Wheat affected by wheat leaf rust
Rust-susceptible and resistant wheat
Sunflower rust resistance
Healthy and diseased lettuce plants
Wheat leaf infected with rust fungus
Pear tree infected with spot fungus
US Senator visiting plant disease lab
Infected and normal soya beans
Grass infected with choke disease fungus
Madurella grisea fungal infection, light micrograph
Cicada infected with fungus
Red palm weevil biological control research
Entomopathogenic fungus infecting fly
Ant infected by parasitic fungus
Rust fungus
Fungus on leaf, SEM
Bean leaf infected with rust fungus
Gonorrhoea bacteria, SEM
Neutrophil engulfing bacteria, SEM
Orientia tsutsugamushi infection, TEM
Chronic granulomatous granule, light micrograph
Madurella mycetomatis fungal infection, light micrograph
Pneumocystis jirovecii fungus in lung tissue, light micrograph
Yersinia pestis bacteria, SEM
Slime mould on rose
Infected dead grasshopper
Panama disease pathogen on banana root, SEM
Panama disease pathogen in banana leaf, SEM
Panama disease pathogen on banana leaf, SEM
Apple scab fungus infection
Rust fungus spores SEM
Pseudomonas aeruginosa bacteria, SEM
Staphylococcus aureus bacteria, SEM
Soil bacteria, SEM
Tuberculosis bacteria, TEM
Streptococcus pyogenes bacteria, TEM
Streptococcus pyogenes, SEM
E. coli bacteria, SEM
Corn borer damage to corn
European corn borer
Diseased grapefruit tree, Florida, USA
Fireblight
Candidiasis albicans fungus, light micrograph
Mycoplasma infection, SEM
Avian influenza research
Ebola virus particles, TEM
Bovine ephemeral fever virus, TEM
Ebola virus particle, SEM
E. coli bacterium, TEM
Mould on leaf, SEM
Palm seeds infected with pestalotia
Staphylococcus aureus bacteria
Fungi on sphagnum moss, micrograph
Rose spot fungus spores, light micrograph
Clostridium difficile bacteria, TEM
Female mosquitoes being used in arbovirus research
Herpes virus, TEM
Hepatitis C viruses, TEM
Tomato plant pest control research
Springtail infected by a virus
Springtails
Live and dead springtails
Strawberry crop disease research
Candida albicans fungus in liver tissue, light micrograph
Chronic inflammatory granuloma, light micrograph
Diseased bananas
Fungal spores on a lemon grass leaf, SEM
Tomato russet mite damage
Grain weevil
Banana leaf infested with mealybugs
Mealybugs
Rust fungus, SEM
Herpes virus, SEM
Fungal spore germination, SEM
Chlamydia bacteria in a lung cell, TEM
Streptococcus pyogenes bound to a neutrophil, SEM
Campylobacter jejuni bacteria, SEM
Salmonella typhimurium bacteria, SEM
Baculovirus infection, TEM
La Crosse virus particles, TEM
MERS coronavirus particle, TEM
MERS coronavirus particles, TEM
Stenotrophomonas sp. bacteria, TEM
Bacillus bacteria, SEM
Proteus sp. bacteria, SEM
E. coli H157:07 bacteria
Streptococcus sp. bacteria, SEM
Streptococcus pneumoniae bacteria
Candida albicans fungus, SEM
Candida fungus reproducing, artwork
Trichophyton fungus
Tuberculosis bacteria
Tuberculosis bacteria, SEM
Diseased Portuguese laurel leaf
Penicillium fungus, light micrograph
Mushroom gill, micrograph
Mushroom spores, light micrograph
Ascomycete spores, light micrograph
Fungal spores
Septoria leaf blotch infection, SEM
Pseudomonas aeruginosa bacterial culture
MRSA bacteria, SEM
Staphylococcus epidermidis bacteria, TEM
Clostridium difficile bacteria, SEM