Chemical changes in bromeliad leaves at different vegetative stages

Autor(es)

Elias, C. ^[1] ; Fernandes, E. A. N. ^[1] ; Franca, E. J. ^[1] ; Bacchi, M. A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Ctr Energia Nucl Agr, BR-13400970 Piracicaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY; v. 282, n. 1, p. 111-115, OCT 2009.
• Citações Web of Science: 1

Resumo

Studies concerning the accumulating capacity of native epiphytic bromeliads are of utmost relevance, due to the continuous incorporation of chemical elements provided by these organisms in the ecosystems. Bromeliad species from diverse So Paulo State conservation units, Brazil, were sampled for young, mature and old leaves using a sustainable sampling method. By applying INAA, the accumulation of ten chemical elements, i.e. Br, Ca, Co, Fe, K, Na, Rb, Sc, Sr and Zn, was investigated in different leaf vegetative stages. The bromeliads showed divergent chemical element distribution patterns, demonstrating a real complexity in the accumulation and translocation mechanisms utilized by these plants. (AU)

• Processo FAPESP: 05/57547-5 - Amostragem simplificada de bromelias nativas para a biomonitoracao de elementos quimicos em florestas do estado de sao paulo.
• Beneficiário: Camila Elias
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 06/60265-4 - Concentrações naturais de elementos químicos nas unidades de conservação do estado de São Paulo
• Beneficiário: Elvis Joacir de França
• Modalidade de apoio: Auxílio à Pesquisa - Programa Primeiros Projetos