Leaf age influences the diversity of phyllosphere microbial diversity.

The Phylogenetic Diversity (PD) of the phyllosphere microbiota from leaves of different ages (dpi). The average ± standard error for all plants the four field trials is shown. n= 73, 84, and 66 for 7, 14, and 21 dpi, respectively; * P ≤ 0.001 by the Kruskal-Wallis multiple comparisons test. ns: not significant.