To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Folic acid permits apical constriction in Shroom3R1838C positive cells. Shroom3R1838C-mcherry positive MDCK cell treated with exogenous folic acid. Each frame represents 10minutes. Note that exogenous folic acid was added at the movie's onset. Folic acid modifies the shape of epithelial cells during morphogenesis via a Folr1 and MLCK dependent mechanism Jessica B. Martin, Maria Muccioli, Kenneth Herman, Richard H. Finnell, and Timothy F. Plageman Biology Open 2019. 8:None-None; doi: 10.1242/bio.041160 Download Original Video