Cryo-electron tomography of native Drosophila tissues vitrified by plunge freezing

Authors

Baeuerlein FJB, Pastor-Pareja JC, Fernandez-Busnadiego R

Journal

bioRxiv

Citation

bioRxiv 2021.04.14.437159.

Abstract

Cryo-focused ion beam (cryo-FIB) milling allows thinning vitrified cells for high resolution imaging by cryo-electron tomography (cryo-ET). However, it remains challenging to apply this workflow to tissues, as they usually require high-pressure freezing for vitrification. Here we show that dissected Drosophila tissues can be directly vitrified by plunge freezing upon a short incubation in 10% glycerol. This expedites subsequent cryo-FIB/ET, enabling systematic analyses of the molecular architecture of native tissues.

DOI

10.1101/2021.04.14.437159