Plant hormones

Plant hormones, also known as phytohormones, are chemicals that regulate plant cell processes. They are signal molecules produced within the plant functioning in extremely low concentrations.

Latest Research and Reviews

News and Comment

  • News and Views |

    In autogamous plants, self-pollination is ensured by a timely opening of anthers (dehiscence) and release of mature pollen grains. Auxin plays a paramount role in controlling the correct timing of anther dehiscence. Now, a molecular switch that allows the timely change in auxin level in rice anthers has been unveiled.

    • Maura Cardarelli
    •  & Paolo Costantino
    Nature Plants 4, 408-409
  • News and Views |

    The canonical auxin receptor complex mediates gene expression, but it is also necessary for responses far too rapid to be mediated by transcription. An innovative setup that uses advanced microscopy and microfluidics can record auxin-induced changes within 30 seconds during root growth.

    • Katarzyna Retzer
    • , Gaurav Singh
    •  & Richard M. Napier
    Nature Plants 4, 410-411
  • News and Views |

    Plants cannot escape from their enemies so they must rely on innate defences to fight off pests and pathogens. Salicylic acid (SA) is a plant hormone that regulates immunity. A new model for perception of the SA signal has been proposed, and could be of paramount importance in developing effective crop protection strategies.

    • Kemal Kazan
    Nature Plants 4, 327-328
  • News and Views |

    Auxin-induced callus formation, known as a type of cell reprogramming, involves several transcription factors that act in lateral root initiation for plant development. Now, a new partnership of transcription factors is identified to reveal the regulatory network of auxin-induced cell reprogramming.

    • Munetaka Sugiyama
    Nature Plants 4, 69-70