Figure 2 From: Interactions of biotic and abiotic environmental factors in an ectomycorrhizal symbiosis, and the potential for selection mosaics Mean response of Pinus muricata root length to mycorrhizal colonization. Mean response of P. muricata root length to mycorrhizal colonization (log response ratio = ln(X m /X n ) where X m is the root length of inoculated plants and X n is the root length of non-inoculated plants), as influenced by a three-way interaction between P. muricata maternal seed family, soil type (lab versus field), and the addition of a microbial filtrate. Means with different letters are significantly different from each other (p < 0.05) according to Tukey HSD post-hoc tests, and means with an asterisk are significantly different from zero.Back to article page