Plant cell biology

Plant cell biology is the study of all aspects of plant cells. It is particularly concerned with structure, growth, division, signalling, differentiation and death of plant cells.

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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
  • Reviews | | open

    Biological circadian rhythms maintain a period close to 24 h in coordination with the Earth’s fixed rotational period. Here Webb et al. discuss how external cues continuously adjust phase and period, viewing the oscillator as a dynamically-adjusted plastic system rather than tightly-coupled cogs in a mechanical clock.

    • Alex A. R. Webb
    • , Motohide Seki
    • , Akiko Satake
    •  & Camila Caldana
  • Research | | open

    Cell wall pits allow movement of water between xylem vessels and are formed via Rho-GTPase mediated signaling that leads to local microtubule disassembly. Here, Sugiyama et al. show that an additional Rho-GTPase pathway controls cell wall deposition and actin dynamics to form pit boundaries.

    • Yuki Sugiyama
    • , Yoshinobu Nagashima
    • , Mayumi Wakazaki
    • , Mayuko Sato
    • , Kiminori Toyooka
    • , Hiroo Fukuda
    •  & Yoshihisa Oda
  • Research |

    Autophagy controls protein homeostasis. AUTOPHAGY-RELATED PROTEIN 8 and ABNORMAL SHOOT3 interact to promote endosome trafficking, as well as to regulate protein degradation during senescence independently from the canonical autophagy machinery.

    • Min Jia
    • , Xiayan Liu
    • , Hui Xue
    • , Yue Wu
    • , Lin Shi
    • , Rui Wang
    • , Yu Chen
    • , Ni Xu
    • , Jun Zhao
    • , Jingxia Shao
    • , Yafei Qi
    • , Lijun An
    • , Jen Sheen
    •  & Fei Yu
    Nature Plants 5, 212-224
  • Research | | open

    The interactions of lignin with polysaccharides in plant secondary cell walls are not well understood. Here the authors employ solid-state NMR measurements to analyse intact stems of maize, Arabidopsis, switchgrass and rice and observe that lignin self-aggregates and forms highly hydrophobic microdomains that make extensive surface contacts to xylan.

    • Xue Kang
    • , Alex Kirui
    • , Malitha C. Dickwella Widanage
    • , Frederic Mentink-Vigier
    • , Daniel J. Cosgrove
    •  & Tuo Wang

News and Comment

  • News and Views |

    Detailed electron microscopy and tomography analyses reveal a previously unappreciated complexity of extracellular membranes at the host–microbe interface during arbuscular mycorrhizal symbiosis.

    • Erik Limpens
    Nature Plants 5, 131-132
  • News and Views |

    Curcumin, an aromatic diarylheptanoid, is a principal component of turmeric (Curcuma longa), commonly used in Asian cooking, giving curry its orange colour. Introducing two enzymes into Arabidopsis thaliana caused incorporation of curcumin into its lignin polymer, enhancing sugar release from the cell wall and turning it yellow.

    • Gerald A. Tuskan
    Nature Plants 5, 128
  • News and Views |

    A new protein degradation pathway driven by late-endosome-localized MULTIDRUG AND TOXIC COMPOUND EXTRUSION (MATE) efflux transporters opposes autophagy at the onset of senescence. Paradoxically, the new pathway requires a central component of autophagy.

    • Ulrike Zentgraf
    Nature Plants 5, 129-130
  • News and Views |

    Cellular components can be digested in the vacuole by autophagy, a critical process for homeostasis and stress tolerance. Functions of this recycling pathway in maize have now been defined, including lipid degradation, control of secondary metabolism and remodelling of the proteome.

    • Diane C. Bassham
    Nature Plants 4, 985-986
  • News and Views |

    Plants synthesize a diversity of cell walls to fit the needs of different cell types and phases of development. A group of transcription factors has now been identified that governs formation of one type of primary cell wall.

    • Daniel J. Cosgrove
    Nature Plants 4, 748-749