This image is not available for purchase in your country.

Tinted SEM of Quercus robur.

Tinted SEM of Quercus robur.

B725/0171

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY

Caption

False-colour scanning electron micrograph of oak heartwood, the wood (secondary xylem) of Quercus robur, showing both vertical (bottom) & horizontal (top) cut surfaces. The large, vertical tube-like structures are tracheary vessels which have become blocked by bladder-like ingrowths known as tyloses. In young sapwood the vessels carry water & nutrients from the roots to the leaves, but after a few years they become blocked & no longer carry sap. The large vessels occur in early (spring) wood; the small, dark circles at top are the cut ends of the smaller late-wood vessels. A broad ray, split due to drying, is seen at top. Oak is graded as a hardwood. Mag: x8 at 35mm size.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}