African teak woody stem. Polarised light micrograph of a section through the stem of an African teak (Pericopsis elata) plant,showing its diffuse-porous xylem tissue. The xylem vessels (vertical,dark blue),which carry most of the water,are scattered throughout the xylem tissue. Some of the vessels' walls can be seen. These have a network of perforation pits that let water sideways if there is a blockage in the vessel. The multicoloured longitudinal cells are fibres,and fibre tracheids. Medullary rays can also be seen (blackish). Magnification: x6 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 3417 px × 5125 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |