Antioxidant status of barley seedlings under conditions of excess manganese
| Autor: | Olga Simonova, Evgenija Tovstik, Maksim Simonov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Chlorophyll a Antioxidant medicine.medical_treatment chemistry.chemical_element Manganese Photosynthesis 01 natural sciences Superoxide dismutase chemistry.chemical_compound Pigment medicine GE1-350 Food science Carotenoid chemistry.chemical_classification biology fungi 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences 040201 dairy & animal science Environmental sciences chemistry visual_art Toxicity visual_art.visual_art_medium biology.protein 010606 plant biology & botany |
| Zdroj: | E3S Web of Conferences, Vol 254, p 01032 (2021) |
| ISSN: | 2267-1242 |
| Popis: | The system of protection against the effects of heavy metals (TM) can differ not only in different species of plants, but also in different varieties. Manganese (Mn), as a biogenic element, is necessary for normal plant growth and development. However, in the case of concentrations exceeding the optimal level, it negatively affects both linear plant growth and physiological processes. The paper presents data on the assessment of the effect of excess manganese (II) ions (30, 60 and 90 mg/l of active substance) on barley seedlings of different varieties. Resistance of plants to ionic toxicity of manganese (II) was judged by the value of antioxidant activity (AOA) of superoxide dismutase (SOD), the content of low-molecular antioxidants (chlorophyll a and b, carotenoids and anthocyanins) in barley leaves. For most of the varieties studied, an increase in AOA of SOD, the content of anthocyanins indicating the activation of plant protective mechanisms, was noted. The amount of green pigments, as well as carotenoids, on the contrary, decreased, compared with the control, which indicated a violation of the processes of photosynthesis in them. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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