<b>Relationship between manganese toxicity and waterlogging tolerance in <i>Zea mays</i> L. cv. Saracura

  • Dayane Meireles da Silva Universidade Federal de Lavras
  • Nathalia dos Santos da Fonte Universidade Federal de Lavras
  • Kamila Rezende Dázio de Souza Universidade Federal de Lavras
  • Isabel Rodrigues-Brandão Universidade Federal de Lavras
  • Ian Teodoro Libeck Universidade Federal de Lavras
  • Jose Donizeti Alves Universidade Federal de Lavras

Resumo

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.

 

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Publicado
2017-01-01
Como Citar
Silva, D. M. da, Fonte, N. dos S. da, Souza, K. R. D. de, Rodrigues-Brandão, I., Libeck, I. T., & Alves, J. D. (2017). <b>Relationship between manganese toxicity and waterlogging tolerance in <i>Zea mays</i&gt; L. cv. Saracura. Acta Scientiarum. Agronomy, 39(1), 75-82. https://doi.org/10.4025/actasciagron.v39i1.30997
Seção
Produção Vegetal

 

2.0
2019CiteScore
 
 
60th percentile
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2.0
2019CiteScore
 
 
60th percentile
Powered by  Scopus