Gram Positive Collection

Neutrophil engulfing MRSA, SEM C018 / 8596
Neutrophil engulfing MRSA. Coloured scanning electron micrograph (SEM) of a neutrophil white blood cell (green) engulfing methicillin-resistant Staphylococcus aureus bacteria (MRSA, pink)

Cell types, artwork
Cell types. Cutaway artwork with a scale bar (upper right, in micrometres) showing the relative sizes of eukaryotic cells (those containing a nucleus) and prokaryotic cells (those lacking a nucleus)

Tuberculosis bacteria. Computer artwork of Mycobacterium tuberculosis bacteria. These Gram- positive rod-shaped bacteria cause the disease tuberculosis

Mycobacterium chelonae bacteria, SEM
Mycobacterium chelonae bacteria, coloured scanning electron micrograph (SEM). These Gram-positive rod-shaped bacteria are found in soil and water

Bacillus bacterial genus

Propionibacterium acnes C014 / 0631
Propionibacterium acnes bacteria, coloured scanning electron micrograph (SEM). This bacteria is found deep in the hair follicles and pores of the skin

Rod shaped bacillus bacteria
3D-computer artwork of bacillus bacteria. These rod-shaped bacteria (bacilli) are widespread in soil and in the air. Many bacillus bacteria are responsible for food spoilage

Lactobacillus bacteria, SEM
Lactobacillus sp. bacteria, coloured scanning electron micrograph (SEM). Lactobacillus bacteria are probiotic bacteria, which are useful for human and animal health as they produce bacteriocins

Staphylococcus aureus bacteria, SEM C017 / 7137
Staphylococcus aureus bacteria, coloured scanning electron micrograph (SEM). These Gram-positive coccus (round) bacteria are found on the skin and mucous membranes of humans and many animals

MRSA and dead neutrophil, SEM C018 / 8601
MRSA and dead neutrophil. Coloured scanning electron micrograph (SEM) of methicillin-resistant Staphylococcus aureus bacteria (MRSA, yellow) and a dead neutrophil white blood cell (red)

Neutrophil engulfing MRSA, SEM C018 / 8597
Neutrophil engulfing MRSA. Coloured scanning electron micrograph (SEM) of a neutrophil white blood cell (bottom) engulfing methicillin-resistant Staphylococcus aureus bacteria (MRSA, yellow)

Staphylococcus aureus bacteria, SEM C017 / 7138
Staphylococcus aureus bacteria, coloured scanning electron micrograph (SEM). These Gram-positive coccus (round) bacteria are found on the skin and mucous membranes of humans and many animals

Staphylococcus aureus bacteria, SEM C017 / 7136
Staphylococcus aureus bacteria, coloured scanning electron micrograph (SEM). These Gram-positive coccus (round) bacteria are found on the skin and mucous membranes of humans and many animals

Gram-stained bacteria C016 / 7500
Gram-stained bacteria. Computer artwork showing gram-positive (blue) and gram-negative (red) bacteria. Gram-positive bacteria are those that are stained dark blue or violet by Gram staining

Propionibacterium acnes C014 / 0635
Propionibacterium acnes bacteria, coloured scanning electron micrograph (SEM). This bacteria is found deep in the hair follicles and pores of the skin

Propionibacterium acnes C014 / 0634
Propionibacterium acnes bacteria, coloured scanning electron micrograph (SEM). This bacteria is found deep in the hair follicles and pores of the skin

Propionibacterium acnes C014 / 0633
Propionibacterium acnes bacteria, coloured scanning electron micrograph (SEM). This bacteria is found deep in the hair follicles and pores of the skin

Propionibacterium acnes C014 / 0630
Propionibacterium acnes

Neutrophil engulfing MRSA, SEM C017 / 8301
Neutrophil engulfing MRSA. Coloured scanning electron micrograph (SEM) of a neutrophil white blood cell (purple) engulfing methicillin-resistant Staphylococcus aureus bacteria (MRSA, yellow)

Neutrophils and anthrax bacteria, SEM
Neutrophils and anthrax bacteria. Coloured scanning electron micrograph (SEM) of neutrophil white blood cells (yellow) and Bacillus anthracis bacteria (orange)

Streptococcus thermophilus bacteria, SEM
Streptococcus thermophilus bacteria, coloured scanning electron micrograph (SEM). These lactic acid bacteria are found in fermented milk products, and are generally used in yoghurt production

Bacterial cell wall comparison, artwork
Bacterial cell wall comparison. Computer artwork comparing the structure of the cell wall from a gram-negative bacterium (left) with that of a gram-positive bacterium (right)

