The effect of calcium on the antioxidant enzymes from salt-treated loquat and anger plants

Functional Plant Biology : FPB
Jose A HernándezManuel F García-Legaz

Abstract

Salt treatment (50 mM NaCl) reduced plant growth of loquat (Eribotria japonica Lindl.) (by up to 40%) but not that of anger (Cydonia oblonga Mill.). Salt stress induced a strong leaf Na+ accumulation in both species. However, the observed increase in leaf Cl- level was higher in loquat (13-fold) than in anger plants (3.8-fold). Addition of Ca2+ (25 mM) significantly reduced Na+ and Cl- concentrations in both salt-treated species. In anger leaves, calcium addition to the nutrient media did not change the leaf calcium contents in salt-treated or untreated plants, this value being lower in salt-treated plants. However, in loquat plants, an increase in leaf Ca2+ was observed after the calcium addition. Surprisingly, an increase in Ca2+ concentration was also observed in salt-treated loquat plants. In general, anger plants had higher constitutive antioxidant enzyme levels in both control and salt-treated plants. Salt stress did not change antioxidant enzyme levels in loquat plants. A similar effect was observed in anger plants, but in this case a 2-fold induction of monodehydroascorbate reductase (MDHAR) activity was observed.In both species, salinity produced an oxidative stress, indicated by an increase in lipid peroxidation, this...Continue Reading

Citations

Jun 21, 2020·Plant, Cell & Environment·Zhenzhen RenLixia Ku
Jan 18, 2017·Environmental Science and Pollution Research International·Mojtaba KordrostamiHassan Hassani Kumleh
Oct 7, 2011·Plant Biology·G Barba-EspínP Díaz-Vivancos
Sep 8, 2017·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Mojtaba KordrostamiHassan Hassani Kumleh
Jan 5, 2014·The Journal of Microbiology·Ramalingam RadhakrishnanIn-Jung Lee
Jan 17, 2020·Antioxidants·Grisaly GarcíaJosé Antonio Hernández
Feb 22, 2021·Journal of Biotechnology·Ulkar İbrahimovaMarian Brestic
Mar 8, 2021·Plant Physiology and Biochemistry : PPB·Wenqiang WangQunqun Hao
Oct 10, 2007·Comptes rendus biologies·Cheruth Abdul JaleelRajaram Panneerselvam
Nov 13, 2007·Colloids and Surfaces. B, Biointerfaces·C Abdul JaleelR Panneerselvam

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