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Brassinosteroids application induces phosphatidic acid production and modify antioxidant enzymes activity in tobacco in calcium-dependent manner.

Authors
  • Kretynin, Serhiy V1
  • Kolesnikov, Yaroslav S1
  • Derevyanchuk, Michael V1
  • Kalachova, Tetiana A2
  • Blume, Yaroslav B3
  • Khripach, Vladimir A4
  • Kravets, Volodymyr S5
  • 1 Department of the Molecular Mechanisms of Cell Metabolism Regulation, V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, The National Academy of Sciences of Ukraine, 02660, Murmanska str. 1, Kyiv, Ukraine. , (Ukraine)
  • 2 Department of the Molecular Mechanisms of Cell Metabolism Regulation, V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, The National Academy of Sciences of Ukraine, 02660, Murmanska str. 1, Kyiv, Ukraine; Laboratory of Pathological Plant Physiology, Institute of Experimental Botany AS CR, Rozvojová 263, 165 02 Prague 6 - Lysolaje, Czech Republic. , (Czechia)
  • 3 Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, 04123, Osypovskogo 2a, Kyiv, Ukraine. , (Ukraine)
  • 4 Laboratory of Steroid Chemistry, Institute of Bioorganic Chemistry, The National Academy of Sciences of Belarus, 220141, Kuprevich str., 5, Minsk, Belarus. , (Belarus)
  • 5 Department of the Molecular Mechanisms of Cell Metabolism Regulation, V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, The National Academy of Sciences of Ukraine, 02660, Murmanska str. 1, Kyiv, Ukraine. Electronic address: [email protected] , (Ukraine)
Type
Published Article
Journal
Steroids
Publication Date
Apr 01, 2021
Volume
168
Pages
108444–108444
Identifiers
DOI: 10.1016/j.steroids.2019.108444
PMID: 31295460
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Brassinosteroids (BRs) are steroid hormones regulating various aspects of plant metabolism, including growth, development and stress responses. However, little is known about the mechanism of their impact on antioxidant systems and phospholipid turnover. Using tobacco plants overexpressing H+/Ca2+vacuolar Arabidopsis antiporter CAX1, we showed the role of Ca2+ ion balance in the reactive oxygen species production and rapid phosphatidic acid accumulation induced by exogenous BR. Combination of our experimental results with public transcriptomic and proteomic data revealed a particular role of Ca2+-dependent phospholipid metabolizing enzymes in BR signaling. Here we provide novel insights into the role of calcium balance and lipid-derived second messengers in plant responses to exogenous BRs and propose a complex model integrating BR-mediated metabolic changes with phospholipid turnover. Copyright © 2019 Elsevier Inc. All rights reserved.

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