The fluorescent in vivo fmo-2/FMO5 transcriptional reporter showed faint GFP expression, mostly in the anterior intestine and head of noninfected animals.
Larval and adult worms transgenic for fmo-2::LacZ displayed discrete nuclear expression of beta-Gal in the majority of intestinal cells with additional expression in the head area in the region of the excretory gland.
fmo-4::gf pwas expressed strongly in hypodermal cells, excluding the seam cells and vulval cells, consistent with previous studies. We also observed fmo-4::gfp expression in cells in the ventral nerve cord.
Larval and adult worms transgenic for fmo-4::LacZ exhibited marked uniform beta-Gal expression in the nuclei of cells of the hypodermis. Hypodermal beta-Gal expression was far more pronounced for fmo-4 than other fmos.
Larval and adult worms transgenic for fmo-1::LacZ displayed discrete nuclear expression of beta-Gal in the majority of intestinal cells with additional expression in the head area in the region of the excretory gland.