... May 8, 2010, Accepted August 24, 2010. - 339 - Application and Comparison of Two Biotic Ligand Models Predicting Copper Toxicity and Accumulation in Heavy Metal Tolerant Moss Hiroki NAKANISHI*, ... Center, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa 230-0045, Japan ABSTRACT Two biotic ligand models (BLMs) predicting copper accumulation and toxicity to heavy metal tolerant moss (Funaria ... Proton competition with copper accumulation was not observed. Difference in logK Cu between the two models indicated that tolerance with copper results in the decrease in K Cu . In addition, it was...