首页|TSPO-induced degradation of the ethylene receptor RhETR3 promotes salt tolerance in rose(Rosa hybrida)

TSPO-induced degradation of the ethylene receptor RhETR3 promotes salt tolerance in rose(Rosa hybrida)

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The gaseous plant hormone ethylene regulates plant development,growth,and responses to stress.In particular,ethylene affects tolerance to salinity;however,the underlying mechanisms of ethylene signaling and salt tolerance are not fully understood.Here,we demonstrate that salt stress induces the degradation of the ethylene receptor ETHYLENE RESPONSE 3(RhETR3)in rose(Rosa hybrid).Furthermore,the TspO/MBR(Tryptophan-rich sensory protein/mitochondrial benzodiazepine receptor)domain-containing membrane protein RhTSPO interacted with RhETR3 to promote its degradation in response to salt stress.Salt tolerance is enhanced in RhETR3-silenced rose plants but decreased in RhTSPO-silenced plants.The improved salt tolerance of RhETR3-silenced rose plants is partly due to the increased expression of ACC SYNTHASE1(ACS1)and ACS2,which results in an increase in ethylene production,leading to the activation of ETHYLENE RESPONSE FACTOR98(RhERF98)expression and,ultimately accelerating H2O2 scavenging under salinity conditions.Additionally,overexpression of RhETR3 increased the salt sensitivity of rose plants.Co-overexpression with RhTSPO alleviated this sensitivity.Together,our findings suggest that RhETR3 degradation is a key intersection hub for the ethylene signalling-mediated regulation of salt stress.

Qingcui Zhao、Weikun Jing、Xijia Fu、Ruoyun Yang、Chunyan Zhu、Jiaxin Zhao、Patrick Choisy、Tao Xu、Nan Ma、Liangjun Zhao、Junping Gao、Xiaofeng Zhou、Yonghong Li

展开 >

School of Food and Drug,Shenzhen Polytechnic,Shenzhen,518055,Guangdong,China

Postdoctoral Innovation Practice Base,Shenzhen Polytechnic,Shenzhen,518055,Guangdong,China

Flower Research Institute of Yunnan Academy of Agricultural Sciences,Kunming,650205,Yunnan,China

Department of Ornamental Horticulture,Beijing Key Laboratory of Development and Quality Control of Ornamental Crops,China Agricultural University,Beijing 100193,China

LVMH Recherche,F-45800 St Jean de Braye,France

展开 >

General Project of Shenzhen Science and Technology and Innovation CommissionGeneral Project of Shenzhen Science and Technology and Innovation Commission国家自然科学基金Jinning Flower Industry Science and Technology Service Group

6020330006K021K27036062032202530202204BI090022

2024

10.1093/hr/uhae040

园艺研究(英文)

园艺研究(英文)

CSTPCD
ISSN：
年,卷(期)：2024.11(4)
  • 1