Wheat leaf. Light micrograph of a section through a leaf from a common wheat (Triticum aestivum) plant. The vascular bundle (centre to upper centre),
Wheat leaf. Light micrograph of a section through a leaf from a common wheat (Triticum aestivum) plant. The vascular bundle (centre to upper centre), or 'vein', of the leaf contains xylem vessels surrounded by xylem parenchyma (protoxylem). Underneath are larger vessels and smaller tracheids (red). beneath this is the phloem, which is composed of thin sieve tubes (red) and small companion cells. There are two outer circles around the vascular bundle, a pericycle (red) and bundle sheath (blue). The vein is joined to the lower epidermis by sclerenchyma supporting tissue. Magnification: x40 when printed 10 centimetres wide.
Size: 3417px × 5125px
Photo credit: © DR KEITH WHEELER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: aestivum, angiosperm, angiosperms, background, biological, biology, botanical, botany, bundle, bundles, cell, cells, close-, common, companion, cytological, cytology, detail, epidermis, histological, histology, leaf, light, micrograph, microscope, microscopy, monocot, monocots, monocotyledon, monocotyledons, parenchyma, pericycle, phloem, plant, plants, protoxylem, section, sectioned, sheath, sieve, small, stain, stained, structural, structure, structures, supporting, tissue, tracheid, tracheids, triticum, tube, tubes, vascular, vein, vessel, vessels, wheat, white, xylem
