Focus collections Our focus collections gather our latest publications on a specific topic. Lignin- April 2023 Cold (May 2022) Grape (Mars 2022) Plant hydraulics – April 2020 Drought _March 2020 Solute transporters – preparation for the corresponding Special Issue – December 2019 H2S and NO signals integration – Mars 2019 Rice – November 2018 Salt stress – September 2018 Drought stress – August 2018