Sarah Courbier (@scourbier.bsky.social)

New paper: Gibberellins are long-distance regulators of shoot-to-root signalling of the light environment Our latest paper ( published online in Plant Cell, shows that Gibberellins are involved in long-distance signalling of phytochrome-sensed light signals all the way in to the roots that are not light-exposed but still respond to light quality changes. We think that not only the precursor GA12, but also bioactive GA4 is shoot-to-root mobile. The work was led by former postdoc… http://plantphotobiology.com/2025/08/28/new-paper-gibberellins-are-long-distance-regulators-of-shoot-to-root-signalling-of-the-light-environment/