Fig. 9From: Greater morphological and primary metabolic adaptations in roots contribute to phosphate-deficiency tolerance in the bread wheat cultivar Kenong199Heat map of metabolite contents in the roots which significant changes in either of cultivar under Pi deficiency. Variations in metabolites are represented by fold change calculated using formula log2(−Pi/+Pi). The parts in bold indicate the different categories of metabolites. Asterisks indicate significant differences between P treatments by the student’s t-test (n = 4), * p < 0.05, ** p < 0.01, and ***p < 0.001, respectivelyBack to article page