Bioaccumulation Of Microcystins In Lettuce

Autor(es)

Hereman, Talita Caroline ^{[1, 2]} ; Bittencourt-Oliveira, Maria do Carmo ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Biol Sci, Luiz de Queiroz Coll Agr, BR-13418900 Piracicaba, SP - Brazil

^[2] Sao Paulo State Univ, Inst Biol Sci, BR-13506900 Rio Claro, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PHYCOLOGY; v. 48, n. 6, p. 1535-1537, DEC 2012.
• Citações Web of Science: 26

Resumo

The contamination of lettuce (Lactuca sativa L.) by water-borne crude extracts of the cyanobacterium microcystin-producing Microcystis aeruginosa (Kutzing) Kutzing was investigated. The aim of the study was to determine whether bioaccumulation of microcystins occurs in lettuce foliar tissue when sprayed with solutions containing microcystins at concentrations observed in aquatic systems (0.62 to 12.5 mu g center dot L-1). Microcystins were found in lettuce foliar tissues (8.31 to 177.8 mu g per Kg of fresh weight) at all concentrations of crude extracts. Spraying with water containing microcystins and cyanobacteria may contaminate lettuce at levels higher than the daily intake of microcystins recommended by the World Health Organization (WHO), underscoring the need to monitor such food exposure pathways by public authorities. (AU)

• Processo FAPESP: 07/57508-5 - Efeitos do extrato bruto e da microcistina-LR em Lactuca sativa L. (Asteraceae)
• Beneficiário: Talita Caroline Hereman
• Modalidade de apoio: Bolsas no Brasil - Mestrado