La(NO₃)₃和C(NO₃)₃在濃度不同時對靈芝菌絲的生長及其培養(yǎng)液中的殘?zhí)橇康挠绊懖煌?mmol/LLa³⁺和Ce³⁺能抑制靈芝菌絲的生長,抑制率分別為32.58%和42.76%;低濃度(≤1mmol/L)的La³⁺和Ce³⁺能促進菌絲生長,以0.5mmol/LLa³⁺和Ce³⁺的促進率最高,分別達到35.21%和57.01%,且隨濃度的降低這種促進作用逐漸降低。菌絲生長量與培養(yǎng)液中的殘?zhí)橇繘]有明顯的相關(guān),只有生長量最大的0.5mmol/L的La³⁺和Ce³⁺的培養(yǎng)液中的殘?zhí)橇勘葘φ盏?其余皆比對照高。

Different concentrations of La³⁺ and Ce³⁺ showed different effect on the growth and residual sugar con-tent of Ganoderma lucidum cultural meduim. At a concentration of 2 mmol/L, La³⁺ and Ce³⁺ inhibited 32. 5800 and 42. 760o respectively the growth of G.lucidum myceluim,whereas lower concentration(<1 mmol/ L)promoted the growth of myceluim.with 0.5 mmol/I. showing the maximum effect,which attained an in-crease of 35. 21%and 57. O1%respectively. Thereafter.the effect on growth regressed as the concentration was further lowered. The effect on growth was not notably relative to the residual sugar content of the cultur-al medium,which was lower than the control at the maximum growth effect of 0.5 mmol/L concentrations of La³⁺ and Ce³⁺.while higher than the control at all other concentrations.