Figure 3
From: Exploring the microbial biotransformation of extraterrestrial material on nanometer scale
Elemental ultrastructural analysis of M. sedula empty envelopes encrusted during growth on NWA 1172 and corresponding Fe L2,3-edge core electron energy loss (EEL) spectra. The high angular annular dark field (HAADF) scanning transmission electron microscopy (STEM) image of a heavily encrusted cell remnants of M. sedula used for the EDS spectrum image acquisition and corresponding carbon (C), copper (Cu), phosphorus (P), iron (Fe) oxygen (O), nickel (Ni), sulfur (S), and nitrogen (N) elemental maps. Corresponding Fe L2,3-edge core electron energy loss (EEL) spectra acquired from the S-layer of M. sedula cells depicted in Supplementary Fig. 8a (shown as dotted line) and from the crust in Supplementary Fig. 8c (shown as solid line) are provided at the bottom panel.
