Pine stem (Pinus silvestris). Fluorescence and polarised light micrograph of a section through a single annual growth ring in the stem of a pine (Pinu
Pine stem (Pinus silvestris). Fluorescence and polarised light micrograph of a section through a single annual growth ring in the stem of a pine (Pinus sp.) tree, showing large thin-walled tracheid cells of younger spring wood and smaller thick-walled tracheid cells of older autumn wood. Magnification: x40 when printed 10 centimetres wide.
Size: 5616px × 3744px
Photo credit: © FRANK FOX/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: autumn, biological, biology, botanical, botany, canal, cell, cells, close-, cytological, cytology, detail, duct, flora, growing, growth, gymnosperm, gymnosperms, histological, histology, lacuna, light, lm, micrograph, microscope, microscopy, nature, older, parenchyma, pine, pinus, plant, plants, polarised, resin, ring, section, sectioned, sp., spring, stain, stained, stem, structural, structure, structures, thick-walled, thin-walled, tissue, tracheid, tracheids, tree, trunk, wood, young, younger
