Table 1.
The physical and chemical properties of root zone soil.
Fig 1.
Detected metabolites (a), volcano plot (b) and scatter plot (c) of differential metabolites.
Fig 2.
Correlation of differential metabolites.
Circles represent distinct differential metabolites, and the larger the number of metabolites associated with them, the larger the circle. The red lines represent positive correlations, and the green lines represent negative correlations. The thickness of the line represents the absolute value of the Pearson correlation coefficient r (the thicker the line, the larger the | r|).
Fig 3.
KEGG enrichment map of differential metabolites (a) and differential abundance score map (b).
Fig 4.
OUT Venn diagram.
Fig 5.
Relative abundance of bacteria phyla (a) and classes (b) in root zone soil of different tea varieties.
C, means the class level; P, means the phylum level.
Table 2.
The soil bacterial community richness and diversity in different tea varieties root zone soil.
Fig 6.
PCA of bacterial communities.
Fig 7.
LEfSe analysis of root zone soil bacterium from different tea varieties.
(a) LEf Se analysis evolutionary branching diagram. (b) LDA value distribution map. P, bacterial phylum; C, class; O, order; F, family; G, genus; S, species.
Fig 8.
Prediction of bacterial BugBase phenotype.
The three lines from bottom to top represent the lower quartile, mean, and upper quartile, respectively.
Fig 9.
RDA and pearson correlation analysis of soil bacterial communities and soil environmental factors.
(a) RDA. (b) Pearson correlation analysis. SOM: organic matter. NO3−-N: nitrate nitrogen. NH4+-N: ammonium nitrogen. AK: available potassium. AP: available phosphorus. EC: electrical conductivity. Sand (>20 μm): the proportion or amount of sand particles with diameter greater than 20 μm. Silt (2–20 μm): the proportion or amount of silt particles with diameter between 2 and 20 μm. Clay (<2 μm): the proportion or amount of clay particles with diameter less than 2 μm.