Hexavalent chromium is a serious and widespread environmental pollutant. Although many bacteria have been identified that can transform highly water-soluble and toxic Cr(VI) to insoluble and relatively non-toxic Cr(III), bacterial bioremediation of Cr(VI) pollution is limited by a number of issues, in particular chromium toxicity to the remediating cells. To address this we sought to develop an...

The present work is focused on the analysis of microstructure exoskeleton sea urchin Paracentrotus lividus and extraction design concepts by implementing geometrically described 3D Voronoi diagrams. Scanning electron microscopy (SEM) dried shells revealed a foam-like microstructure, also known as stereom. Subsequently, parametric, digital models were created with aid computer-aided (CAD) softwa...

Polyhydroxybutyrate (PHB) granules, also designated as carbonosomes, are supra-molecular complexes in prokaryotes consisting of a PHB polymer core and a surface layer of structural and functional proteins. The presence of suspected phospholipids in the surface layer is based on in vitro data of isolated PHB granules and is often shown in cartoons of the PHB granule structure in reviews on PHB m...

The (R)-3-hydroxyacyl-ACP-CoA transferase catalyses the conversion of (R)-3-hydroxyacyl-ACP to (R)-3-hydroxyacyl-CoA derivatives, which serves as the ultimate precursor for polyhydroxyalkanoate (PHA) polymerisation from unrelated substrates in pseudomonads. PhaG was found to be responsible for channelling precursors for polyhydroxyalkanoate (PHA) synthase from a de novo fatty acid biosynthesis ...

BACKGROUND Polyhydroxyalkanoates are linear biodegradable polyesters produced by bacteria as a carbon store and used to produce a range of bioplastics. Widespread polyhydroxyalkanoate production in C4 crops would decrease petroleum dependency by producing a renewable supply of biodegradable plastics along with residual biomass that could be converted into biofuels or energy. Increasing yields t...

Functional metagenomics using Pseudomonas putida expands the known diversity of 1 polyhydroxyalkanoate synthases and enables the production of novel polyhydroxyalkanoate 2 copolymers 3 4 14 15. CC-BY 4.0 International license peer-reviewed) is the author/funder. It is made available under a The copyright holder for this preprint (which was not. Abstract 17 Bacterially produced biodegradable pol...