Tracheary vessels in oak wood

Tracheary vessels in oak wood

B725/0180 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 52.8MB

Downloadable file size: 4.8MB

Price image Pricing

Please login to use the price calculator


Caption: False-colour scanning electron micrograph of a vertical section through oak heartwood, the wood (secondary xylem) of Quercus robur. The large, tubular structures are tracheary vessels which have become blocked by bladder-like ingrowths (yellow) 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 smaller tubes seen on the right of the photo are late-wood vessels. The compact tissue separating the two types of wood is the tree's ray system. Oak is a hardwood. Magnification: x12 at 6x4.5cm size.

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

Keywords: botany, hardwood, heartwood, nature, oak, plant, plants, quercus robur, ray, tylose, vessel, wood

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