To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 3 Filopodia and FN pillars in an AP4-mito-electroporated embryo. Lyn-mCherry (magenta) co-expressed with AP4-mito and FN-Alexa488 (green) in the somite-endoderm gap were taken in 6 minute intervals. Sm: somite, End: endoderm. See also Fig. 2A. Basal filopodia and vascular mechanical stress organize fibronectin into pillars bridging the mesoderm-endoderm gap Yuki Sato, Kei Nagatoshi, Ayumi Hamano, Yuko Imamura, David Huss, Seiichi Uchida, and Rusty Lansford Development 2017. 144:281-291; doi: 10.1242/dev.141259 Download Original Video