楊小紅; 胡清秀; 韓立榮
中國農(nóng)業(yè)科學(xué)院農(nóng)業(yè)資源與農(nóng)業(yè)區(qū)劃研究所; 湖南農(nóng)業(yè)大學(xué)園藝園林學(xué)院
【中文摘要】 以平菇(Pleurotus ostreatus)農(nóng)科P1號為研究對象,通過在培養(yǎng)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(yǎng)料中鉛(Pb)、鎘(Cd)、汞(Hg)和砷(As)4種有害重金屬的吸收富集規(guī)律及培養(yǎng)料中各種重金屬臨界含量值。結(jié)果表明,平菇農(nóng)科P1號對培養(yǎng)料中Pb、Cd、Hg和As的吸收富集系數(shù)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(yǎng)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(guān)鍵詞】 平菇; 培養(yǎng)料; 重金屬; 富集; 臨界含量值
【英文關(guān)鍵詞】 Pleurotus ostreatus; artificial cultivation substrate; heavy metal; bioaccumulation; critical content
【基金】中國農(nóng)業(yè)科學(xué)院農(nóng)業(yè)資源與農(nóng)業(yè)區(qū)劃研究所中央級公益性科研院所基本科研業(yè)務(wù)費專項資金“食用菌重金屬含量調(diào)研及栽培基質(zhì)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(qū)農(nóng)田秸稈菌業(yè)循環(huán)生產(chǎn)技術(shù)集成研究與示范”(編號:2007BAD89B1)的部分研究內(nèi)容
【文獻(xiàn)出處】 食用菌學(xué)報,Acta Edulis Fungi,編輯部郵箱,2009年03期 【DOI】CNKI:SUN:SYJB.0.2009-03-017