In fact, if the paper below can be believed - we already know that bacteria can feed on high level nuclear waste – so low-level (EUV) should be a cakewalk.
http://www.lenr-canr.org/acrobat/VysotskiiVsuccessful.pdf From: David Roberson …. if it is assumed that LENR can be released at temperatures that do not result in the loss of life for all bacteria, then it might be expected to be utilized. I guess you could say I am making a point that life should be able to live just about under any circumstances both on Earth and elsewhere.