SAT (A), OASTL (B), and CBL (C) in organs of narrow-leaf lupins grown in soil. For SAT and OASTL, means are plotted ±sd, n = 2 to 5 measurements on aliquots of a single extract from pooled samples representing approximately 50 seeds from a total of several plants (see “Materials and Methods”). The sds for SAT in the cotyledon and testa were too small for the error bars to show in the figure. CBL measurements were done only once (on the same pooled sample representing 50 seeds) for the soil-grown lupins; however, these figures are in agreement with the CBL measurements on organs from lupins grown in sand and watered with nutrient (see Fig. 5 and Table IV), demonstrating the reliability of the CBL assay.