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Set 1, Slide 91, Cross Section, Lightfield
StemCS Linked Set

Stem CS

 

Pumpkin Stem CS - Collage 40xPumpkin stem sample has five areas where seem to be vascular bundles. These bundles are quite big compared to bundles in other plants such as zea stem, rice stem, sunflower stem, etc. The center of the stem seems to be empty. There are additional small bundles near the large bundles. The combination of collenchyma tissue and epidermis seems to be thick.

Large Vascular Bundles

Image Data Description
Pumpkin Stem CS - Large Vascular Bundles 40x
40x
The xylem of the large vascular bundles seem to have various sizes of the holes. One hole at the center of the image has a green substance inside.
Pumpkin Stem CS - Large Vascular Bundles 100x
100x
This is close-up of the same area. The cells between the holes seem to have thicker cell walls than the other cells do. Some cells seem to have a net inside of them.
Pumpkin Stem CS - Large Vascular Bundles 200x
200x
The cells in the edge of the bundle seem to be squeezed together so that the size of the cells is small.

Small Vascular Bundles

Image Data Description
Pumpkin Stem CS - Small Vascular Bundles 100x
100x
The small vascular bundles seem a lot similar to the large vascular bundles. 
Pumpkin Stem CS - Small Vascular Bundles 400x
400x
Some cells contain nuclei inside of them. However, one cell in the image seems to have strange object inside of it. This object seems to have rough surface.

Collenchyma

Image Data Description
Pumpkin Stem CS - Collenchyma 200x
200x
There are a few objects that are growing out of the epidermis. These objects look similar to root hairs.
Pumpkin Stem CS - Collenchyma 200x
200x
The cells in this area appear to be growing out of the epidermis. These cells are huge and form a sort of bump on the epidermis.
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