Kinetics of δ¹³C (in ‰) in the fine roots and <i>T. melanosporum</i> mycorrhizas beneath hazel tree A11 in 2010–2011 after the pulse labelings of the leaves with ¹³CO₂.

Two-way Anova has been performed using R; data have been raised to the power minus 2 prior to Anova as suggested by the Box-Cox method in order to ensure the normality of residuals. Anova showed a ‘date’ (p<0.01) and ‘organ’ (p<0.001) effects but no interaction. Standard errors of means are given (in brackets). Mean comparison has been made for simple effects (Tukey test): for d13C in fine roots and d13C in mycorrhizas respectively, means followed by a different letter are significantly different.