Fluorescent conjugated Phalloidin is a stain that allows for visualization of F-actin. In immunohistochemistry, primary antibodies and fluorescent conjugated secondary antibodies can be used to visualize subcellular localization and relative amounts of proteins of interest. Here is a protocol for Phalloidin and antibody staining of zebrafish embryos 5 days old and younger.
Figure 1. Deyolking tools. Deyolking tools can be used to surgically remove the yolk sac from fixed zebrafish embryos. Deyolking tools consist of insect pins (Fine Science Tools, catalog number: 26002-20) super glued into the ends of glass capillary tubes (Sutter Instruments, catalog number: BF100-50-10). The glass capillary tubes are then wrapped in lab tape.
Goody, M. F. and Henry, C. A. (2013). Phalloidin Staining and Immunohistochemistry of Zebrafish Embryos. Bio-protocol 3(11): e786. DOI: 10.21769/BioProtoc.786.