1. Instituto de Astrobiología de Colombia, Bogotá, Colombia.
2. Department of Chemistry, Dakota State University, Madison, South Dakota, USA.
3. Department of Biology, Iowa State University, Ames, Iowa, USA.
4. NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA.
5. Department of Biology, Southern Oregon University, Ashland, Oregon, USA.