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.
-Both the long-term and short-term effects of the oil spill have been studied. Immediate effects included the deaths of 100,000 to as many as 250,000 seabirds, at least 2,800 sea otters, approximately 12 river otters, 300 harbor seals, 247 bald eagles, and 22 orca whales, and an unknown number of salmon and herring.