Limnology and Oceanography
Hydrogen sulfide can exist in oxic waters in the form of a dissolved gas, dissociated ions, dissolved metal sulfide complexes, and particulate metal sulfides. The sum of the dissolved species is termed total dissolved sulfide (TDS). In addition to the hydrolysis of carbonyl sulfide, it has been speculated that phytoplankton may produce TDS. We present results from preliminary culture studies which demonstrate that phytoplankton produce TDS and particulate acid-volatile sulfide (pAVS). The phylogenetic order of TDS + pAVS production (per unit cell volume) for the oceanic species examined is Synechococcus sp. > Emiliania huxleyi ≈ Pyramimonas obovata > Thalassiosira oceanica. Moreover, TDS and pAVS production increases when the concentrations of uncomplexed trace metals in culture media are also increased, suggesting metal detoxification via the formation of metal sulfide complexes.
Original Publication Citation
Walsh, R.S., Cutter, G.A., Dunstan, W.M., Radford‐Knoery, J., & Elder, J.T. (1994). The biogeochemistry of hydrogen sulfide: Phytoplankton production in the surface ocean. Limnology and oceanography, 39(4), 941-948. doi: 10.4319/lo.1994.39.4.0941
Walsh, Russell S.; Cutter, Gregory A.; Dunstan, William M.; Radford-Knoery, Joel; and Elder, Jennifer T., "The Biogeochemistry of Hydrogen Sulfide: Phytoplankton Production in the Surface Ocean" (1994). OEAS Faculty Publications. 48.