A5042398122- Calcium Carbonate Crystallization and Inhibition
- Algal biology and biofuel production
- Biocrusts and Microbial Ecology
- Titanium Alloys Microstructure and Properties
- Bone Tissue Engineering Materials
- Marine and coastal ecosystems
- Diatoms and Algae Research
- Paleontology and Stratigraphy of Fossils
- Marine Biology and Ecology Research
Weizmann Institute of Science
2023-2025
Organic crystals, and in particular guanine are widely used by multicellular organisms for manipulating light producing structural colors. Many single celled eukaryotic also produce organic is the most abundant type produced. Their functions thought to be related fact that nitrogen rich. Here we studied a freshwater unicellular alga, Phacotus lenticularis , found when growth medium depleted phosphorus, alga stops reproducing produces intracellular birefringent particles inside vesicles....
Spherical particles with diameters within the wavelength of visible light, known as spherulites, manipulate light uniquely due to their spatial organization and structural birefringence. Most crystalline spherulites are branched, composed metals, alloys, semi-crystalline polymers. Recently, a different spherulite architecture is discovered in vision systems decapod crustaceans - core-shell highly birefringent (
Phacotus lenticularis is a freshwater unicellular green alga that forms lens-shaped calcitic shells around the cell. We documented P. biomineralization pathways in live daughter cells while still within reproductive complex, using scanning confocal microscopy and after vitrification cryo-scanning electron (cryo-SEM). show some or all of calcium ions required for mineral formation enter cell thorough endocytosis, as inferred from uptake calcein fluorescent dye. Ions first concentrate inside...