Photo1 (IMAGE) Helmholtz Centre for Environmental Research - UFZ Caption These are fungal hypha and germinated cells of the bacterium Bacillus subtilis reveal the uptake of the stable isotope 15N (orange/red), with which the nitrogen-containing nutrients were labelled. The non-germinated spores (white rings) show no enrichment. This image was taken with the NanoSIMS, a secondary ion mass spectrometry system. Credit UFZ Usage Restrictions None License Licensed content 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.