稀土对灵芝生长影响的初步研究

Preliminary study of rare earth elements on the growth of Ganodema lucidum

目的：研究在灵芝培养料中添加稀土元素对灵芝的菌丝生长、子实体的鲜重和干重的影响。方法：采用稀土拌料的方法。结果：稀土的浓度对灵芝菌丝的生长均有一定程度的抑制作用，抑制率在７．４９％～１０．９６％之间；稀土浓度对灵芝的菌丝均有增白作用，洁白度随稀土浓度的增加而降低。稀土在１００，１５０μｇ·ｇ－１时，灵芝子实体的干重和鲜重有显著增加。在５０μｇ·ｇ－１时，虽灵芝子实体的鲜重有所减少，但其干重却增加２．０％。结论：稀土浓度在１００～１５０μｇ·ｇ－１时，灵芝的产量增加显著，可供生产使用。

OBJECTIVE:Rare earth compound was added to the medium of Ganoderma lucidum to study the effect of rare earth elements on the hypha growth,the fresh and dry weight of fruit body of G.lucidum .METHODS:The culture medium dressed with rare earth elements.RESULTS:It showed that all concentrations of rare earth elements had some inhibition on the hypha growth of G.lucidum. However they could make the hypha of G.lucidum whiter.The fresh and dry weight of fruit body increased significantly when the concentrations of rare earth elements were 100μg·g -1 and 150μg·g -1 .Their raising rates were +4.13%,+0.20% and +16.47,+5.84%respectively.CONCLUSION:The yield of G.lucidum can be increased by rare earth elements when its concentrations were 100～150μg·g -1 .