Plant polarity

Plant polarity refers to the asymmetric distribution of cellular components along a particular axis within a cell, and is essential for processes such as intercellular communication, cell division, cell morphogenesis and differentiation. Polarised cells are involved in the patterning of plant tissues and organs, and therefore contribute to the overall shape of the plant.

Latest Research and Reviews

  • Research |

    It is unknown how plant cell polarities are connected to organismal axes. A SOSEKI protein is found to integrate apical–basal and radial organismal axes to localize to polar cell edges independent of tissue context, but requiring cell wall integrity.

    • Saiko Yoshida
    • , Alja van der Schuren
    • , Maritza van Dop
    • , Luc van Galen
    • , Shunsuke Saiga
    • , Milad Adibi
    • , Barbara Möller
    • , Colette A. ten Hove
    • , Peter Marhavy
    • , Richard Smith
    • , Jiri Friml
    •  & Dolf Weijers
    Nature Plants 5, 160-166
  • Research | | open

    Polar growth of pollen tubes is established by polar localization of ROP1 GTPase activity at the apical tip. Here, Li et al. identify REN4 as a ROP1 interaction partner that restrains the ROP1 distribution to the apex by promoting ROP1 endocytosis from lateral domains of the pollen tube membrane.

    • Hui Li
    • , Nan Luo
    • , Weidong Wang
    • , Zengyu Liu
    • , Jisheng Chen
    • , Liangtao Zhao
    • , Li Tan
    • , Chunyan Wang
    • , Yuan Qin
    • , Chao Li
    • , Tongda Xu
    •  & Zhenbiao Yang
  • Research |

    Polarity establishment during the first zygote asymmetrical division is explored in the brown algae Dictyota. Through transcriptomics and cytological observations, the authors uncover a novel polarization process based on two steps that are controlled by different cues.

    • Kenny A. Bogaert
    • , Tom Beeckman
    •  & Olivier De Clerck
    Nature Plants 3, 16221
  • Research | | open

    Sphingolipids in the trans-Golgi network have been implicated in polar trafficking. Here Wattelet-Boyer et al. show that hydroxylated C24- and C26-acyl-chain sphingolipids are enriched in trans-Golgi network subdomains that are critical for polar sorting of the PIN2 auxin carrier in plant cells.

    • Valérie Wattelet-Boyer
    • , Lysiane Brocard
    • , Kristoffer Jonsson
    • , Nicolas Esnay
    • , Jérôme Joubès
    • , Frédéric Domergue
    • , Sébastien Mongrand
    • , Natasha Raikhel
    • , Rishikesh P. Bhalerao
    • , Patrick Moreau
    •  & Yohann Boutté

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