Related Experiment Video
Updated: Aug 13, 2026

Methionine Functionalized Biocompatible Block Copolymers for Targeted Plasmid DNA Delivery
Published on: August 6, 2019
D-(-)-poly-beta-hydroxybutyrate in membranes of genetically competent bacteria
Abstract:
D-(-)-Poly-beta-hydroxybutyrate is a constituent of the membranes and the cytoplasms of genetically competent Azotobacter vinelandii, Bacillus subtilis, and Haemophilus influenzae cells. Within each species the concentration of D-(-)-poly-beta-hydroxybutyrate in the membranes and cytoplasm correlates with transformability. Fluorescence analysis of the thermotropic lipid phase transitions in A. vinelandii and B. subtilis cells indicates that D-(-)-poly-beta-hydroxybutyrate forms an organized gel structure in the membranes which is very labile. The concentration of organized D-(-)-poly-beta-hydroxybutyrate in the membranes, which can be estimated from the intensity of its phase transition, can be used to assess the competence of a culture.
More Related Videos
13:16Characterization of Membrane Transporters by Heterologous Expression in E. coli and Production of Membrane Vesicles
Published on: December 31, 2019
13:53Homogeneous Glycoconjugate Produced by Combined Unnatural Amino Acid Incorporation and Click-Chemistry for Vaccine Purposes
Published on: December 19, 2020
Related Concept Videos
Genomic DNA in Prokaryotes
Genomic Diversity in Bacteria
Although bacterial genomes are much...
Biosynthesis of Lipids
Bacterial Phylum Proteobacteria