Table 2.

Allocation of carbon and nitrogen to the roots of Arabidopsis during its vegetative stage (7-week-old) in response to Pieris brassicae egg deposition and/or larval feeding (Exp. 11, Table 1).

Treatment	C%	N%	C:N	No. of biological replicates
C	40.38 ± 0.98	5.08 ± 0.10	8.20 ± 0.36	6
E	39.59 ± 0.50	5.37 ± 0.14	7.87 ± 0.36	7
F	38.87 ± 0.62	5.35 ± 0.21	7.89 ± 0.47	8
EF	39.80 ± 0.89	5.15 ± 0.15	8.70 ± 0.43	8

Data are shown as means ±SE of percentage of carbon (C%) and nitrogen (N%) and the C:N ratio of dry roots of plants subjected to four plant treatments: untreated controls (C), plants exposed to P. brassicae eggs (E), plants fed upon by P. brassicae larvae for 7 d (F), or plants exposed to eggs and subsequent feeding by larvae for 7 d (EF). Statistical differences were tested with ANOVA and post-hoc Tukey tests. There were no significant differences between the treatments for the variables tested (P>0.05). The number of replicates (plants) was n=6–8 per treatment.