Microbial transformation of cadmium sorbed by soil

• Autorzy: Czaban J
• Języki publikacji: EN

Abstrakty

EN

Intensive microbial growth on 4 nutrient media (containing glucose, starch, nutrient broth or peptone + yeast extract) in soil suspension experiments, changing pH (acidification or alkalization) caused partial liberation of Cd sorbed by soil particles to liquid phase. At the same time a considerable transformation of the solid phase Cd to soluble in 0.1 N NaOH form was observed. Increased Cd concentration in the alkaline extract was accompanied by decrease of the heavy metal extractability with DTPA. The mechanisms which might be responsible for the observed phenomena are discussed. The obtained results suggest that microbial action can simultaneously increase and decrease availability of Cd to plants.

Słowa kluczowe

EN

soil; cadmium; soil-sorbed cadmium; soil microorganism; heavy metal; toxic pollutant; environment pollution; cadmium transformation; microbial transformation; organic compound; rhizosphere region; pH; different change

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2000
• Tom: 09
• Numer: 6
• Opis fizyczny: p.455-462,fig.,ref.

Twórcy

autor

Czaban J

• Institute of Soil Sciences and Plant Cultivation, 8 Czartoryskich St., 24-100 Pulawy, Poland

Bibliografia

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