本文在部分文献的基础上研究了稀土元素之一的镧元素（La）对灰树花菌丝体富集有机铬的影响。研究发现镧能有效促进灰树花富集有机铬，用灰树花菌丝体的优化培养基（以1 L计，含5 mg CrCl3•6H2O、100 mg La(NO3)3、300 g马铃薯、36 g葡萄糖、35 g麸皮）培养灰树花菌丝体，灰树花菌丝体中的有机铬的产量为25.61 μg/g，比未加镧元素的增加18.33 μg/g。

The influence of one of rare earth element lanthanide on the organic chromium accumulation of grifola frondosas was investigated. Results showed that using lanthanide-containg medium could efficiently promote the organic chromium accumulation of grifola frondosas and the optimal culture medium contained 5 mg/L CrCl3•6H2O, 100 g/L La(NO3)3, 300 g/L potato, 36 g/L glucose and 35 g/L bran. With this medium, the yield of organic chromium in grifola frondosas reached 25.61 μg/g. Compared with that in culture medium without lanthanide, 18.33 μg/g excess amount of organic chromium was abtained.