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 & Views |

    Regulation of organ growth involves multiple pathways that coordinate cell number and size in a process that is highly dependent on nutrient supply and energy levels. The simplicity of the Arabidopsis root tip provides a suitable model for the genetic dissection of plant organ growth regulation.

    • José-Manuel Pérez-Pérez
    Nature Plants 8, 729-730
  • News & Views |

    Auxin is a master hormone that affects most aspects of plant development. Its inactivation is a key process in regulating auxin levels, but it is only now that we are starting to properly understand the steps involved.

    • John J. Ross
    •  & Ariane Gélinas-Marion
    Nature Plants 7, 1546-1547
  • News & Views |

    The levels of plant hormones are broadly determined by their relative rates of biosynthesis and degradation, but a degradation pathway for strigolactones has been missing. Now an enzyme has been discovered that can break down strigolactones and thereby influence plant development.

    • Jazmine L. Humphreys
    •  & Steven M. Smith
    Nature Plants 7, 1443-1444