title: exponential phase LL cells
design: The Nannochloropsis oceanica IMET1 was from the Institute of Marine and Environmental Technology, the University Systems of Maryland. It was grown in natural seawater supplemented with f/2 in a climate incubator at 202  under 12:12 h photoperiod with irradiance of 100 mol photons m-2 s-1. Before the different experiments were started, the cultures from exponential phase of growth were acclimated to 30 mol photons m-2 s-1 (LL) for 4 weeks.