Figure 3.

Rhythmic pattern of biomass partitioning and resource allocation is elicited by the ectomycorrhizal fungus in pedunculate oak principal roots. (a) Extent of biomass (g dry weight), (b) recently fixed carbon (excess of ¹³C), and (c) recently fixed nitrogen (excess of ¹⁵N) to the organs of oak during root and shoot flush in oak microcuttings engaged in biotic interactions. For the purpose of simplicity, relative values are shown here, and absolute values are given in Supplementary Fig. S3. Red colour marks RF and blue colour marks SF, and different letters indicate a significant difference according to linear model, ANOVA and Tukey’s test, at the significance level P < 0.05. Please refer to Supplementary Table S4 for the corresponding values. Where no lettering is included, the treatments were not different to each other. DW, dry weight; ¹³C, allocation of C-13; ¹⁵N, allocation of N-15; RF, root flush; SF, shoot flush; Pc, Piloderma croceum, Ac, Streptomyces sp. AcH505; Pp, Pratylenchus penetrans, Pq, Phytophthora quercina; Ma, Microsphaera alphitoides.