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Discovery of endogenous nitroxyl as a new redox player in Arabidopsis thaliana.
Arasimowicz-Jelonek, M; Floryszak-Wieczorek, J; Suarez, S; Doctorovich, F; Sobieszczuk-Nowicka, E; Bruce King, S; Milczarek, G; Rebis, T; Gajewska, J; Jagodzik, P; Zywicki, M.
Affiliation
  • Arasimowicz-Jelonek M; Department of Plant Ecophysiology, Adam Mickiewicz University, Poznan, Poland. magdalena.arasimowicz@amu.edu.pl.
  • Floryszak-Wieczorek J; Department of Plant Physiology, Poznan University of Life Sciences, Poznan, Poland.
  • Suarez S; Department of Plant Ecophysiology, Adam Mickiewicz University, Poznan, Poland.
  • Doctorovich F; Departamento de Química Inorgánica, Analítica, y Química Física, Universidad de Buenos Aires, INQUIMAE-CONICET, Buenos Aires, Argentina.
  • Sobieszczuk-Nowicka E; Departamento de Química Inorgánica, Analítica, y Química Física, Universidad de Buenos Aires, INQUIMAE-CONICET, Buenos Aires, Argentina.
  • Bruce King S; Department of Plant Physiology, Adam Mickiewicz University, Poznan, Poland.
  • Milczarek G; Department of Chemistry, Wake Forest University, Winston-Salem, NC, USA.
  • Rebis T; Poznan University of Technology, Institute of Chemistry and Technical Electrochemistry, Poznan, Poland.
  • Gajewska J; Poznan University of Technology, Institute of Chemistry and Technical Electrochemistry, Poznan, Poland.
  • Jagodzik P; Department of Plant Ecophysiology, Adam Mickiewicz University, Poznan, Poland.
  • Zywicki M; Department of Plant Ecophysiology, Adam Mickiewicz University, Poznan, Poland.
Nat Plants ; 9(1): 36-44, 2023 01.
Article in En | MEDLINE | ID: mdl-36564632
ABSTRACT
Nitroxyl (HNO) is the one-electron reduced and protonated congener of nitric oxide (•NO), owning a distinct chemical profile. Based on real-time detection, we demonstrate that HNO is endogenously formed in Arabidopsis. Senescence and hypoxia induce shifts in the redox balance, triggering HNO decay or formation mediated by non-enzymatic •NO/HNO interconversion with cellular reductants. The stimuli-dependent HNO generation supports or competes with •NO signalling, depending on the local redox environment.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Arabidopsis Language: En Journal: Nat Plants Year: 2023 Type: Article Affiliation country: Poland
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PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Arabidopsis Language: En Journal: Nat Plants Year: 2023 Type: Article Affiliation country: Poland