Relationship between manganese toxicity and waterlogging tolerance in Zea mays L. cv. Saracura
| Autor: | Isabel Rodrigues-Brandão, Kamila Rezende Dázio de Souza, Dayane Meireles da Silva, Nathalia dos Santos da Fonte, Ian Teodoro Libeck, José Donizeti Alves |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
021110 strategic defence & security studies Reactive oxygen species Antioxidant medicine.medical_treatment 0211 other engineering and technologies food and beverages chemistry.chemical_element 02 engineering and technology Manganese Metabolism 010501 environmental sciences Biology medicine.disease_cause 01 natural sciences Lipid peroxidation chemistry.chemical_compound chemistry Agronomy Chlorophyll Toxicity medicine Agronomy and Crop Science Oxidative stress 0105 earth and related environmental sciences |
| Zdroj: | Acta Scientiarum. Agronomy. 39:75 |
| ISSN: | 1807-8621 1679-9275 |
| DOI: | 10.4025/actasciagron.v39i1.30997 |
| Popis: | The objective of this study was to evaluate the relationship between excess manganese and waterlogging tolerance in 18 th selection cycle Zea mays L. cv. Saracura plants. Maize plants were transferred to plastic receptacles containing solutions with different concentrations of manganese. Leaves and roots were evaluated at the beginning of treatment and after 7, 14, and 21 days for chlorophyll content, biomass production and antioxidant metabolism. Mn was strongly translocated from the roots to the leaves, triggering a decrease in chlorophyll content. Excess Mn promoted an increase in reactive oxygen species that was accompanied by higher levels of antioxidative enzyme activity and lipid peroxidation. Zea mays L. cv. Saracura efficiently sequestered relatively large amounts of Mn in the leaves, with a significant impact on metabolism; however, we did not observe visual symptoms or a large decrease in biomass production. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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