Clostridium perfringens bacterium with spore
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Clostridium perfringens bacterium with spore
False-colour transmission electron micrograph (TEM) of a Clostridium perfringens bacterium with endospore. This species of Gram-positive, spore- forming soil bacteria is seen towards the end of spore formation (sporulation). At lower centre, it has developed an endospore (green) with membrane (red). This is a resting phase induced by adverse conditions, & the spore will germinate when condi- tions become favourable. C.perfringens causes blood poisoning, food poisoning & gas gangrene in humans. It produces an exotoxin (alpha-toxin) that can digest human tissue, and contaminate meat food sources. Magnification: x20, 000 at 6x7cm size
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6293699
© CNRI/SCIENCE PHOTO LIBRARY
Bacteria Bacterial Bacteriology Bacterium Clostridium Electron Micrograph Food Poisoning Gangrene Infect Micro Organisms Microbe Microbes Spore Transmission Type Micro Biology
EDITORS COMMENTS
This print showcases a False-colour transmission electron micrograph (TEM) of a Clostridium perfringens bacterium with an endospore. The image reveals the intricate details of this Gram-positive, spore-forming soil bacteria as it nears the completion of sporulation. At the lower center, we can observe the development of an endospore, depicted in striking green coloration and surrounded by a vibrant red membrane. The formation of these endospores is triggered by adverse conditions, serving as a resting phase for the bacterium until more favorable circumstances arise. Once conditions become conducive again, these dormant spores will germinate and resume their active state. However, despite its seemingly innocuous appearance under magnification at x20,000 and 6x7cm size, Clostridium perfringens is far from harmless to humans. This species is notorious for causing blood poisoning, food poisoning, and gas gangrene in individuals who come into contact with it. C. perfringens produces an exotoxin known as alpha-toxin that possesses the ability to digest human tissue while also contaminating meat-based food sources. Therefore, understanding and studying this bacterial pathogen becomes crucial in order to combat its detrimental effects on public health. This remarkable photograph serves as both a scientific marvel and a stark reminder of the microscopic world that surrounds us - one filled with both beauty and potential danger.
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