%0 Journal Article %T Disproval of the Starch-Amyloplast Hypothesis? %J - %D 2019 %R https://doi.org/10.1016/j.tplants.2019.02.008 %X In a recent publication, Edelmann ( Protoplasma 2018; 255,1877¨C1881) refuted the well-established starch-amyloplast hypothesis of gravitropism in plants. Gravitropic curvatures of shoots and roots were still present after amyloplast-containing tissues (in sheath of vascular bundles and root caps) were dissected. Here, we discuss Edelmann¡¯s data in the light of Popper¡¯s falsification principle %U https://www.cell.com/trends/plant-science/fulltext/S1360-1385(19)30050-0