Mechanical control of seed Morphogenesis

Abstract

Plant organ growth depends on mechanical interactions between cells and tissues. These interactions generate forces that influence cellular processes important for growth and differentiation. However, the extent to which mechanical signals, alongside biochemical factors, regulate plant organ morphogenesis remains poorly understood. In this talk, I will present recent work from my team using the Arabidopsis seed as a model system to illustrate how mechanical interactions between different tissues and tissue-specific responses to mechanical signals determine both the size and shape of plant organs.

References

Creff A., Ali O, Bied C., Bayle V, Ingram GC, Landrein B. (2023) Evidence that endosperm turgor pressure both promotes and restricts seed growth and size. Nature Communications. 14(1):67 https://doi.org/10.1038/s41467-022-35542-5

Bauer A., Bied C., Delattre A., Ingram G., Golz J.G., Landrein B (2024) Spatiotemporally distinct responses to mechanical forces shape the developing seed of Arabidopsis EmboJ. 43(13):2733-2758 https://doi.org/10.1038/s44318-024-00138-w

Landrein B, Ingram G. 2019. Connected through the force: mechanical signals in plant development. Journal of Experimental Botany. https://doi.org/10.1093/jxb/erz103