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Silicon-induced alterations in the expression of aquaporins and antioxidant system activity in well-watered and drought-stressed oilseed rape
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SYSNO ASEP 0561271 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Silicon-induced alterations in the expression of aquaporins and antioxidant system activity in well-watered and drought-stressed oilseed rape Author(s) Saja-Garbarz, D. (PL)
Libik-Konieczny, M. (PL)
Fellner, Martin (UEB-Q) RID, ORCID
Jurczyk, B. (PL)
Janowiak, F. (PL)Number of authors 5 Source Title Plant Physiology and Biochemistry. - : Elsevier - ISSN 0981-9428
Roč. 174, MAR 1 (2022), s. 73-86Number of pages 14 s. Language eng - English Country FR - France Keywords Abiotic stress ; Aquaporins ; Oilseed rape ; Plasma membrane intrinsic proteins ; Tonoplast intrinsic proteins ; Water channels OECD category Plant sciences, botany Method of publishing Open access Institutional support UEB-Q - RVO:61389030 UT WOS 000778604400002 EID SCOPUS 85124197518 DOI 10.1016/j.plaphy.2022.01.033 Annotation Progressing climate change necessitates the search for solutions of plant protection against the effects of water deficit. One of these solutions could be silicon supplementation. The aim of the study was to verify the hypothesis that silicon changes aquaporin expression and antioxidant system activity in a direction which may alleviate the effects of drought stress in oilseed rape. The accumulation of BnPIP1, BnPIP2-1-7 and BnTIP1,1 aquaporins and the expression of their genes, the level of catalase, superoxide dismutase activities and hydrogen peroxide content as well as total non-enzymatic antioxidant activity were analyzed in leaf tissue from control and silicon-treated oilseed rape plants growing under well-watered and drought conditions. Silicon was applied in two forms – pure silicon and a silicon complex. It was shown that under drought conditions, both pure silicon and the silicon complex (with Fe) significantly increased the accumulation of aquaporins and improved the activity of enzymatic and non-enzymatic components of the antioxidant system, while under well-watered conditions, these effects were observed only in the case of the silicon complex. The presented study proves that silicon supplementation in oilseed rape improves the regulation of water management and contributes to the protection against oxidative stress caused by drought. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2023 Electronic address https://doi.org/10.1016/j.plaphy.2022.01.033
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