Science Source Stock Photo - Pine stem, light micrograph

Pine stem, light micrograph

Description: Pine stem. Light micrograph of a section through the stem of a pine (Pinus sp.) tree, showing tracheid cells (white-brown) in the xylem tissue. There are thin files of parenchyma and tracheid cells (orange-white) of the subsidiary medullary rays, which pass food substances radially. Many of the tracheid cell walls have bordered pits (circles) that pass water and minerals side-ways. Magnification: x70 when printed 10 centimeters wide.

Credit:

Dr. Keith Wheeler/Science Source

Unique identifier: SS2598241

Legacy Identifier: SR6223

Type: Image

Size: 5125px × 3417px (~50 MB)

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