Lupin root nodules, light micrograph
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Lupin root nodules, light micrograph
Lupin root nodules. Light micrograph of a section through the root nodule of a lupin (Lupinus lupin) plant. The plants root nodules are full of nitrogen-fixing Rhizobium sp. bacteria that form a symbiotic relationship with the plant. They take nitrogen from the air and fix it to nitrogenous substances that can be used by the plant. This enables the host plant to grow in soils deficient in these nitrogenous substances. In return the host plant passes sugars, water and minerals to the bacteria in its roots. Magnification: x70 when printed 10 centimetres wide
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Media ID 6339667
© DR KEITH WHEELER/SCIENCE PHOTO LIBRARY
Bacteria Cell Biology Cytological Cytology Dicot Dicots Dicotyledon Dicotyledons Histological Histology Lupin Microscopy Nitrogen Fixation Nitrogen Fixing Nodules Roots Stain Stained Structural Structures Symbiosis Symbiotic Relationship Tissue Cells Light Micrograph Light Microscope Section Sectioned
EDITORS COMMENTS
This print showcases the intricate beauty of lupin root nodules, offering a glimpse into the fascinating world of plant-microbe symbiosis. In this light micrograph, we witness a section through the root nodule of a lupin (Lupinus lupin) plant, revealing an extraordinary sight. These nodules are teeming with nitrogen-fixing Rhizobium sp. bacteria that establish a mutually beneficial relationship with their host. The image unveils how these remarkable bacteria take atmospheric nitrogen and convert it into essential nitrogenous substances for the plant's growth in nutrient-deficient soils. As part of this symbiotic bond, the host plant reciprocates by providing sugars, water, and minerals to nourish its bacterial partners residing within its roots. With meticulous staining techniques employed in microscopy, this photograph captures every structural detail and cellular arrangement present within these nodules. The white background accentuates the vibrant hues and delicate patterns exhibited by these microscopic entities. As we delve deeper into botany and biological sciences through this image, we gain insight into angiosperm histology and cytology while unraveling the wonders of nitrogen fixation in dicotyledonous plants like lupins. This visual masterpiece serves as a testament to Nature's ingenious mechanisms that enable life to thrive even under challenging circumstances.
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