首页|The apple C2H2-type zinc finger transcription factor MdZAT10 positively regulates JA-induced leaf senescence by interacting with MdBT2
The apple C2H2-type zinc finger transcription factor MdZAT10 positively regulates JA-induced leaf senescence by interacting with MdBT2
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
维普
Jasmonic acid(JA)plays an important role in regulating leaf senescence.However,the molecular mechanisms of leaf senescence in apple(Malus domestica)remain elusive.In this study,we found that MdZAT10,a C2H2-type zinc finger transcription factor(TF)in apple,markedly accelerates leaf senescence and increases the expression of senescence-related genes.To explore how MdZAT10 promotes leaf senescence,we carried out liquid chromatography/mass spectrometry screening.We found that MdABI5 physically interacts with MdZAT10.MdABI5,an important positive regulator of leaf senescence,significantly accelerated leaf senescence in apple.MdZAT10 was found to enhance the transcriptional activity of MdABI5 for MdNYC1 and MdNYE1,thus accelerating leaf senescence.In addition,we found that MdZAT10 expression was induced by methyl jasmonate(MeJA),which accelerated JA-induced leaf senescence.We also found that the JA-responsive protein MdBT2 directly interacts with MdZAT10 and reduces its protein stability through ubiquitination and degradation,thereby delaying MdZAT10-mediated leaf senescence.Taken together,our results provide new insight into the mechanisms by which MdZAT10 positively regulates JA-induced leaf senescence in apple.
Kuo Yang、Jian-Ping An、Chong-Yang Li、Xue-Na Shen、Ya-Jing Liu、Da-Ru Wang、Xing-Long Ji、Yu-Jin Hao、Chun-Xiang You
展开 >
NationalKey Laboratory of Crop Biology,Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production,College of Horticulture Science and Engineering,Shandong Agricultural University,Tai-An,Shandong 271018,China
National Key Laboratory of Crop Biology,College of Life Science,Shandong Agricultural University,Tai-An,Shandong 271018,China
This research was supported by the National Natural Science Foundation of ChinaShandong Natural Science Major Basic Research Foundation
NETL
NSTL
万方数据
维普
