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Fig. 9 | BMC Plant Biology

Fig. 9

From: The plant defensin gene AtPDF2.1 mediates ammonium metabolism by regulating glutamine synthetase activity in Arabidopsis thaliana

Fig. 9

Activities of ammonium assimilation enzymes and concentration of ammonium assimilation products in shoots of Col-0 and pdf2.1 mutants. Plants were grown in 1/4 plant nutrient solution for 21 d. a Concentration of glutamine (Gln). b Activity of glutamate synthase (NADH-GOGAT). c Concentration of glutamate (Glu). d Concentration of total amino acids (AA) in shoots of Col-0, pdf2.1–1, and pdf2.1–2. Data represent means ± SEs (n = 4). Bars displaying the same letters are not significantly different at P < 0.05 according to the least significant difference test

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