Pollen tube articles within Nature Communications

Featured

• Article
  16 May 2022 | Open Access

  POD1-SUN-CRT3 chaperone complex guards the ER sorting of LRR receptor kinases in Arabidopsis

  Cargo transport from the ER to the Golgi is highly selective. Here the authors identify three secretory pathway localized proteins that regulate ER sorting of receptor kinases in Arabidopsis and are required to support pollen tube growth.

  • Yong Xue
  • , Jiang-Guo Meng
  •  & Wei-Cai Yang

• Article
  01 April 2022 | Open Access

  ROS homeostasis mediated by MPK4 and SUMM2 determines synergid cell death

  Synergid cells undergo programmed cell death following pollen tube reception and successful fertilization. Here the authors show that premature synergid cell death is prevented by the mitogen activated protein kinase MPK4 and the R protein SUMM2 which maintain ROS homeostasis in Arabidopsis.

  • Ronny Völz
  • , William Harris
  •  & Yong-Hwan Lee

• Article
  22 April 2021 | Open Access

  Persistent directional growth capability in Arabidopsis thaliana pollen tubes after nuclear elimination from the apex

  Arabidopsis pollen contains a vegetative nucleus and two sperm cells that move to the apical region during pollen tube growth. Here, Motomura et al. make use of transgenic pollen with immobilized nuclei and show that, contrary to previous assumptions, movement of the vegetative nucleus is not needed for pollen tube guidance.

  • Kazuki Motomura
  • , Hidenori Takeuchi
  •  & Daisuke Maruyama

• Article
  14 May 2020 | Open Access

  Plasma membrane H⁺-ATPases sustain pollen tube growth and fertilization

  Cytosolic ion gradients in growing pollen tubes are thought to be required for polar growth. Here the authors show that the Arabidopsis plasma membrane H⁺ ATPases, AHA6, AHA8, and AHA9, maintain tip-to-shank proton gradients, oscillations in cytosolic pH and actin organization to enable pollen tube elongation.

  • Robert D. Hoffmann
  • , Maria Teresa Portes
  •  & Michael Palmgren

• 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
  06 November 2017 | Open Access

  Structural basis for receptor recognition of pollen tube attraction peptides

  The cysteine-rich peptides LUREs play an essential role in pollen tube attraction to the ovule for plant sexual reproduction. Here Zhang et al. show that PRK6 functions as a receptor of the LUREs in Arabidopsis thaliana and reveal the ligand recognition mechanism.

  • Xiaoxiao Zhang
  • , Weijia Liu
  •  & Jijie Chai