%0 Journal Article %T Differential contributions of NO3£¿/NH4+ to nitrogen use in response to a variable inorganic nitrogen supply in plantlets of two Brassicaceae species in vitro %A Hongtao Hang %A Kaiyan Zhang %A Yanyou Wu %J Archive of "Plant Methods". %D 2019 %R 10.1186/s13007-019-0473-1 %X The online version of this article (10.1186/s13007-019-0473-1) contains supplementary material, which is available to authorized users %K Ammonium %K Inorganic nitrogen assimilation %K Nitrate %K Quantification %K Stable nitrogen isotope %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6668107/