You have all seen in last week’s lab how Staphylococcus aureus produces the characteristic golden yellow pigment that gave this species its name (aureus: web definitions). Have you wondered why the pathogenic staphylococci produce this pigment unlike other species that are not professional pathogens and whose colonies have different colors?
As a matter of fact, scientists working in the field of microbial pathogenesis have also been curious about this golden pigment, and it was very recently that they reached some plausible answers.
Golden pigment-producing staphylococci (left) cause mouse skin lesion unlike non-golden colonies (right).
Try to find out how this golden pigment can help staphylococci overcome the human defenses- Make a guess before you find the answer in literature. The answer is not in textbooks yet! You have to find it by searching scientific literature: check, for example, PUBMED, or… how about Google Scholar?
The answer will be posted in this weblog next
week month. You can always click on the “comments” link below these lines and post whatever you found. All you need is to put your email address, which will be kept private. I prefer that you put your name and serial number as well- but it is not a condition.
- What do you know about pigments in general from your pharmacognosy classes?
- What do you know about golden pigments in general? In food products?