Study of the Cu, Mn, Pb and Zn dynamics in soil, plants and bee pollen from the region of Teresina (PI), Brazil



Document title: Study of the Cu, Mn, Pb and Zn dynamics in soil, plants and bee pollen from the region of Teresina (PI), Brazil
Journal: Anais da Academia Brasileira de Ciencias
Database: PERIÓDICA
System number: 000366626
ISSN: 0001-3765
Authors: 1
1
2
1
Institutions: 1Universidade Federal do Piaui, Centro de Ciencias da Natureza, Teresina, Piaui. Brasil
2Universidade Federal do Piaui, Centro de Ciencias Agrarias, Teresina, Piaui. Brasil
Year:
Season: Dic
Volumen: 84
Number: 4
Pages: 881-890
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract The purpose of this study is to characterize native bee plants regarding their capacity to extract and accumulate trace elements from the soil and its consequences to the sanity of the produced pollen. The trace elements Cu, Mn, Pb and Zn were analyzed in soil, plants and bee pollen from Teresina region (PI), Brazil, by flame atomic absorption spectrophotometer. Considering the studied plant species, Cu and Pb metals presented in the highest levels in the roots of B. platypetala with 47.35 and 32.71 μg.mL-1 and H. suaveolens with 39.69 and 17.06 μg.mL-1, respectively, while in the aerial parts Mn and Zn metals presented the highest levels in S. verticillata with 199.18 and 85.73 μg.mL-1. In the pollen, the levels of Cu, Mn, Pb and Zn vary from 5.44 to 11.75 μg.mL-1; 34.31 to 85.75 μg.mL-1; 13.98 to 18.19 μg.mL-1 and 50.19 to 90.35 μg.mL-1, respectively. These results indicate that in the apicultural pasture the translocation (from soil to pollen) of Mn and Zn was more effective than in case of Cu and Pb, therefore, the bee pollen can be used as food supplement without causing risks to human health
Portuguese abstract O objetivo deste estudo é caracterizar plantas apícolas nativas, quanto a sua capacidade de extrair e acumular elementos-traço do solo e suas conseqüências na sanidade do pólen produzido. Os elementos-traço Cu, Mn, Pb e Zn foram analisados em solo, planta e pólen apícolas em Teresina (PI), Brasil, por espectrofotometria de absorção atômica com atomização em chama. Considerando as espécies de plantas estudadas, os metais Cu e Pb apresentaram nas raízes maiores teores de B. platypetala com 47,35 e 32,71 µg.mL-1 e H. suaveolens com 39,69 e 17,06 µg.mL-1, respectivamente, enquanto na parte aérea os metais Mn e Zn apresentaram os maiores teores, em S. verticillata com 199,18 e 85, 73 µg.mL-1. No pólen os teores de Cu, Mn, Pb e Zn varia de 5,44 a 11,75 µg.mL-1; 34,31 a 85,75 µg.mL-1; 13,98 a 18,19 µg.mL-1 e 50,19 a 90,35 µg.mL-1, respectivamente. Esses resultados indicam que, no pasto apícola, a translocação (do solo ao pólen apícola) de Mn e Zn foi mais eficiente do que Cu e Pb, portanto, o pólen apícola poderá ser utilizado como complemento alimentar sem causar riscos à saúde humana
Disciplines: Biología
Keyword: Ecología,
Insectos,
Contaminación,
Abejas,
Polen,
Bioacumulación,
Translocación,
Elementos traza
Keyword: Biology,
Ecology,
Insects,
Pollution,
Bees,
Pollen,
Bioaccumulation,
Translocation,
Trace elements
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