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Impact of palladium nanoparticles on plant and its fungal pathogen. A case study: Brassica napus-Plenodomus lingam
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SYSNO ASEP 0572045 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Impact of palladium nanoparticles on plant and its fungal pathogen. A case study: Brassica napus-Plenodomus lingam Author(s) Maryška, Lukáš (UEB-Q) ORCID
Jindřichová, Barbora (UEB-Q) RID, ORCID
Siegel, J. (CZ)
Záruba, K. (CZ)
Burketová, Lenka (UEB-Q) RID, ORCIDNumber of authors 5 Article number plad004 Source Title AoB PLANTS. - : Oxford University Press - ISSN 2041-2851
Roč. 15, č. 2 (2023)Number of pages 11 s. Language eng - English Country US - United States Keywords Brassica napus ; Leptosphaeria maculans ; nanoparticle ; Palladium ; plant defence ; Plenodomus lingam OECD category Plant sciences, botany R&D Projects EF16_019/0000738 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA17-10907S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UEB-Q - RVO:61389030 UT WOS 000956189300001 EID SCOPUS 85153369215 DOI 10.1093/aobpla/plad004 Annotation The technological exploitation of palladium or palladium nanoparticles (PdNPs) is increasing, and their wider usage relates to an unwanted release of pollutants into the environment, raising public health concerns about the infiltration of palladium into the consumption chain. This study focuses on the effect of spherical gold-cored PdNPs of 50 ± 10 nm diameter stabilized by sodium citrate on the interaction between an oilseed rape (Brassica napus) and the fungal pathogen Plenodomus lingam. Pretreatment of B. napus cotyledons with PdNPs suspension 24 h before but not 24 h after inoculation with P. lingam resulted in a decrease in the extent of disease symptoms, however, this effect was caused by Pd2+ ions (35 mg l-1 or 70 mg l-1). Tests to determine any direct antifungal activity on P. lingam in vitro demonstrated that the residual Pd2+ ions present in the PdNP suspension were responsible for the antifungal activity and that PdNPs themselves do not contribute to this effect. Brassica napus plants did not show any symptoms of palladium toxicity in any form. PdNPs/Pd2+ slightly increased the chlorophyll content and the transcription of pathogenesis-related gene 1 (PR1), indicating the activation of the plant defence system. We conclude that the only toxic effect of the PdNP suspension was on P. lingam via ions and that PdNPs/Pd2+ did not have any deleterious effect on the B. napus plants. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2024 Electronic address https://doi.org/10.1093/aobpla/plad004
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