Figure 4
From: Contribution of ammonia oxidation to chemoautotrophy in Antarctic coastal waters
Relationship between AO rate and gene and transcript abundance. Panels show AO rates plotted against: (a) archaeal rrs gene abundance; (b) archaeal amoA gene abundance; (c) archaeal amoA transcript abundance; and (d) the ratio of archaeal amoA transcripts to genes (mRNA/DNA). Symbols represent water masses and dates sampled as in Figure 1.
