Pressure Treated Wood
It absolutely can. Lay a short piece of PT lumber in 1" of constant water and then fasten a non-PT piece on top of it, and let it sit like that for a year or two and see what you get :-)
A piece of wood can transfer moisture to another piece. In practice, though, bottom plates and mudsills resting on concrete do NOT get saturated (if they do, there are serious foundation problems in play). They might pick up some moisture, but any transfer to the stud is minimal and usually negligible.
Last edited by cortell; 04-12-2012 at 08:20 AM.