Nitrogen-fixing root nodule, micrograph
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Nitrogen-fixing root nodule, micrograph
Nitrogen-fixing root nodule. Light micrograph of a section through a root nodule of a broad bean plant (Faba vulgaris) showing the symbiotic Rhizobium leguminosarum bacteria (purple) within it. These bacteria are able to convert inert atmospheric nitrogen into ammonia, which can then be converted into other nitrogenous compounds essential for plant metabolism. The presence of the symbiotic bacteria in the roots of the bean plant allows it to grow in nitrogen-poor soils, which are unable to support many other plants. Nitrogen-fixing plants are widely grown in agriculture to return nutrients to soil after they have been depleted by the growth of other crops. Magnification: x35 when printed 10cm wide
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Media ID 9194043
© POWER AND SYRED/SCIENCE PHOTO LIBRARY
Bacteria Bacterial Bacteriology Bacterium Broad Bean Legume Micro Organisms Microbe Microbes Microbiology Mutualism Nodule Root Symbiosis Symbiotic Cells Light Micrograph Light Microscope Microbiological
EDITORS COMMENTS
This print showcases the intricate world of nitrogen-fixing root nodules. In this light micrograph, we are granted a glimpse into the symbiotic relationship between a broad bean plant and the Rhizobium leguminosarum bacteria. The purple-hued bacteria can be seen residing within the root nodule, their presence enabling an extraordinary feat - converting inert atmospheric nitrogen into ammonia. The significance of this process lies in its ability to produce essential nitrogenous compounds crucial for plant metabolism. This remarkable adaptation allows the bean plant to thrive even in nitrogen-poor soils that would typically hinder other plants' growth. It is no wonder that these nitrogen-fixing plants have become widely cultivated in agriculture as they replenish soil nutrients depleted by previous crops. At a magnification of x35 when printed 10cm wide, this image reveals the microscopic marvels at play within our natural world. It serves as a testament to the intricate web of life and highlights how mutualism between organisms can lead to astonishing adaptations and survival strategies. As we delve deeper into botany, biology, bacteriology, and microbiology through this photograph, we gain newfound appreciation for nature's ingenuity and resilience. Let us celebrate these microorganisms' role in sustaining our ecosystems while contemplating how their discoveries may shape future agricultural practices without commercial intentions but with scientific curiosity at heart.
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