2 articles published in JoVE
In Situ Measurement and Correlation of Cell Density and Light Emission of Bioluminescent Bacteria Eveline Brodl1, Johannes Niederhauser1, Peter Macheroux1 1Institute of Biochemistry, Graz University of Technology Bioluminescent bacteria regulate light production through a variety of mechanisms, such as quorum sensing. This novel method allows the in situ investigation of bioluminescence and the correlation of light emission to cell density. An artificial bioluminescent Escherichia coli system allows the characterization of lux operons, Lux proteins, and their interplay.
Microwave Assisted Rapid Diagnosis of Plant Virus Diseases by Transmission Electron Microscopy Bernd Zechmann1,2, Gerhard Graggaber1, Günther Zellnig1 1Institute of Plant Sciences, University of Graz, 2Institute for Electron Microscopy and Fine Structure Research, Graz University of Technology This study describes a method that allows the rapid and clear diagnosis of plant virus diseases in about half a day by using a combination of microwave assisted plant sample preparation for transmission electron microscopy and negative staining methods.