Opis

• Title:
  Alleviation of nickel toxicity in wheat (Triticum aestivum L.) seedlings by selenium supplementation
• Creator:
  Gajewska, Ewa;
  Drobik, Daniel;
  Wielanek, Marzena;
  Sekulska-Nalewajko, Joanna;
  Gocławski, Jarosław;
  Mazur, Janusz;
  Skłodowska, Maria
• Contributor:
  Institute of Applied Computer Science, Łódź University of Technology, Stefanowskiego 18/22, 90-924 Łódź, Poland;
  Laboratory of Computer and Analytical Techniques, Faculty of Biology and Environmental Protection, University of Łódź, Banacha 12/16, 90-237 Łódź, Poland;
  Department of Plant Physiology and Biochemistry, Faculty of Biology and Environmental Protection, University of Łódź, Banacha 12/16, 90-237 Łódź, Poland
• Description:
  Hydroponically grown wheat seedlings were treated with 50 μM N i and/or 15 μM Se. After a 7-day culture period, their growth parameters, N i, Se, F e, and M g contents, electrolyte leakage, photosynthetic pigment concentrations, and photochemical activity of photosystem II were determined. Exposure of wheat seedlings to N i alone resulted in reduction in the total shoot and root lengths, by 22% and 50%, respectively. Addition of Se to the N i-containing medium significantly improved the growth of these organs, compared to the seedlings subjected to N i alone. Application of Se decreased the accumulation of N i in shoots and roots and partially alleviated the N i-induced decrease in F e and M g concentations in shoots. Electrolyte leakage increased in response to N i stress, but in shoots it was diminished by Se supplementation. Exposure to N i led to a decrease in chlorophyll a and b contents and enhancement of chlorophyll a/b ratio, but did not influence the concentration of carotenoids. Enrichment of the N i-containing medium with Se significantly increased chlorophyll b content, compared to the seedlings treated with N i alone. Photochemical activity, estimated in terms of the maximum quantum yield of photosystem II, decreased in response to N i treatment but was significantly improved by simultaneous addition of Se. Results of our study suggest that alleviation of N i toxicity in wheat seedlings by Se supplementation may be related to limitation of N i uptake.
• Object availability:
  Dostęp otwarty
• Rights:
  Attribution-NonCommercial-NoDerivatives 4.0 Międzynarodowe;
  http://creativecommons.org/licenses/by-nc-nd/4.0
• Date:
  2021.10.12;
  2014
• Type:
  Article
• Language:
  angielski
• Format:
  application/pdf
• Publisher:
  Sciendo, De Gruyter
• Relation:
  Biological Letters;50;
  2
• Subject:
  chlorophyll;
  electrolyte leakage;
  nickel stress;
  photochemical activity;
  selenium
• Identifier:
  Gajewska, Ewa, Drobik, Daniel, Wielanek, Marzena, Sekulska-Nalewajko, Joanna, Gocławski, Jarosław, Mazur, Janusz and Skłodowska, Maria. "Alleviation of nickel toxicity in wheat (Triticum aestivum L.) seedlings by selenium supplementation" Biological Letters, vol.50, no.2, 2014, pp.65-78. https://doi.org/10.2478/biolet-2013-0008;
  http://hdl.handle.net/11089/39363 ;
  1734-7467;
  10.2478/biolet-2013-0008
• Data provider:
  Repozytorium Uniwersytetu Łódzkiego
• Can I use it?:
  poproś o pozwolenie
• Type:
  obrazy