Brazilian Genetic Diversity for Desirable and Undesirable Elements in the Wheat Grain

Autor(es):Mostrar menos -

Maltzahn, Latoia Eduarda ^[1] ; Zenker, Stefania Garcia ^[1] ; Lopes, Jennifer Luz ^[1] ; Pereira, Rodrigo Mendes ^[2] ; Verdi, Cezar Augusto ^[1] ; Rother, Vianei ^[1] ; Busanello, Carlos ^[1] ; Viana, Vivian Ebeling ^[1] ; Batista, Bruno Lemos ^[2] ; de Oliveira, Antonio Costa ^[1] ; Pegoraro, Camila ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Pelotas, Fac Agron Eliseu Maciel, Dept Fitotecnia, Campus Capao do Leao, BR-96010610 Pelotas, RS - Brazil

^[2] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Campus Santo Andre, BR-09210580 Santo Andre, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: BIOLOGICAL TRACE ELEMENT RESEARCH; v. 199, n. 6 AUG 2020.
• Citações Web of Science: 1

Resumo

Micronutrient deficiency affects billions of people, especially in countries where the diet is low in diversity with inadequate consumption of fruits, vegetables, and animal-source foods, and higher consumption of staple food, i.e., cereals, that have low concentrations of micronutrients. Genetic biofortification is a strategy to mitigate this problem and ensure nutritional security. Wheat is a target of genetic biofortification since it contributes significantly to the caloric requirement. The biofortification process involves a screening related to the presence of genetic variability for grain mineral content. Also, the accumulation of toxic elements must be considered to ensure food safety, because if ingested above the allowed concentrations, it represents health risks. In this sense, this study aimed to quantify the micronutrients iron, zinc, copper, selenium, and manganese and toxic elements arsenic and cadmium in a Brazilian wheat panel grown in Southern Brazil. The presence of genetic variability for the accumulation of micronutrients in the grain was detected; however, we observed that only the copper and manganese accumulation meet the human daily requirements. Iron, zinc, and selenium were detected in insufficient concentration to meet the daily demand. Arsenic and cadmium accumulation were not detected in wheat grain. The wheat genotypes grown in Brazil displayed a similar profile to that found in other countries which may be due to common high-yield breeding goals and the narrowing of the genetic variability, observed worldwide. Thus, the wheat genetic biofortification success in Brazil depends on the introduction of foreign genotypes, landraces, and wild relatives. (AU)

• Processo FAPESP: 14/05151-0 - Arsênio e arroz: monitoramento e estudos de (bio)remediação para segurança alimentar
• Beneficiário: Bruno Lemos Batista
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 16/10060-9 - Equipamento multi-usuário (EMU) concedido no Processo FAPESP 2014/05151-0: espectrômetro de massas com plasma indutivamente acoplado hifenado a um cromatógrafo a líquido de alta eficiência (HPLC-ICP-MS)
• Beneficiário: Bruno Lemos Batista
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários