The accumulation of rare-earth yttrium ions by Penicillium sp. ZD28.

To obtained fungal resources with excellent tolerance and accumulation capacity to rare earth yttrium ions (Y), rare earth ore samples were collected and used for microbial screening. A fungus hyper-resistant to Y was obtained and the effects of the fungus in three physiological states (growth process, mycelial pellets with physiological activity and the fungus powder after being ground) on the Y accumulation were investigated. The Y resistant fungus was identified as Penicillium sp.