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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual de Maringá
2017
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| Online Access: | https://www.redalyc.org/articulo.oa?id=303049607010 https://www.redalyc.org/journal/3030/303049607010/ https://www.redalyc.org/journal/3030/303049607010/html/ https://www.redalyc.org/journal/3030/303049607010/303049607010.epub https://www.redalyc.org/journal/3030/303049607010/movil |
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Table of Contents:
- Relationship between manganese toxicity and waterlogging tolerance in Zea mays L. cv. Saracura Dayane Meireles da Silva Nathália dos Santos da Fonte Kamila Rezende Dázio de Souza Isabel Rodrigues-Brandão Ian Teodoro Libeck José Donizeti Alves Agrociencias Hypoxia chlorophyll oxidative stress The objective of this study was to evaluate the relationship between excess manganese and waterlogging tolerance in 18th 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. 2017 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303049607010 https://www.redalyc.org/journal/3030/303049607010/ https://www.redalyc.org/journal/3030/303049607010/html/ https://www.redalyc.org/journal/3030/303049607010/303049607010.epub https://www.redalyc.org/journal/3030/303049607010/movil en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.1 Vol.39