E. coli bacteria conjugating
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E. coli bacteria conjugating
Conjugating E.coli bacteria. Coloured transmission electron micrograph (TEM) of Escherichia coli bacteria undergoing conjugation (coupling). E.coli are gram-negative rod-shaped bacteria found in the healthy human intestine. They may cause food poisoning. Here, some bacteria are conjugating, a process by which DNA genetic material is transferred from bacteria to bacteria. Thin hollow " hairs" called pili are seen joining the bacteria through which the DNA passes. In this way genes, such as for antibiotic resistance, can be passed on. This " sex" between bacteria was discovered in 1946. Magnification: x6000 at 35mm size
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Media ID 6276459
© DR LINDA STANNARD, UCT/SCIENCE PHOTO LIBRARY
Bacteria Bacterial Bacteriology Bacterium Conjugating Conjugation Electron Micrograph Escherichia Coli In Bacteria Micro Organisms Microbe Microbes Of Bacteria Transmission Micro Biology
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This print from Science Photo Library showcases the intricate process of E. coli bacteria conjugating. In this coloured transmission electron micrograph, we witness the fascinating world of Escherichia coli bacteria undergoing conjugation, a crucial mechanism for genetic exchange between these gram-negative rod-shaped organisms. E. coli is commonly found in the healthy human intestine but can also be responsible for causing food poisoning. The image highlights a group of bacteria engaging in conjugation, wherein DNA material is transferred from one bacterium to another. This transfer occurs through thin hollow "hairs" known as pili that connect and facilitate the passage of genetic information. Conjugation plays a significant role in spreading genes such as antibiotic resistance among bacterial populations, making it an essential area of study in bacteriology and microbiology. Its discovery dates back to 1946 when scientists first observed this bacterial "sex". At a magnification level of x6000 at 35mm size, this transmission electron micrograph offers us an up-close look into the microscopic world of these remarkable microbes. It serves as a reminder of both their potential harm and their incredible ability to adapt and survive through genetic exchange. Science Photo Library continues to provide invaluable visual resources like this photograph, enabling researchers and enthusiasts alike to explore and understand the complex realm of bacteria without commercial limitations or restrictions on use.
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