BIO152H5 Lecture Notes - Lecture 13: Penicillin, Aureus, Allele
Document Summary
Soapberry bugs use their beak to feed on seeds within fruits. Feeding is most effective when beak length is closely matched to seed depth within the fruit. Southern florida soapberry bugs feed on balloon vine with larger fruit; they have longer beaks. In central florida they feed on the introduced golden rain tree with smaller fruit; they have shorter beaks. Correlation between fruit size and beak size has also been observed in louisiana, oklahoma, and. The bacterium staphylococcus aureus is commonly found on people. One strain, methicillin-resistant s. aureus (mrsa), is a dangerous pathogen. S. aureus became resistant to penicillin in 1945, two years after it was first widely used. S. aureus became resistant to methicillin in 1961, two years after first widely used. Methicillin works by inhibiting a protein used by bacteria in their cell walls. Mrsa bacteria use a different protein in their cell walls.
