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Background: The evolutionary relationships and interactions between plants and their microbiomes are of high importance to the survival of plants in extreme conditions. Changes in the plant’s microbiome can affect plant development, growth and health. Along the arid Arava, southern Israel, acacia trees (Acacia raddiana and Acacia tortilis) are cons...

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... bacterial communities (Table 1) indicating a different bacterial structure. To compare the diversities of epiphytic and endophytic bacterial communities extracted from leaf samples, acacia samples from south-facing canopies were analyzed and plotted using non-metric multidimensional scaling (NMDS), based on the Bray-Curtis distance matrix (Fig. 2). Using analysis of similarity test (ANOSIM), two separate clusters of epiphytic and endophytic bacterial communities were found to be signicantly different (p=0.001; Fig. 2A). While the epiphytic bacterial communities from both acacia species (A. raddiana and A. tortilis) did not demonstrate separate clusters (p-value=0.474, Fig. 2A), ...
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... leaf samples, acacia samples from south-facing canopies were analyzed and plotted using non-metric multidimensional scaling (NMDS), based on the Bray-Curtis distance matrix (Fig. 2). Using analysis of similarity test (ANOSIM), two separate clusters of epiphytic and endophytic bacterial communities were found to be signicantly different (p=0.001; Fig. 2A). While the epiphytic bacterial communities from both acacia species (A. raddiana and A. tortilis) did not demonstrate separate clusters (p-value=0.474, Fig. 2A), the endophytic bacterial communities showed to be signicantly different for both acacia species (p-value=0.004, Fig. 2B). To illustrate these differences, we plotted the ...
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... matrix (Fig. 2). Using analysis of similarity test (ANOSIM), two separate clusters of epiphytic and endophytic bacterial communities were found to be signicantly different (p=0.001; Fig. 2A). While the epiphytic bacterial communities from both acacia species (A. raddiana and A. tortilis) did not demonstrate separate clusters (p-value=0.474, Fig. 2A), the endophytic bacterial communities showed to be signicantly different for both acacia species (p-value=0.004, Fig. 2B). To illustrate these differences, we plotted the bacterial phylum with more than 5% of the total community composition (Fig. 3) and performed Tukey's test of signicance on the log-transformed abundances to ...
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... communities were found to be signicantly different (p=0.001; Fig. 2A). While the epiphytic bacterial communities from both acacia species (A. raddiana and A. tortilis) did not demonstrate separate clusters (p-value=0.474, Fig. 2A), the endophytic bacterial communities showed to be signicantly different for both acacia species (p-value=0.004, Fig. 2B). To illustrate these differences, we plotted the bacterial phylum with more than 5% of the total community composition (Fig. 3) and performed Tukey's test of signicance on the log-transformed abundances to normalize the variance. Results showed a higher median abundance of Actinobacteria in A. raddiana and A. tortilis, when comparing ...
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... bacterial community was shown to double that of its endophytic bacterial community counterpart (Table 1). While the average number of classied bacteria sequences for epiphytes was slightly higher (16,752) compared to endophytic (14,857) bacterial communities, the sequence number in each sample had no effect on the obtained diversity indices (Fig. S2). The higher abundance and richer microbial communities in epiphytes compared to endophytes was also observed in young and mature leaves of Origanum vulgare, where the total number of colony-forming units (CFU) of epiphytic bacterial communities (5.0 ± 0.2) was more than double the CFU of the associated endophytic communities (1.8 ± ...
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... results demonstrate that the epiphytic and endophytic bacterial communities are signicantly unique ( Fig. 2A, and Fig. 6). We also found that the endophytic (but not epiphytic) bacteria communities differed between the two acacia species (Figs. 2A, 2B and Fig. 6), with host specic endophytic communities. In fact, many reports have indicated that the composition and abundance of endophytes in plants is synergistically determined by plant genotype and ...
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... results demonstrate that the epiphytic and endophytic bacterial communities are signicantly unique ( Fig. 2A, and Fig. 6). We also found that the endophytic (but not epiphytic) bacteria communities differed between the two acacia species (Figs. 2A, 2B and Fig. 6), with host specic endophytic communities. In fact, many reports have indicated that the composition and abundance of endophytes in plants is synergistically determined by plant genotype and environmental factors [42]. Plant tissue characteristics highly affect microbial abundance, thus endophyte enrichment varies widely in different ...

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Background: The evolutionary relationships between plants and their microbiomes are of high importance to the survival of plants in general and even more in extreme conditions. Changes in the plant's microbiome can affect plant development, growth, fitness, and health. Along the arid Arava, southern Israel, acacia trees ( Acacia raddiana and Acacia...