楊小紅; 胡清秀; 韓立榮
中國農業科學院農業資源與農業區劃研究所; 湖南農業大學園藝園林學院
【中文摘要】 以平菇(Pleurotus ostreatus)農科P1號為研究對象,通過在培養料中投放不同濃度的氯化汞、氯化鎘、三氧化二砷和硝酸鉛,研究平菇對培養料中鉛(Pb)、鎘(Cd)、汞(Hg)和砷(As)4種有害重金屬的吸收富集規律及培養料中各種重金屬臨界含量值。結果表明,平菇農科P1號對培養料中Pb、Cd、Hg和As的吸收富集系數分別為0.0270.121、0.1611.440、0.0620.376和0.1120.695。平菇對4種重金屬的吸收富集能力排序為Cd>As>Hg>Pb。平菇培養料中有害重金屬Pb、Cd、Hg和As的臨界含量值分別為(mg/kg濕重)18.88、0.44、0.94和3.91。
【英文摘要】 Accumulation of cadmium,lead,mercury and arsenic in fruit bodies of Pleurotus ostreatus,strain nongkeP1,was investigated,and the safe concentration limits(critical concentrations) of the four heavy metals in the cultivation substrate were estimated.Accumulation coefficients for Cd,Pb,Hg and As ranged between 0.161～1.44,0.027～0.121,0.062～0.376 and 0.112～0.695,respectively.Accumulation efficiencies were in the order Cd>As>Hg>Pb,and critical concentrations of Pb,Cd,Hg and As in the cultivation substrate were 18.88,0.44,0.94 and 3.91 mg/kg wet weight,respectively.
【中文關鍵詞】 平菇; 培養料; 重金屬; 富集; 臨界含量值
【英文關鍵詞】 Pleurotus ostreatus; artificial cultivation substrate; heavy metal; bioaccumulation; critical content
【基金】中國農業科學院農業資源與農業區劃研究所中央級公益性科研院所基本科研業務費專項資金“食用菌重金屬含量調研及栽培基質中重金屬臨界值研究”(編號:國庫901-12);; 十一五支撐項目“東南地區農田秸稈菌業循環生產技術集成研究與示范”(編號:2007BAD89B1)的部分研究內容
【文獻出處】 食用菌學報,Acta Edulis Fungi,編輯部郵箱,2009年03期 【DOI】CNKI:SUN:SYJB.0.2009-03-017