Fig. 1From: A cost-effective approach to produce 15N-labelled amino acids employing Chlamydomonas reinhardtii CC503 Comparison of growth curves: a strain CC503 in a medium with natural abundance NH4Cl (solid line) and 15NH4Cl (dash line), b strain CC503 (solid line) and wild type strain 137c (dash line) in a medium containing 15NH4ClBack to article page