FIGURE 2.

Association of Pss growth inhibition ability of tested bacterial isolates with plant cultivars (Cobrançosa and Verdeal Transmontana), organs (leaves, twigs, and knots) and microbial habitats (epiphytes and endophytes), as revealed by a multiple factor analysis (MFA). The first two dimensions represent 43.91% of the total variance. Dimension 1 is associated to the inhibition ability of antagonists (contribution of 77.3%, p < 0.001), while dimension 2 is associated to microbial habitat (contribution of 42.7%, p < 0.001), cultivar (41.4%, p < 0.001), and organ (15.9%, p < 0.001). An individual (black square) is at the barycenter of corresponding partial points (colored squares), thus representing an individual as seen by a single group. Therefore, each black square represents an individual viewed by two groups of variables: Pss inhibition (yellow squares) and their presence regarding cultivar (red squares)/microbial habitat (blue squares)/plant organ (green squares).