u/Gialithia

Hi everyone, recently I noticed what I think is white mold at the bottom of a wooden (oak) closet which has been standing in the basement for many years. However, I'm pretty certain that growth is quite recent. It's only visible at the bottom of the closet. I suspect this is the result of low temperatures (17 to 18 C) and humidity levels of 50-55%. Is there any saving this or should the closet go? Thanks in advance!

PS this is in central Europe