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. 2020 Apr 2;16(4):e1008353. doi: 10.1371/journal.ppat.1008353

Table 1. Important fungal–bacterial interactions altering pathogenesis.

Fungi Bacteria Relationship Model Observation Reference
Candida albicans Enterococcus spp. Synergy Germ-free and antibiotic-perturbed mice Enterococcal species are found to dominate the gastrointestinal microbiome following the introduction of C. albicans [38]
Antagonistic C. elegans coinfection model E. faecalis can inhibit C. albicans hyphal morphogenesis and virulence [38]
C. albicans Pseudomonas aeruginosa Antagonistic In vitro models P. aeruginosa lipopolysaccharide inhibits C. albicans biofilm and hyphal development [39]
In vitro models P. aeruginosa excretes quorum-sensing molecules and quinolone signals, which repress hyphal and biofilm formation [39]
In vitro models C. albicans secretes farnesol, which down-regulates the expression of P. aeruginosa virulence factors through modulation of the Pseudomonas quinolone signal system [39]
In vitro models C. albicans inhibits the production of cytotoxic exotoxin A and pyoverdine [39]
Neutropenic co-colonized mice Mice colonized with both P. aeruginosa and C. albicans had significantly lower mortality compared to those colonized with P. aeruginosa alone [39]
C. albicans Clostridium spp. Synergy In vitro models C. albicans coculture promotes C. difficile and C. perfringens growth in aerobic conditions [63]
C. difficile mouse model Oral Candida administration worsens C. difficile severity [64]
Antagonistic In vitro models p-cresol, produced by C. difficile, inhibits hyphal formation and virulence of C. albicans [63]
C. difficile mouse model C. albicans reduces C. difficile growth and C. difficile–related mortality, which appears dependent on the alterations that Candida induces on the gut bacteriome composition [40]