【摘要】 在未污染的基质和重金属污染的土壤中培养金福菇,研究其对土壤重金属的生物富集水平.干燥后的子实体样品采用微波消解处理并采用AAS分析(金属含量).结果表明,子实体重金属含量随土壤重金属的增加而增加.单一污染的土壤中,高浓度的Cd和Hg影响出菇时间和出菇量;第一潮菇中的重金属含量略高于第二潮菇,茵盖重金属含量高于茵柄;子实体中重金属最大积累量分别是Cr(48.33±0.27 mg/kg,DW)、Cd(14.72±0.17 mg/kg,DW)、Pb(2.13±0.03 mg/kg,DW)和Hg(2.27±0.04 mg/kg,DW).在单一污染土壤与复合污染土壤中所采集子实体的重金属含量相似.更多还原

【Abstract】 Tricholoma lobayense Heim were cultivated in uncontaminated compost(mainly consist of straw,wood dust and so on) and then were embedded in artificially contaminated soil.After fructification, fruiting bodies were harvested to determine bioaccumulation levels of heavy metals(Cd,Hg,Pb and Cr).Dried fruiting body sample was digested by microwave method and analyzed by AAS.The results showed that heavy metal level of fruiting bodies samples harvested from contaminated soils increased with increasing of heavy metal concentrations in soils.Fruiting time and production of Tricholoma lobayense Heim,which harvested from soil polluted by single heavy metal,were effected by high concentration of Cd and Hg in soil.Heavy metal contents in first wave mushroom samples were slightly higher than those of the second one,and caps higher than stems.The highest heavy-metal concentration in fruiting bodies sample harvested from soil singly contaminated were Cr(48.33±0.27 mg/kg,DW), Cd(14.72±0.17 mg/kg,DW),Pb(2.13±0.03 mg/kg,DW) and Hg(2.27±0.04 mg/kg,DW). The heavy metals levels in fruiting bodies samples harvested from singly contaminated soils were similar to that grow in mixed heavy metals contaminated soils.更多还原