Leaf tissue structure, SEM

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Leaf tissue structure, SEM

Leaf tissue structure. Coloured scanning electron micrograph (SEM) of a section through the edge of a leaf from the Common Box (Buxus sempervirens). The surface of the leaf is covered in closely packed circular cells (pink/orange) that make up the epidermis. Below the epidermis are palisade mesophyll layers, made up of elongated column-like cells (yellow) containing chloroplasts. Chloroplasts (not seen) contain a green pigment called chlorophyll, which the plant uses to harness energy from the Sun (a process known as photosynthesis). At the centre of the leaf (green) is the spongy mesophyll, which has large intracellular spaces for gaseous exchange. Magnification: x200 when printed 10 centimetres tall

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6288743

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Axial Cellular Cross Section Epidermis False Colour Histological Histology Palisade Mesophyll Spongy Mesophyll Tissue Transverse Buxus Sempervirens Cells Common Box False Coloured Section Sectioned

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