Acorus calamus rhizome, light micrograph
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Acorus calamus rhizome, light micrograph
Acorus calamus rhizome. Light micrograph of a section through a rhizome from a sweet flag (Acorus calamus) plant. The rhizome has an outer layer with scattered collateral vascular bundles and a central cylindrical core of larger vascular bundles. The inner core has an outer ring (endodermis) and an inner layer (pericycle). The ground tissue is spongy aerenchyma with thin-walled cells and larger inter-cellular spaces to store oxygen. The vascular bundles have a ring of outer xylem (red), which carries water and minerals to the stems, and a surrounding inner phloem (blue), which carries sugar to the rhizome to be stored as starch. Magnification: x4 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6356087
© DR KEITH WHEELER/SCIENCE PHOTO LIBRARY
Bundles Cell Biology Cytological Cytology Endodermis Ground Tissue Histological Histology Microscopy Monocot Monocots Monocotyledon Monocotyledons Pericycle Phloem Rhizome Spaces Stain Stained Structural Structures Thin Walled Tissue Xylem Acorus Calamus Cells Light Micrograph Light Microscope Section Sectioned Sweet Flag
EDITORS COMMENTS
This print showcases the intricate structure of an Acorus calamus rhizome, offering a glimpse into the fascinating world of plant biology. The image reveals a section through the rhizome, highlighting its various components and functions. The outer layer of the rhizome exhibits scattered collateral vascular bundles, while at its core lies a cylindrical arrangement of larger vascular bundles. Delving deeper into this botanical marvel, we encounter an inner core consisting of an outer ring known as endodermis and an inner layer called pericycle. Notably, the ground tissue within the rhizome is composed of spongy aerenchyma with thin-walled cells and spacious intercellular spaces that serve as oxygen reservoirs. These features enable efficient storage and transportation of vital substances within the plant. Examining further, we observe distinct red-colored xylem in concentric rings surrounding blue-hued phloem within each vascular bundle. This signifies their respective roles in carrying water, minerals, and sugars throughout the plant's system. With magnification set at four times when printed at 10 centimeters wide, this light micrograph provides exceptional detail for scientific study or appreciation of nature's complexity. It highlights key aspects such as cell structures, histology patterns specific to monocots like Acorus calamus, and cytological characteristics unique to angiosperms. In summary, this stunning photograph captures not only the beauty but also unveils essential insights into how plants function on a cellular level—an awe-inspiring testament to nature's ingenuity.
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