Reactive oxygen species and stress signaling in plants

• Main Authors: Yu. E. Kolupaev, Yu. V. Karpets
• Format: Article
• Language: English
• Published: National Academy of Sciences of Ukraine and Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine. 2014-08-01
• Series: Ukrainian Biochemical Journal
• Subjects: abiotic stressors; calcium; NADPH-­oxidase; nitric oxide; plant cells; reactive oxygen species; redox-signal sensors
• Online Access: http://ukrbiochemjournal.org/wp-content/uploads/2015/06/Kolupaev_4_14.pdf

Data on the basic processes and the compartments, involved in formation of reactive oxygen species (ROS) in plant cells, are generalised. The features of structure and regulation of NADPH-oxidase as the one of main enzymatic producers of ROS are characterized. The two-component histidine kinases, ROS-sensitive transcript-factors, ROS-sensitive protein kinase and redox-regulated ionic channels are discussed as the possible sensors of redox-signals in plant cells. The interaction between ROS and other signal mediators, in particular nitric oxide and calcium ions, is discussed. The ROS role as the signal mediators in the development of plant resistance to hyperthermia, osmotic shock and other abiotic stressors is analyzed.