Stem section, SEM

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Stem section, SEM

Stem section. Coloured scanning electron micrograph (SEM) of a section through a stem of a woody dicotyledon plant. This stem consists mainly of secondary xylem tissue (orange, centre), a thin layer of secondary phloem tissue (not clearly seen) surrounding the xylem, and an outer cork (brown). The xylem contains many vessels that transport water and mineral nutrients from the roots throughout the plant. The phloem transports carbohydrates and plant hormones around the plant. The cells of the cork are reinforced with lignin, which helps to maintain structural support. Magnification: x20 when printed 10 centimetres wide

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

Media ID 6290825

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Axial Cellular Structure Cork Cross Section Dicot Dicotyledon False Colour Histological Histology Lignen Lignin Phloem Secondary Stem Support Tissue Transport Transverse Woody Xylem False Coloured Section Sectioned

EDITORS COMMENTS
This print from Science Photo Library showcases the intricate beauty of a stem section in a woody dicotyledon plant. The image, captured using a scanning electron microscope (SEM), reveals the complex cellular structure that supports and transports vital resources throughout the plant. In this stunning SEM image, we can observe the various layers that make up the stem. The orange-colored secondary xylem tissue forms the central part of the stem, responsible for transporting water and essential minerals from roots to other parts of the plant. Surrounding this layer is a thin band of secondary phloem tissue, which plays a crucial role in transporting carbohydrates and hormones. The outermost layer visible here is made up of cork cells, providing protection and structural support to the stem. These cork cells are reinforced with lignin, ensuring durability and stability even under harsh conditions. With its false-colored presentation, this print highlights not only scientific precision but also artistic elegance. It serves as a reminder of nature's remarkable complexity and resilience. Whether you're an enthusiast in botany or simply appreciate natural wonders, this print offers an awe-inspiring glimpse into the microscopic world within plants – showcasing their incredible ability to sustain life through efficient transport systems embedded within their stems.

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