Fig. 3 | Scientific Reports

Fig. 3

From: Fortification of Daqu with the soy sauce-functional fungus Aspergillus oryzae CICC 2339: investigations into Daqu properties and Baijiu brewing outcomes

Fig. 3The alternative text for this image may have been generated using AI.

Alpha diversity, Beta diversity and co-occurrence networks of microbial communities. (A-B) Alpha diversity indices (Chao1 and Shannon) for bacterial (A) and fungal (B) communities in AOG and CG. Boxplots show the median and interquartile range (ns: not significant). (C-D) Principal Coordinate Analysis (PCoA) based on Bray-Curtis distances revealing the structural differences in bacterial (C) and fungal (D) communities. The percentage of variation explained by PCo1 and PCo2 is indicated on the axes. (E-F) Spearman correlation network analysis of bacterial (E) and fungal (F) genera. Nodes represent genera, and edges represent strong correlations (Thresholds: Spearman |r| > 0.4, p < 0.05, Relative abundance > 0.01%). The size of the node is proportional to its degree of connectivity. Red lines indicate positive correlations. Key hub genera identified include: Thermoactinomyces (高温放线菌属), Pediococcus (片球菌属), Staphylococcus (葡萄球菌属) for bacteria; and Rhizopus (根霉属), Aspergillus (曲霉属) for fungi.

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