Collenchyma plant cells. Light micrograph of a transverse section through collenchyma tissue in the outer stem of a common nettle (Urtica dioica). The collenchyma cell walls are thickened with cellulose (red-orange) so that the center (lumen) of the cell is circular,as seen in this cross-section. The cavity (lumen) contains protoplasm and sometimes structures called chloroplasts. Collenchyma gives support and elasticity to the growing stem,when it is still elongating. Magnification: x100 when printed at 10 centimetres high | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 3509 px × 5300 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |