Figure 3

Radial plots of the highest specific growth rates of M. convolutum (9-FW) (black), M. reisseri (13) (blue) and P. falcate (4A-1) (red) in 180 Screen 2 conditions (a) and growth rate analysis for M. convolutum (9-FW) in the subsequent Screen 1.2 (b). (a) The radial plot displays the highest specific growth rate μ _max (h⁻¹) for each condition indicated by the distance of a given data point from the centre of the plot. The radial plot shows growth rate data of Screen 1.1 in comparison to Screen 2 to visualise the growth performance improvement. The growth rate performance of three key strains in Screen 2 was much higher than in Screen 1.1. (b) Surface chart of the growth rate data analysis in Screen 1.2. The growth rate data are shown as a function of the nitrogen (N) and phosphate (P) concentration exemplary for M. convolutum (9_FW) in individual plots for media containing NaNO₃ (1), NH₄Cl (2), (NH₂)₂CO (3) and NH₄NO₃ (4) as nitrogen source.