1. Max Planck Institute for Marine Microbiology; Bremen 28359 Germany
2. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Stechlin 16775 Germany
3. Technobiology GmbH; Rütiweidhalde 7a 6033 Buchrain Switzerland
4. Ruđer Bošković Institute; Zagreb Croatia
5. Institute for Biochemistry and Biology; Potsdam University; Potsdam 14469 Germany