LM of a root nodule
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LM of a root nodule
Light micrograph of a root nodule of the broad bean, Vicia faba, a leguminous plant. The nodule develops in response to invasion by the bacteria Rhizobium sp. The bacteria convert atmospheric nitrogen into an organic form essential to the plants survival. Bacteria enter the plant through root hairs and pass via an infection thread to the nodule site. Once there, they lose their cell walls and divide repeatedly, swelling as they do so. They are now known as bacteroids. The nodule consists of a central region (purple) containing bacteroids surrounded by a loose, spongy region called the cortex. Magnification: x40 at 35mm size
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9194047
© POWER AND SYRED/SCIENCE PHOTO LIBRARY
Bacteria Bacterial Bacteriology Bacterium Micro Organisms Microbe Microbes Microbiology Soil Symbiosis Light Micrograph
EDITORS COMMENTS
This print showcases the intricate world of symbiosis between plants and bacteria. The image, titled "LM of a root nodule" provides a glimpse into the fascinating relationship between the broad bean plant (Vicia faba) and Rhizobium sp. , a type of bacteria. The photograph reveals the development of a root nodule in response to bacterial invasion. As atmospheric nitrogen is converted into an organic form crucial for the plant's survival, these beneficial bacteria enter through root hairs and travel via an infection thread to reach the nodule site. Once there, they undergo remarkable transformations: shedding their cell walls and dividing repeatedly, resulting in swelling bacteroids. The central region of this vibrant purple-hued nodule contains these transformed bacteroids surrounded by a loose and spongy cortex. This unique structure allows for efficient exchange of nutrients between the plant and its microbial partners. At a magnification level of x40 at 35mm size, this light micrograph captures every intricate detail with stunning clarity. It serves as a testament to both the beauty and complexity found within our natural world. This mesmerizing image from Science Photo Library offers us insight into soil microbiology, highlighting how microorganisms play vital roles in sustaining life on Earth while fostering mutualistic relationships with plants like Vicia faba.
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