New pathway of diatom-mediated calcification and its impact on the biological pump
by Science China Press, phys.org, September 25, 2023
„Researchers have discovered that during the growth process of Skeletonema costatum, there is a significant decrease in total alkalinity (TA) and [Ca2+] in the bulk medium. The precipitated white particles were confirmed to be aragonite crystals through X-ray diffraction. Scanning electron microscope images revealed that the diatom cells were enveloped by spherical crystals with diameters ranging from 40 to 70 μm, forming aggregates of S. costatum and aragonite.“