ETR1 Integrates Response to Ethylene and Cytokinins into a Single Multistep Phosphorelay Pathway to Control Root Growth.

@article{drsk2019ETR1IR,
  title={ETR1 Integrates Response to Ethylene and Cytokinins into a Single Multistep Phosphorelay Pathway to Control Root Growth.},
  author={Mark{\'e}ta Žd'{\'a}rsk{\'a} and Abigail Rubiato Cuyacot and Paul T. Tarr and Amel Yamoune and Agnieszka Szmitkowska and Vendula Hrdinov{\'a} and Zuzana Gelov{\'a} and Elliot M. Meyerowitz and Jan Hejatko},
  journal={Molecular plant},
  year={2019}
}
Cytokinins and ethylene control plant development via sensors from the histidine kinase (HK) family. However, downstream signaling pathways for the key phytohormones are distinct. Here we report not only cytokinin but also ethylene is able to control root apical meristem (RAM) size through activation of the multistep phosphorelay (MSP) pathway. We find both cytokinin and ethylene-dependent RAM shortening requires ethylene binding to ETR1 and its HK activity. The receiver domain of ETR1… CONTINUE READING