Ms. Huan Mao, whose major is Cell Biology, talked about metallothionein (MT) one more time. Her presentation was based on a paper which was published on the journal "Ecotoxicology and Environmental Safety". The information of this paper is as following: Aure´ lie Bigot, Pe´ rine Doyen, Paule Vasseur, Franc-ois Rodius, 2009. Metallothionein coding sequence identification and seasonal mRNA expression of detoxification genes in the bivalve Corbicula fluminea. Ecotoxicology and Environmental Safety.  72: 382– 387. (Photo by Dr. Wan-Xi Yang)