Fig. 5From: Differential contributions of NO3−/NH4+ to nitrogen use in response to a variable inorganic nitrogen supply in plantlets of two Brassicaceae species in vitroThe amount of nitrogen in Chla (mchla-N), the amount of Chla-N (mchla-N(nitrate)) derived from the nitrate assimilation, and the amount of Chla-N (mchla-N(ammonium)) derived from the ammonium assimilation of the Ov (a) and Bn (b) plantlets. Note: The ratio of nitrate to ammonium within each inorganic nitrogen concentration was 2:1. The error bars of mchla-N(nitrate) and mchla-N(ammonium) were calculated by the error propagation formulaBack to article page