Pathogenic Collection (#10)

Cabbage root infection, SEM
Cabbage root infection. Coloured scanning electron micrograph (SEM) of a cross-section through one of the roots of a cabbage (Brassica sp)

Erwinia bacteria, SEM
Erwinia bacteria. Coloured scanning electron micrograph (SEM) of Erwinia carotovora bacteria. This gram-negative flagellated bacterium causes soft rot of plant crops such as potato

Grasshopper (Orthoptera sp. ) adult, killed by Pathogenic Fungus (Entomophthora sp)
Grasshopper (Orthoptera sp.) adult, killed by Pathogenic Fungus (Entomophthora sp.) infection, fungus causes grasshopper to climb stalk before dying so spores will spread further, Pyrenees, Ariege

Dance Fly (Empis tessellata) adult, fallen victim to Pathogenic Fungus (Entomophthora muscae) that enters brain and causes it to land, climb to the top of bush and die

Naegleria fowleri protozoa, TEM
Naegleria fowleri protozoan. Coloured transmission electron micrograph (TEM) of a section through a Naegleria fowleri protozoan

Parasitic protozoan, TEM
Parasitic protozoan. Coloured transmission electron micrograph (TEM) of a trypanosome protozoan (Trypanosoma sp.). The nucleus (centre), cell membrane (outline)

Enterocytozoon sp. parasites, TEM

Isospora sp. parasites, TEM
Isospora sp. parasites. Coloured transmission electron micrograph (TEM) of Isospora sp. parasites (yellow) in a sectioned cell

Naegleria fowleri protozoan, TEM
Naegleria fowleri protozoan. Coloured transmission electron micrograph (TEM) of a section through a Naegleria fowleri protozoan

Hartmannella amoeba and bacterium. Computer artwork of a Hartmannella vermiformis amoeba (green) engulfing a Legionella pneumophila bacterium (orange) with a pseudopodium

Nematode worms, SEM
Nematode worm. Scanning electron micrograph of a juvenile Heterorhabditis bacteriophora nematode worm (centre) shedding its cuticle (outer coat, centre right) as it develops into an adult

Lyme disease tick. Computer graphic illustration of the tick Ixodes ricinus, principal vector of Lyme disease in Europe. The head (above centre) contains a pair of palps

Mosquito feeding
Malaria mosquito. Illustration showing a mosquito on human skin, sucking blood. It has inserted its modified proboscis (red) into a superficial blood vessel

Phagocytosis of a yeast spore, SEM
Phagocytosis of a yeast spore. Coloured scanning electron micrograph (SEM) of a neutrophil (brown) phagocytosing (engulfing and destroying) a spore from the yeast Candida albicans (orange)

Phagocytosis of a fungus spore, SEM
Phagocytosis of a fungus spore. Coloured scanning electron micrograph (SEM) of a spore from the fungus Aspergillus fumigatus (red) being phagocytosed (engulfed and destroyed)

Nanorobots killing bacteria
Medical nanorobots. Computer artwork of nanorobots killing bacteria (red). These microscopic robots are a future technology that could be developed to help treat diseases

Parvovirus particles, TEM
Parvovirus particles. Coloured transmission electron micrograph (TEM) of virus particles (orange) clustered around a piece of cell membrane (purple, centre)

Adenovirus particles and bacterium, TEM
Adenovirus particles and bacterium. Coloured transmission electron micrograph (TEM) of adenovirus particles (green) with a gut bacterium (orange)

Avian flu virus, TEM
Avian flu. Coloured transmission electron micrograph (TEM) of influenza A virus particles (red). This is strain H5N1, which usually infects poultry, but began infecting humans in Hong Kong in 1997

Coxsackie virus particles, TEM
Coxsackie virus particles, coloured transmission electron micrograph (TEM). Coxsackie viruses were named after the town in the USA where they were isolated

AIDS virus particle, computer artwork
HIV particle, computer artwork. HIV (human immunodeficiency virus) causes AIDS (acquired immune deficiency syndrome). The outer layer of the virus particle is a membrane envelope (not seen)

Norwalk virus infection. Computer artwork of a norwalk virus and a human gut. The stomach is at top, the large intestine goes around the outside of the virus

Ducks and bird flu virus particles
Ducks and avian influenza virus particles, composite image. The virus particles (brown) have been imaged using a transmission electron microscope (TEM)

Respiratory syncytial virus, TEM
Respiratory syncytial virus (RSV) particles, coloured transmission electron micrograph (TEM). This pneumovirus, a type of paramyxovirus

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Pathogenic microorganisms are microscopic entities that pose a significant threat to human health. From budding yeast cells to avian flu viruses, these tiny organisms have the potential to cause widespread diseases and infections. In the world of pathogens, the avian flu virus stands out as one of the most notorious culprits. Its ability to jump from birds to humans has sparked global concerns about pandemics and led scientists on a quest for effective prevention strategies. Neutrophils, our body's first line of defense against infection, play a crucial role in engulfing harmful bacteria like MRSA (methicillin-resistant Staphylococcus aureus). This SEM image captures this incredible process, showcasing how neutrophils work tirelessly to protect us from pathogenic invaders. Salmonella bacteria are another well-known pathogen responsible for causing foodborne illnesses worldwide. This SEM image provides an up-close look at their unique structure and highlights their capacity for survival in various environments. The HIV particle is infamous for its devastating impact on the immune system. Understanding its intricate structure has been instrumental in developing antiretroviral therapies that help manage this deadly virus. Anthrax cultures depicted in historical diagrams remind us of past outbreaks and highlight the importance of ongoing research into preventing bioterrorism threats associated with this highly infectious disease. Norovirus particles captured through TEM imaging reveal their distinctive shape and shed light on why they are so contagious. Responsible for many cases of gastroenteritis, noroviruses can spread rapidly within communities if proper hygiene measures aren't followed diligently. Tuberculosis bacteria continue to be a major global health concern due to their ability to infect millions each year. Efforts towards improved diagnostics and treatment options remain critical in combating this persistent pathogen. E. coli bacteria serve as both harmless inhabitants of our gut flora but also dangerous pathogens when certain strains acquire virulence factors. This diverse bacterium reminds us that not all E. coli strains are created equal.