Yew tree leaf, light micrograph
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Yew tree leaf, light micrograph
Yew tree leaf. Light micrograph of a transverse section through the leaf (pinna) of a yew tree, (Taxus baccata). The structure has xerophytic (drought plants) characteristics. The lower and upper epidermal cells are covered in a thick waterproof cuticle layer. Under the upper epidermis are two layers of palisade mesophyll, below which are the irregular cells of the spongy mesophyll. The vascular bundle (centre) consists of upper xylem tracheid cells (red) and lower phloem sieve cells (blue). A cambium layer is in-between the xylem and phloem. Magnification: x106 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6299173
© DR KEITH WHEELER/SCIENCE PHOTO LIBRARY
Cambium Cell Biology Cytology Epidermis Gymnosperm Gymnosperms Mid Rib Palisade Mesophyll Plant Structure Support Supportive Taxus Baccata Tracheid Tracheids Transverse Section Vascular Bundle Xerophyte Xylem Light Micrograph Light Microscope Sectioned
EDITORS COMMENTS
This print showcases the intricate beauty of a yew tree leaf, captured through a light micrograph. The transverse section of the leaf reveals fascinating xerophytic characteristics, which are adaptations to survive in drought conditions. The upper and lower epidermal cells are protected by a thick waterproof cuticle layer, ensuring minimal water loss. Beneath the upper epidermis lie two layers of palisade mesophyll, responsible for photosynthesis. Below them, we find irregular cells forming the spongy mesophyll. At the center of this structure lies the vascular bundle, consisting of upper xylem tracheid cells (depicted in red) and lower phloem sieve cells (shown in blue). Separating these two tissues is a cambium layer that aids in growth and repair. With a magnification level of x106 when printed at 10 centimeters wide, this image allows us to appreciate nature's complexity on a microscopic scale. Against a white background, this stunning photograph highlights key elements such as cell structures and botanical features. Through its detailed depiction of plant biology and cytology, this print serves as an educational tool for botany enthusiasts or researchers studying plant structure. It offers insights into gymnosperms like yew trees while showcasing their unique adaptations as xerophytes. This remarkable piece from Science Photo Library invites viewers to explore the wonders hidden within our natural world.
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