TardiVec system (IMAGE) National Institutes of Natural Sciences Caption TardiVec is based on a DNA vector with promoters derived from the anhydrobiotic tardigrades. It is introduced into a tardigrade by a microinjection and the GFP fluorescence is observed after approximately 48 hours. The tardigrade expresses GFP in its muscle cells (the right panel). Credit PNAS, Sae Tanaka and Kazuharu Arakawa Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.