Cytokinin functions as an asymmetric and anti-gravitropic signal in lateral roots

Lateral roots emerge from the primary root at right angles but briefly grow asymmetrically to set a distinct growth angle. Here Waidmann et al. show that cytokinin acts as an anti-gravitropic signal that impairs growth on the upper side of emerged lateral roots to promote radial expansion of the roo...

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Auteurs principaux: Sascha Waidmann, Michel Ruiz Rosquete, Maria Schöller, Elizabeth Sarkel, Heike Lindner, Therese LaRue, Ivan Petřík, Kai Dünser, Shanice Martopawiro, Rashmi Sasidharan, Ondrej Novak, Krzysztof Wabnik, José R. Dinneny, Jürgen Kleine-Vehn
Format: article
Langue:EN
Publié: Nature Portfolio 2019
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Accès en ligne:https://doaj.org/article/bd81cc069ae74ff69ffb6bbce9eaa03d
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Résumé:Lateral roots emerge from the primary root at right angles but briefly grow asymmetrically to set a distinct growth angle. Here Waidmann et al. show that cytokinin acts as an anti-gravitropic signal that impairs growth on the upper side of emerged lateral roots to promote radial expansion of the root system.