Yuan W.Li Y.Li L.WEI SIAOZhang Q.Zhang Y.Liu J.Xu W.Miao R.2024-09-182024-09-182018-08-03https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052084739&doi=10.1080%2f15592324.2018.1486147&partnerID=40&md5=455c9a40e36c92b5d8949150e265b9e8https://scholars.lib.ntu.edu.tw/handle/123456789/721258Article Number: e1486147Arabidopsis roots sense the moisture gradient in soils and grow toward an area with higher water potential–a process called hydrotropism. Our previous study has shown that the apoplastic proton extrusion in root tips is influenced by brassinosteroids (BRs) receptor BR-INSENSITIVE1 (BRI1) and is crucial for hydrotropic response in Arabidopsis. Here we show that BRI1 interacts directly not only with Arabidopsis plasma membrane H+-ATPase 2 (AHA2) but also with Arabidopsis plasma membrane H+-ATPase 7 (AHA7). Therefore, BRI1 may affect hydrotropic response via regulating the activities of AHA2 and AHA7. © 2018, © 2018 Taylor & Francis Group, LLC.Arabidopsis rootBR-INSENSITIVE1hydrotropic responseplasma membrane H⁺-ATPaseproton effluxjournal article10.1080/15592324.2018.14861472-s2.0-85052084739