AUTHOR=Smith Jayson J. , Kenny Isabel W. , Wolff Carsten , Cray Rachel , Kumar Abhishek , Sherwood David R. , Matus David Q. TITLE=A light sheet fluorescence microscopy protocol for Caenorhabditis elegans larvae and adults JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=10 YEAR=2022 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2022.1012820 DOI=10.3389/fcell.2022.1012820 ISSN=2296-634X ABSTRACT=

Light sheet fluorescence microscopy (LSFM) has become a method of choice for live imaging because of its fast acquisition and reduced photobleaching and phototoxicity. Despite the strengths and growing availability of LSFM systems, no generalized LSFM mounting protocol has been adapted for live imaging of post-embryonic stages of C. elegans. A major challenge has been to develop methods to limit animal movement using a mounting media that matches the refractive index of the optical system. Here, we describe a simple mounting and immobilization protocol using a refractive-index matched UV-curable hydrogel within fluorinated ethylene propylene (FEP) tubes for efficient and reliable imaging of larval and adult C. elegans stages.