Staphylococcus aureus MRSA bacteria, computer artwork. Methicillin-resistant Staphylococcus aureus (MRSA, orange) is a Gram-positive, round (coccus) bacterium, shown here on a filamentous surface

Spherical bacteria, artwork
Spherical bacteria (cocci), computer artwork

Listeria bacteria, TEM
Listeria sp. bacteria, coloured transmission electron micrograph (TEM). Listeria are Gram-positive rod-shaped bacteria. The species L

Anthrax bacteria, TEM
Anthrax bacteria. Coloured transmission electron micrograph of Bacillus anthracis bacteria. B. anthracis is a Gram-positive, rod-shaped, spore- forming bacterium that causes the disease anthrax

Listeria bacteria, SEM
Listeria sp. bacteria, coloured scanning electron micrograph (SEM). Listeria are Gram-positive rod-shaped bacteria. The species L. monocytogenes is a human pathogen, causing the disease listeriosis

Clostridium bacterium. Computer artwork of an Clostridium sp. bacterium. This is a Gram- positive, rod-shaped, spore-forming bacterium that is found in soil, and human and animal intestines

Bacteria infecting macrophage cells, SEM
Bacteria infecting macrophage cells. Coloured scanning electron micrograph (SEM) of Bacillus anthracis bacteria (purple) infecting macrophage white blood cells

Tuberculosis bacteria, TEM
Tuberculosis bacteria. Coloured transmission electron micrograph (TEM) of a section through Mycobacterium tuberculosis bacteria

Clostridium difficile bacteria, SEM
Clostridium difficile bacteria, coloured scanning electron micrograph (SEM). These rod-shaped bacteria cause pseudomembranous colitis, one of the most common hospital-acquired infections

Lactobacillus casei Shirota bacteria, SEM
Lactobacillus casei Shirota bacteria, coloured scanning electron micrograph (SEM). This strain of bacteria is found in the Japanese probiotic product Yakult

Anthrax bacteria. Computer artwork of Bacillus anthracis bacteria (green) releasing spores (orange). These are Gram-positive, rod-shaped, spore-forming bacteria

Clostridium botulinum bacteria, computer artwork. This Gram-positive rod-shaped bacteria causes the disease botulism, a type of food poisoning. The bacteria is found naturally in soil

Amoxicillin antibiotic drug molecule
Amoxicillin antibiotic drug, molecular model. This is a moderate-spectrum beta-lactam antibiotic. These drugs work by inhibiting the synthesis of bacterial cell walls

Linezolid antibiotic, molecular model
Linezolid antibiotic drug, molecular model. This new drug, marketed as Zyvoxid and Zyvox, is used to treat infections by bacteria, such as MRSA, that are resistant to other antibiotics

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Gram-positive bacteria are a diverse group of microorganisms that can be found in various environments. These fascinating organisms come in different shapes and sizes, as depicted in stunning artwork and scanning electron microscope (SEM) images. One captivating image shows a neutrophil engulfing MRSA, a type of gram-positive bacterium known for its resistance to antibiotics. This SEM image, labeled C018 / 8596, highlights the battle between the immune system and harmful bacteria. Another SEM image showcases tuberculosis bacteria, which belong to the Mycobacterium genus. These rod-shaped bacilli are responsible for causing one of humanity's oldest infectious diseases. Mycobacterium chelonae is another intriguing member of the gram-positive family. An SEM image reveals its unique structure and features (C014 / 0631), providing valuable insights into this bacterial species. In contrast to pathogenic bacteria, some gram-positive organisms have beneficial roles. Lactobacillus bacteria play an essential role in maintaining our gut health. A mesmerizing SEM image captures their intricate details up close. The Bacillus genus encompasses several gram-positive bacteria with distinct characteristics. Their varied shapes and arrangements make them visually striking under microscopic examination. Staphylococcus aureus is a well-known gram-positive bacterium notorious for causing infections in humans. Its spherical shape is beautifully captured in an SEM image labeled C017 / 7137, showcasing its surface features. When MRSA encounters neutrophils – our body's first line of defense against infection – intense battles occur within our bodies' microscopic realm. Another compelling SEM image (C018 / 8601) portrays this interaction between MRSA and a dead neutrophil. But not all interactions end tragically; some neutrophils successfully engulf MRSA to neutralize the threat they pose. The captivating SEM image C018 / 8597 illustrates this victorious moment when our immune system overpowers harmful pathogens like MRSA.