Gram Positive Cocci of Medical Importance
Gram positive cocci by arrangement, clusters, chains, pairs, and tetrads, covering Staphylococcus, Streptococcus, Enterococcus, and Micrococcus with key identification tests
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Bacterial Classification
These posts are related with various approaches used for the classification of Bacteria.
Classification of Bacteria
Classification of bacteria — by cell wall, gram staining, shape, oxygen requirements, temperature, pH, salt, flagella, spore formation, capsule, and nutritional type. Complete guid...
Nutritional Types of Bacteria
Why nearly every human pathogen falls into just one category on this classification, the discovery that revealed bacteria could "eat" rocks instead of food, and what it actually ex...
pH Requirements of Microorganisms
Why stomach acid stops most pathogens but not all, and how acidophiles, neutrophiles, and alkaliphiles keep their internal pH neutral no matter what's outside.
Psychrophiles, Mesophiles, Thermophiles
Psychrophiles, mesophiles, thermophiles and hyperthermophiles — temperature ranges, survival strategies, examples, and clinical relevance for diagnostic microbiology incubation. Co...
Gram-Negative Cocci and Coccobacilli of Medical Significance: List, Diseases, and Lab Identification
The medically important Gram-negative cocci include Neisseria gonorrhoeae (gonorrhoea, ophthalmia neonatorum), N. meningitidis (meningitis), and Moraxella catarrhalis (otitis media...
Cultivation of Aerobic and Anaerobic Bacteria: Methods, Principles, and Equipment
A complete guide to cultivating aerobic and anaerobic bacteria — oxygen requirements, pre-reduced media, anaerobic jars (GasPak, McIntosh-Fildes), candle jar, anaerobic chambers, a...