Pine tree needle. Light micrograph of a transverse cross-section through a needle from a black pine (Pinus nigra) tree. This leaf is needle-like in or

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Pine tree needle. Light micrograph of a transverse cross-section through a needle from a black pine (Pinus nigra) tree. This leaf is needle-like in order to reduce water loss (transpiration). The epidermis consists of thick-walled cells covered with a layer of cuticle. Below the epidermis is the mesophyll, which includes the resin canals. The central oval is the vascular cylinder, surrounded by the endodermis. Bright field illumination. Magnification: x70 when printed at 10 centimetres wide.

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Size: 7360px × 4577px
Photo credit: © MAREK MIS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: austrian, background, biological, biology, black, botanical, botany, bright, brightfield, cell, cells, cellular, cross-section, cut, cut-, cut-outs, cuticle, cutout, cutouts, endodermis, field, flora, leaf, light, lm, loss, mesophyll, micrograph, microscope, microscopy, nature, needle, nigra, outs, pine, pinus, plant, polarized, reduced, resin, section, sectioned, semi-circle, tissue, transpiration, transverse, tree, water, white