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Fig. 5 | BMC Microbiology

Fig. 5

From: Microbial diversity composition of apple tree roots and resistance of apple Valsa canker with different grafting rootstock types

Fig. 5

Principal Coordinate Analysis (PCoA) based on Bray–Curtis dissimilarity metrics for all samples. a Bacteria samples from three ecological niches (R: root endophyte; RS: root rhizosphere soil; RZ: root zone soil). b Fungi samples from three ecological niches (R: root endophyte; RS: root rhizosphere soil; RZ: root zone soil). c Bacteria samples from two planting patterns (standard rootstocks and dwarfing rootstocks). d Fungi samples from two planting patterns (standard rootstocks and dwarfing rootstocks). Notes: n = 3 for each sample. Abscissa represent one principal component, the ordinate represents another principal component, and the percentage represents the contribution of the principal component to the sample difference; each point represents a sample, and samples in the same group are represented by the same color

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