Mupirocin (pseudomonic acid A, or Bactroban or Centany) is an antibiotic originally isolated from Pseudomonas fluorescens. It is used topically, and is primarily effective against Gram-positive bacteria. Mupirocin is bacteriostatic at low concentrations and bactericidal at high concentrations. Mupirocin has a unique mechanism of action, which is selective binding to bacterial isoleucyl-tRNA synthetase, which halts the incorporation of isoleucine into bacterial proteins. Because this mechanism of action is not shared with any other antibiotic, mupirocin has few problems of antibiotic cross-resistance.
An affect of oil spills on penguins is that their feathers will  lose its way to insulate the body, resulting in hypothermia. The  birds may even swallow the oil when trying â¦ to clean their feathers  that could lead to poisoning.1 person found this useful.irds are effected by oil spills as well as fish, and the oil travels up the food chain. Krill and other food eaten by fish, or further down the food chain are also affected. Generally their populations are lowered, creating food shortages for fish.
Here are a few ways that oil spills affect penguins according to a conservation fact sheet on zoopenguins.org, âWhen the birds are coated with oil, they try and clean their feathers and end up ingesting the oil.hat you can do: If an oil spill happens near you, get involved with the clean up. Connect with organizations like International Bird Rescue that are dedicated to the rehabilitation of birds after oil spills.