A deep-sea hydrothermal vent worm detoxifies arsenic and sulfur by intracellular biomineralization of orpiment (As2S3)
Fig 5
STEM-EDS mapping and micro-Raman spectrometry analysis of the yellow granules.
A: Bright-field STEM image of yellow granules in the fine tip of branchial apparatus; A’: A close up image of the STEM-EDS mapping scanning area; B–E: EDS mapping of Oxygen, Sulphur, Osmium, and Arsenic elements of the yellow granules; F: Merged image of Oxygen and Osmium EDS mapping; G: Merged image of Sulphur and Arsenic EDS-mapping; H: Optical image of branchial apparatus yellow granules for micro-Raman analysis; I: Raman spectra of yellow granules; Redcross in H micro-Raman spectrometry sampling point; Inset in I: Raman spectra from pure As2S3. The data underlying Fig 5I can be found in S2 Data.