Section through wood of Ash tree

Section through wood of Ash tree

B725/0251 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.2MB

Downloadable file size: 9.0MB

Price image Pricing

Please login to use the price calculator


Credit: JOHN DURHAM/SCIENCE PHOTO LIBRARY

Caption: Ash wood. Light micrograph of a tangential longitudinal section through wood of the Ash tree, Fraxinus excelsior. Running top to bottom (purple) are thick-walled xylem vessels known as tracheids. Between some of the tracheids are lenticular- shaped medullary rays (red) seen in cross- section. The rays consist of rounded parenchyma cells that form radial lines perpendicular to the tracheids. At left, sieve cells (dotted) are seen. Tracheids function in conducting water up the stem, as well as giving mechanical support to the tree. The ray system is thought to transport water across the wood. Illuminated by phase contrast. Magnification: x200 at 35mm size.

Release details: Model release not required. Property release not required.

Keywords: ash, ash tree, botany, fraxinus excelsior, light micrograph, nature, plant, plants, sieve element, tangential section, tracheid, wood, xylem

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.