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Cadmium and lead accumulation in two littoral plants of five lakes in Poanan, Poland

100%

Drzewiecka K., Borowiak K., Mleczek M., Zawada I., Golinski P.

Acta Biologica Cracoviensia. Series Botanica

2010

tom 52

nr 2

We measured cadmium and lead concentrations in two littoral plants (Phragmites australis Cav. Trin ex. Steudel and Typha angustifolia L.) collected in June and September 2007 from five selected lakes in the Poznan city area, and also in sediment and water samples from the same places. We determined the metal concentrations in rhizomes and leaves, and in sediment and water from the littoral and near the bank zone. Only low levels of the heavy metals were found. Pb and Cd concentrations were higher in water collected from the bank zone than from the littoral zone. Pb and Cd accumulation was noted in sediments. Heavy metal levels were higher in rhizomes than in stems and leaves. The studied aquatic macrophytes may be bioaccumulators and bioindicators of Pb and Cd in freshwater in natural conditions, even when concentrations are low.

Frequency of mutations related to hereditary haemochromatosis in northwestern Poland

86%

Raszeja-Wyszomirska J., Kurzawski G., Suchy J., Zawada I., Lubinski J., Milkiewicz P.

Journal of Applied Genetics

2008

tom 49

nr 1

105-107

Hereditary haemochromatosis has been linked with C282Y and H63D mutations of the HFE gene. In Europe, frequencies of these mutations are the highest in Northern European countries and gradually decrease southwards. We analysed the prevalence of HFE mutations in 1517 DNA samples, including 1000 samples from the general population (subjects registered at general practitioner practices) in northwestern Poland, and 517 samples of cord blood from the same region. We identified 2 (0.13%) homozygotes and 117 (7.8%) heterozygotes for the C282Y mutation. As regards the H63D mutation (1505 DNA samples analysed), 38 (2.5%) samples were homozygotes and 380 (25%) were heterozygotes. Twenty-one (1.4%) compound heterozygotes were found. These results correspond well with data from other Central European countries and seem to confirm the hypothesis of North-South spread of the C282Y mutation.

Ograniczanie wyników

1 Acta Biologica Cracoviensia. Series Botanica

1 Journal of Applied Genetics

2 Zawada I.

1 Borowiak K.

1 Drzewiecka K.

1 Golinski P.

1 Kurzawski G.

1 Lubinski J.

1 Milkiewicz P.

1 Mleczek M.

1 Raszeja-Wyszomirska J.

1 Suchy J.

1 2010

1 2008

Wyniki wyszukiwania

Cadmium and lead accumulation in two littoral plants of five lakes in Poanan, Poland

Frequency of mutations related to hereditary haemochromatosis in northwestern Poland