文献类型：期刊文献

英文题名：WUSCHEL-related homeobox gene PagWOX11/12a is involved in drought tolerance through modulating reactive oxygen species scavenging in poplar

作者：Liu, Rui[1] Wang, Rui[2] Lu, Meng-Zhu[1,3] Wang, Liu-Qiang[1,3]

通信作者：Wang, LQ[1]

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Key Lab Tree Breeding & Cultivat, State Forestry Adm,Res Inst Forestry, Beijing 100091, Peoples R China;[2]Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin, Peoples R China;[3]Nanjing Forestry Univ, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing, Peoples R China

年份：2021

卷号：16

期号：3

外文期刊名：PLANT SIGNALING & BEHAVIOR

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000603803300001)】；

基金：This work was supported by grants from the Central Non-profit Research Institution of CAF (No. CAFYBB2018QB002) and National Natural Science Foundation of China (No. 31600539 and 31971620).

语种：英文

外文关键词：Drought tolerance; Pagwox11/12a; poplar; root development; ROS

摘要：WUSCHEL-related homeobox (WOX) transcription factors play essential roles in key developmental processes and in response to different abiotic stresses. In a recent study, we have refined a molecular regulation mechanism that drought-induced PagERF35 directly activates the expression of PagWOX11/12a thus to promote root elongation and biomass, especially under drought conditions, and resulting in enhanced drought tolerance in poplar. In this study, we further found that PagWOX11/12a overexpression significantly enhanced drought tolerance and improved survival rate. Interestingly, transgenic poplars overexpressing PagWOX11/12a exhibited higher ability in scavenging reactive oxygen species (ROS) under drought stress. Combined with these and previous findings, we proposed the mechanism that PagWOX11/12a could not only promote root elongation and biomass growth to increase drought tolerance but also improve plant drought tolerance by regulating ROS level through possibly modulating the expression of ROS scavenging related genes.