Listeriosis, listeria: symptoms, diagnosis and treatment
MRSA bacteria. Coloured scanning electron micrograph (SEM) of methicillin-resistant Staphylococcus aureus (MRSA, red) on the microscopic fibres of a wound dressing. MRSA is a gram-positive, round (coccus) bacterium that is resistant to many commonly prescribed antibiotics. It is carried by around 30 per cent of the population without causing any symptoms. However, in vulnerable people, such as those that have recently had surgery, it can cause wound infections, pneumonia and blood poisoning…
Nereis sandersi, deep sea worm living in hydrothermal vent
Differences in the constituents, which compose the various agar media, are used as determinants as to which bacteria are fostered on each culture plate. Thriving culture colonies on one type of medium may not thrive on another type of medium based on the agars’ ingredients, which a given bacterium will require to maintain life.