Plant polarity articles within Nature Communications

Featured

• Article
  04 November 2023 | Open Access

  Two subtypes of GTPase-activating proteins coordinate tip growth and cell size regulation in Physcomitrium patens

  Using the moss Physcomitrium patens, the authors reveal that PpRopGAPs and PpRenGAP redundantly regulate tip growth by inactivating ROP GTPases and influencing their membrane organization. They display distinct GAP activities and binding capacities to ROPs and oppositely regulate cell width when overexpressed.

  • Jingtong Ruan
  • , Linyu Lai
  •  & Peishan Yi

• Article
  01 September 2022 | Open Access

  WAVY GROWTH Arabidopsis E3 ubiquitin ligases affect apical PIN sorting decisions

  Directionality of auxin transport is determined by polar localization of PIN-FORMED (PIN) proteins. Here the authors show that Arabidopsis WAV3 E3 ubiquitin ligases contribute to PIN polarity by selectively antagonizing ectopic deposition of de novo synthesized PIN proteins following cell division.

  • Nataliia Konstantinova
  • , Lukas Hoermayer
  •  & Christian Luschnig

• Article
  11 January 2022 | Open Access

  Distinct mechanisms orchestrate the contra-polarity of IRK and KOIN, two LRR-receptor-kinases controlling root cell division

  Protein polarization coordinates many plant developmental processes. Here the authors show that IRK and KOIN, two LRR-receptor-kinases polarized to opposite sides of cells in the root meristem, rely on distinct mechanisms to achieve polarity.

  • Cecilia Rodriguez-Furlan
  • , Roya Campos
  •  & Jaimie M. Van Norman

• Article
  10 January 2022 | Open Access

  Connected function of PRAF/RLD and GNOM in membrane trafficking controls intrinsic cell polarity in plants

  The polarly localized BASL protein controls asymmetric cell division during stomatal lineage development in Arabidopsis. Here, the authors show that BASL polarization depends on PRAF/RLD proteins that interact with GNOM and suggest a role for endosomal trafficking in establishing polarity.

  • Lu Wang
  • , Dongmeng Li
  •  & Juan Dong

• Article
  22 July 2021 | Open Access

  A minus-end directed kinesin motor directs gravitropism in Physcomitrella patens

  Gravitropism is the process by which plants perceive and respond to gravity. Here the authors identify a minus-end-directed kinesin required for gravity-triggered actin filament rearrangement and negative gravitropic response in the moss Physcomitrella patens, thus linking a microtubule-based cellular motor to gravitropism via actin.

  • Yufan Li
  • , Zhaoguo Deng
  •  & Haodong Chen

• Article
  13 July 2021 | Open Access

  Sphingolipids mediate polar sorting of PIN2 through phosphoinositide consumption at the trans-Golgi network

  Lipid composition impacts the function of cellular membranes. Here the authors show that a reduction in sphingolipid acyl-chain length promotes phosphoinositide consumption by phospholipase C at the Arabidopsis trans-Golgi network which in turn regulates sorting of the auxin efflux carrier PIN2.

  • Yoko Ito
  • , Nicolas Esnay
  •  & Yohann Boutté

• Article
  06 August 2020 | Open Access

  Auxin-induced signaling protein nanoclustering contributes to cell polarity formation

  The significance of protein nanoclustering in cell polarization is unclear. Here Pan et al. show that auxin-induced TMK1/sterol nanoclustering as well as microtubule-based positive feedback regulation of the TMK1/sterol nanoclusters is critical for cell polarity formation in Arabidopsis.

  • Xue Pan
  • , Linjing Fang
  •  & Zhenbiao Yang

• Article
  03 January 2020 | Open Access

  Polar recruitment of RLD by LAZY1-like protein during gravity signaling in root branch angle control

  In Arabidopsis, LZY proteins are involved in specifying the angle of root growth relative to the direction of gravity. Here the authors identify RLD1, a LZY-interacting protein that is recruited to the plasma membrane in a polar manner and is required to establish asymmetric auxin transport and set root angles.

  • Masahiko Furutani
  • , Yoshinori Hirano
  •  & Miyo Terao Morita

• Article
  03 July 2018 | Open Access

  The REN4 rheostat dynamically coordinates the apical and lateral domains of Arabidopsis pollen tubes

  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
  •  & Zhenbiao Yang

• Article
  29 September 2016 | Open Access

  Enrichment of hydroxylated C24- and C26-acyl-chain sphingolipids mediates PIN2 apical sorting at trans-Golgi network subdomains

  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
  •  & Yohann Boutté