Symbiont-driven sulfur crystal formation in a thiotrophic symbiosis from deep-sea hydrocarbon seeps.
Bottom Line: This suggests that their formation is either extra- or intracellular in symbionts.We propose that formation of these crystals provides both energy-storage compounds for the symbionts and serves the symbiosis by removing excess toxic sulfide from host tissues.This symbiont-mediated sulfide detoxification may have been crucial for the establishment of thiotrophic symbiosis and continues to remain an important function of the symbionts.
Affiliation: Department of Limnology and Oceanography, Faculty of Life Sciences, University of Vienna, Althanstr. 14, 1090, Vienna, Austria.Show MeSH
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Mentions: EDX elemental analyses of isolated needle-shaped and orthorhombic crystals sputter coated with carbon confirmed the crystals were sulfur (Fig.â€‰4). Raman microspectroscopic analysis of isolated and dried crystals with a spectral resolution of about 1.5â€‰cmâˆ’1 (Eichinger etÂ al., 2011) indicated that that both crystal types were composed of rhombic S8 sulfur (Fig.â€‰5).
Affiliation: Department of Limnology and Oceanography, Faculty of Life Sciences, University of Vienna, Althanstr. 14, 1090, Vienna, Austria.