Affiliation: | 1. Department of Biology , Baltimore , MD , 21218 , USA;2. Department of Biology , Baltimore , MD , 21218 , USA;3. Department of Chemical Engineering , The Johns Hopkins University , Baltimore , MD , 21218 , USA;4. Department of Chemical Engineering , The Johns Hopkins University , Baltimore , MD , 21218 , USA;5. Center of Marine Biotechnology , University of Maryland , Baltimore , MD , 21202 , USA |