ISSN:
1618-2545
Keywords:
Ganoderma lucidum
;
heavy metal
;
toxicity
;
tracer
;
translocation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The lelvels of seven heavy metals and their toxicity towardGanoderma lucidum under various cultivation conditions were assessed. The contents of Mn, Cu, Zn, Cd, Hg, Pb and U in the fruitbodies of cultivatedG. lucidum, and sawdust substrates were determined to be at trace levels for U, 0.01–0.1 μg/g for Cd and Hg, and 1–5 μg/g for Pb, 10–120 μg/g for Mn, Cu and Zn. The effects of heavy metals, on the growth of mycelia ofG. lucidium in pure cultures were examined over a wide range of concentrations (10–3,000 μg/ml), and their toxicities were found to decrease in the order: Hg〉Cd〉Cu〉U〉Pb〉Mn=Zn. The translocation and accumulation of Zn from contaminated substrates (at 10 μg/g) in fruitbodies were investigated by using65Zn tracer, andG. lucidum was found to take up Zn with an efficiency of 〉60%, leading to accumulation of 〉100 μ/g, in fruitbodies and 〉80 μ/g Zn in basidiospores.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02464301
Permalink
