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BEECH TREE STEM, LIGHT MICROGRAPH
Beech tree stem. Polarised light micrograph of a section through the woody stem of a common beech tree (Fagus sylvatica), showing diffuse-porous xylem vessels (dark blue) scattered throughout the tissue. The multicoloured cells are fibres, and fibre tracheids, which carry water. The horizontal files are the medullary rays, which carry water, minerals and food to the outer and inner tissues. Magnification: x32, when printed 10 centimetres wide. (KEYSTONE/SCIENCE PHOTO LIBRARY/DR KEITH WHEELER/SCIENCE PHOTO LIBRARY)
Instruktionen
COPYRIGHTPFLICHTIG
Lizenz
Rights Managed
Erstellungsdatum
20120118
Ort
Credit
KEYSTONE
Source
SCIENCE PHOTO LIBRARY SPL
Byline
DR KEITH WHEELER
Grösse
3417 x 5125 px
Dateityp
JPEG