Agronomy Science, przyrodniczy lublin, czasopisma up, czasopisma uniwersytet przyrodniczy lublin
Plants throughout their lives are constantly exposed to the abiotic stress. One of these factors is the pollution of the environment with fluorine compounds. Fluoride is a highly toxic element and has not yet been shown to have a positive effect on plants. The aim of this study was to assess if some biologically active substances (vitamin C, glutathione, vitamin PP, vitamin E, salicylic acid) applied to medium may enhance plant tolerance to oxidative stress induced with 10 mM NaF. To evaluate this, various morphological (root length, seedling length, fresh weight), biochemical (MDA, proline) and physiological characteristics (total chlorophyll, carotenoids) of 10-day-old spring wheat seedlings var. Bryza were measured. Addition of NaF to the substrate had an inhibitory effect on growth and fresh weight of plants and increased biochemical parameters as an indicator of oxidative stress. Of the substances used ascorbic acid (vitamin C), α-tocopherol (vitamin E) and salicylic acid most mitigated the toxic effects of fluoride on wheat seedlings.
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