, Volume 56, Issue 3, pp 811–819 | Cite as

Effects of salt stress on low molecular antioxidants and redox state of plastoquinone and P700 in Arabidopsis thaliana (glycophyte) and Eutrema salsugineum (halophyte)

  • M. Wiciarz
  • E. NiewiadomskaEmail author
  • J. Kruk
Open Access


The effects of NaCl treatment were analysed in two species of considerably different resistance. In glycophyte, the content of ascorbate decreased but lipophilic antioxidants (α-tocopherol, plastochromanol, and hydroxy-plastochromanol) increased due to 150 mM NaCl. In halophyte, 300 mM NaCl caused a significant increase in hydrophilic antioxidants (ascorbate, total glutathione) but not in the lipophilic antioxidants. The redox states of plastoquinone (PQ) and P700 were also differently modulated by salinity in both species, as illustrated by an increased oxidation of these components in glycophyte. The presented data suggest that E. salsugineum was able to avoid a harmful singlet oxygen production at PSII, which might be, at least in part, attributed to the induction of the ascorbate-glutathione cycle. Another important cue of a high salinity resistance of this species might be the ability to sustain a highly reduced states of PQ pool and P700 under stress, which however, drastically affect the NADPH yield.

Additional key words

chloroplast oxidative stress photosystems salinity 



nonphotochemical quenching




photosynthetic electron transport




reactive oxygen species




the quantum efficiency of PSI


donor-side limitation to PSI


acceptor-side limitation to PSI

Supplementary material

11099_2017_733_MOESM1_ESM.pdf (117 kb)
Supplementary material, approximately 117 KB.


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Copyright information

© The Author(s) 2017

Authors and Affiliations

  1. 1.Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakówPoland
  2. 2.The Franciszek Górski Institute of Plant PhysiologyPolish Academy of SciencesKrakówPoland

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