Gravimorphogenesis: gravity-regulated formation of the peg in cucumber seedlings

@article{Takahashi1997GravimorphogenesisGF,
  title={Gravimorphogenesis: gravity-regulated formation of the peg in cucumber seedlings},
  author={Hideyuki Takahashi},
  journal={Planta},
  year={1997},
  volume={203},
  pages={S164-S169}
}
Formation and/or positioning of a protuberance, or peg, in cucumber (Cucumis sativus L.) seedlings is controlled by gravity. The gravisensing apparatus for this gravimorphogenesis is possibly shared with that of gravitropism. Sheath cells in the transition zone between stem and root contain sedimentable amyloplasts, but amyloplasts in cortical cells (peg cells) do not sediment uniformly. These putative statoliths appear before peg initiation becomes visible on the lower side of the transition… CONTINUE READING