Wydawnictwo Uczelniane

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https://oa.zut.edu.pl/handle/20.500.12539/478

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Przeglądaj Wydawnictwo Uczelniane wg Temat "abiotic stress"

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    PozycjaOpen Access
    Alleviating Effects of Ascorbic Acid on Lead Toxicity in Goji (Lycium barbarum L.) in Vitro
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2018) Krupa-Małkiewicz, Marcelina; Kruczek, Arleta; Pelc, Justyna; Smolik, Beata; Ochmian, Ireneusz; Department of Plant Genetics, Breeding and Biotechnology, West Pomeranian University of Technology, Szczecin, Poland; Department of Horticulture, West Pomeranian University of Technology, Szczecin, Poland; Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin, Poland; Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin, Poland; Department of Horticulture, West Pomeranian University of Technology, Szczecin, Poland
    Lead (Pb) is the most common heavy metal pollutant in the environment. The objective of the presented study was to investigate the ameliorative effect of exogenous 1 mM ASA on key growth and biochemical parameters in Lycium barbarum seedlings under heavy metal (Pb(NO3)2) stress in vitro. Nodal cutting with an axillaries bud were used as an explants. The results showed that lead accumulation in goji explants had negative influence on morphological parameters of plant growth, such as shoot and root length. Lead caused a significant reduction in chlorophylls and carotenoid content, increased lipid peroxidation and induced significant accumulation of proline in goji leaves. Addition to MS medium 1 mM ASA greatly alleviated Pb-induced growth inhibition and Pb-induced MDA and proline accumulation. Presence of ASA in the MS medium under heavy metal stress increased plant fresh and dry mass with no significant effect on plant water content.
  • Miniatura
    PozycjaOpen Access
    Reakcja wybranych odmian żyta ozimego na stres wywołany różnymi czynnikami abiotycznymi
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2012) Smolik, Beata; Zakład Biochemii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
    The pot experiment was conducted in laboratory conditions. The soil used in experiment was loamy sand with 1.2% of organic carbon. To individual soil samples the following solutions were added 2.5 mM Pb(NO3)2 (207 mg Pb+2), 30 mM NaF (570.0 F– ), 0.05 mM H2SeO3 (3,95 Se4+), aqueous emulsion of Izoturon 500 SC herbicide in an amount of 6.5 mm3 · kg–1 soil. The aim of this study was to determine the influence of chosen pollutants on biometric parameters and SOD activity in three winter rye cultivars. Substances applied to the soil significantly reduced growth, fresh weight and superoxide dismutase activity in three winter rye cultivars planted in contaminated soil in comparison with control plants. Rye cultivars were characterized by different tolerance to chosen substances. It was found that cultivar ‘Chrobre’ was more sensitive to introduced pollutants than ‘Skat’ and ‘Dańkowskie Diamant’.