soekarjo, 1992).
cells are also specialized to provide plants the structural strength they need for support.
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
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.
Plant cells that are closely compacted and provide structural support to the plant.
Axial parenchyma and vascular cambium showed medium activity of phenoloxidasc, this activity increased toward the periphery, principally in the suberized and collenchyma