AtMYB44 suppresses transcription of the late embryogenesis abundant protein gene AtLEA4-5
作者: Nguyen Hoai NguyenChau Thi Thu NguyenChoonkyun JungJong-Joo Cheong
作者单位: 1Center for Food and Bioconvergence, Seoul National University, Seoul, 08826, Republic of Korea
2Department of International Agricultural Technology and Institutes of Green Bio Science and Technology, Seoul National University, Pyeongchang, 25354, Republic of Korea
刊名: Biochemical and Biophysical Research Communications, 2019, Vol.511 (4), pp.931-934
来源数据库: Elsevier Journal
DOI: 10.1016/j.bbrc.2019.03.006
关键词: ArabidopsisAtMYB44Histone acetylationAtLEA4-5Osmotic stress
英文摘要: Abstract(#br)AtLEA4-5 is a member of the group 4 late embryogenesis abundant (LEA) proteins, which are involved in the tolerance of water deficit in Arabidopsis thaliana . Chromatin immunoprecipitation assays revealed that the transcription factor AtMYB44 bound directly to the AtLEA4-5 gene promoter region under normal conditions, but was eliminated in response to osmotic stress (mannitol treatment). A quantitative reverse transcription PCR assay revealed that transcription of the AtLEA4-5 gene was induced in response to either salt (salinity) or mannitol (osmosis) treatment. The abiotic stress-induced increase in AtLEA4-5 transcripts was reduced in 35S:AtMYB44 transgenic plants, indicating that the transcription factor AtMYB44 represses gene transcription. More RNA polymerase II stalled...
全文获取路径: Elsevier  (合作)

  • abundant 丰富的
  • embryogenesis 胚发生
  • transcription 地名转写
  • protein 蛋白质