Discovery of endogenous nitroxyl as a new redox player in Arabidopsis thaliana
Type
Journal article
Language
English
Date issued
2023
Author
Arasimowicz-Jelonek, M.
Suarez, S.
Doctorovich, F.
Sobieszczuk-Nowicka, E.
Bruce King, S.
Milczarek, G.
Rębiś, T.
Gajewska, J.
Jagodzik, P.
Żywicki, M.
Faculty
Wydział Rolnictwa, Ogrodnictwa i Biotechnologii
Journal
Nature Plants
ISSN
2055-026X
Volume
9
Number
1
Pages from-to
36-44
Abstract (EN)
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.
License
CC-BY - Attribution
CC-BY - Attribution Open access date
December 23, 2022