FIB section of amorphous calcium carbonate in green algae

Bio-Geo interaction

FIB section of amorphous calcium carbonate in green algae
Image: Dr. Kilian Pollok

The interplay between the living and non-living nature has an influence on the constitution of waters and rivers, the mobility of harmful substances and on the fate of life. The catalytic effect of microorganisms to the mineral formation raises more and more awareness.

Selected publications

Martignier, A., Filella, M., Pollok, K., Melkonian, M., Bensimon, M., Barja, F., Langenhorst, F., Jaquet, J. M., & Ariztegui, D. (2018). Marine and freshwater micropearls: biomineralization producing strontium-rich amorphous calcium carbonate inclusions is widespread in the genus Tetraselmis (Chlorophyta). Biogeosciences, 15(21), 6591-6605. https://doi.org/10.5194/bg-15-6591-2018External link

Bizo, M. L., Nietzsche, S., Mansfeld, U., Langenhorst, F., Majzlan, J., Gottlicher, J., Ozunu, A., Formann, S., Krause, K., & Kothe, E. (2017). Response to lead pollution: mycorrhizal Pinus sylvestris forms the biomineral pyromorphite in roots and needles. Environmental Science and Pollution Research, 24(16), 14455-14462. https://doi.org/10.1007/s11356-017-9020-7External link

Gualtieri, A. F., Gandolfi, N. B., Pollastri, S., Burghammer, M., Tibaldi, E., Belpoggi, F., Pollok, K., Langenhorst, F., Vigliaturo, R., & Drazic, G. (2017). New insights into the toxicity of mineral fibres: A combined in situ synchrotron mu-XRD and HR-TEM study of chrysotile, crocidolite, and erionite fibres found in the tissues of Sprague-Dawley rats. Toxicology Letters, 274, 20-30. https://doi.org/10.1016/j.toxlet.2017.04.004External link

Martignier, A., Pacton, M., Filella, M., Jaquet, J. M., Barja, F., Pollok, K., Langenhorst, F., Lavigne, S., Guagliardo, P., Kilburn, M. R., Thomas, C., Martini, R., & Ariztegui, D. (2017). Intracellular amorphous carbonates uncover a new biomineralization process in eukaryotes. Geobiology, 15(2), 240-253. https://doi.org/10.1111/gbi.12213External link

Meier, A., Kastner, A., Harries, D., Wierzbicka-Wieczorek, M., Majzlan, J., Buchel, G., & Kothe, E. (2017). Calcium carbonates: induced biomineralization with controlled macromorphology. Biogeosciences, 14(21), 4867-4878. https://doi.org/10.5194/bg-14-4867-2017External link

Gualtieri, A. F., Gandolfi, N. B., Pollastri, S., Pollok, K., & Langenhorst, F. (2016). Where is iron in erionite? A multidisciplinary study on fibrous erionite-Na from Jersey (Nevada, USA). Scientific Reports, 6, 37981. https://doi.org/10.1038/srep37981External link