魏海龍; 吳學謙; 曹群; 李海波; 吳慶其; 付立忠; 柴振林; 賀亮; 程俊文
浙江省林業科學研究院; 浙江省森林資源生物與化學利用重點實驗室; 麗水市食用菌研究開發中心; 浙江益圣菌物發展有限公司; 浙江林學院; 浙江省林產品質量檢測站
【中文摘要】 為了解鉛、鎘、砷、汞4種重金屬元素在香菇栽培基質和子實體中的遷移特性,從而為香菇生產實踐中有效控制重金屬的含量提供技術依據。結果表明,香菇培養料和產地環境中的土壤、水均含有一定濃度的重金屬元素。在香菇各個栽培階段,栽培基質中4種重金屬的遷移率,尤其從菌棒遷移到子實體中的遷移率存在較大差異,鎘和汞更多地遷移到了香菇子實體中,鉛和砷則更多地殘留在栽培基質中。此外,隨著基質中重金屬添加量的提高,香菇子實體和廢菌棒中的重金屬含量均呈不斷升高趨勢,相關性分析顯示,重金屬添加量與廢菌棒中重金屬含量存在顯著相關。本研究表明香菇栽培基質中的重金屬含量可以通過菌絲體的吸收、富集并進一步遷移到香菇子實體中,栽培者可以從源頭上通過控制培養料中的重金屬限量或阻斷遷移途徑來控制香菇子實體中重金屬含量。
【英文摘要】 To clarify the transportation characteristics of 4 heavy metals in cultivated substrate and fruit body of Lentinula edodes, the content of heavy metals (Pb, Cd, Hg, As) in the cultivated substrate of producing zone were firstly analyzed in this paper. The results showed that the soil-water system in the cultivated substrate and fruit body of Lentinula edodes was polluted with certain concentration of heavy metals. In all the cultivating stages, there existed an obvious difference of transportation rate among those 4 heavy metals of cultivated substrate. Cd and Hg were mostly transported into the fruit body from cultivated substrate while the majority of Pb and As were still remained. Further, the content of heavy metals in its wasted fungi rods and fruit body were continuously increased with the addition of heavy metals in its original substrates. And there was a significant correlation between the addition of heavy metals and the content of that in wasted fungi rods by correlation ana...更多lysis. It suggested that the content of heavy metals in cultivated substrate of Lentinula edodes could be accumulated into its fruit body with the adsorp-tion of mycelium. The final amount of heavy metals of Lentinula edodes could be adjusted by controlling the addition of its substrate and interrupting its transportation route. 還原
【中文關鍵詞】 香菇; 重金屬; 遷移特性; 栽培基質
【英文關鍵詞】 Lentinula edodes; Heavy metal; Transportation characteristics; Cultivated substrate
【基金】浙江省科技計劃重大攻關項目(2004C12009);; 浙江省科技計劃重點項目(2004F12013)
【文獻出處】 中國食用菌,Edible Fungi of China,編輯部郵箱,2009年03期 【DOI】CNKI:SUN:ZSYJ.0.2009-03-021