Pine wood structure,light micrograph

Numéro d’image : 11564905
Pine wood structure,light micrograph
Pine wood structure. Polarised light micrograph of a longitudinal radial section through the stem wood (xylem) of the eastern white pine (Pinus strobus). The xylem is made up of tracheids (blue),long narrow cells with a single row of round bordered pits (red and light blue) that allow water to pass through laterally. The wood rays (horizontal bands) can be seen at right angles to the tracheids. The rays are made up of wood parenchyma with thin walls and wood tracheids with thick walls (dark rows of cells). The rays carry water from the xylem to other parts of the outer stem and also store food. Magnification: x46 when printed 10 centimetres wide
Licence : Droits gérés
Crédit: Science Photo Library / Wheeler, Dr. Keith
Taille de l’image : 5482 px × 5187 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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