Fig. 5

Principal component analysis (PCA) showing the relationships between the observed traits and the bacteriobiome (at the top) and the mycobiome (on the bottom) of mature stigmas of Phelipanche ramosa (PR MA1, PR MA2, PR MA3) and mature stigmas Nicotiana tabacum (NT MA1, NT MA2, NT MA3); Group I: II-protease, I-ureolysis, I-aerobic chemoheterotrophy, II-aesculin hydrolysis, II-nitrate reduction to nitrite, II-urease positive, I-nitrate reduction, I-nitrous oxide denitrification, I-denitrification, I-nitrite denitrification, I-nitrate denitrification, I-dark thiosulfate oxidation, I-nitrogen respiration, I-dark oxidation of sulfur compounds, I-nitrite respiration, I-nitrate respiration, I-methylotrophy, I-methanol oxidation, I-ligninolysis, I-sulfite respiration, I-thiosulfate respiration, II-methane production, I-respiration of sulfur compounds, Gammaproteobacteria, I-dissimilatory arsenate reduction; Group II: Acinetobacter, I-aliphatic non methane hydrocarbon degradation, II-alpha-galactosidase, II-CO₂-fixation, Moraxellaceae, I-fumarate respiration, I-dark sulfur oxidation, I-dark sulfide oxidation, Moraxellaceae; Group III: I-nitrogen fixation, Enterobacteriaceae, I-mammal gut, I-human gut, I-chitinolysis, I-nitrate ammonification, I-nitrite ammonification, I-chemoheterotrophy; Group IV: Pseudomonadaceae, II-indole production, I-plant pathogen, II-catalase positive, Paenibacillus, I-human pathogens all, II-plant hormone, I-animal parasites or symbionts, II- siderophores, II-H₂S production, I-cellulolysis, I-aromatic hydrocarbon degradation, Pseudomonas, I-xylanolysis, I-oil bioremediation, I-manganese oxidation; Set I: I-nectar/tap_saprotroph, Alternaria, IV-sugar-rich_substrates, IV-wood,leaf/fruit/seed,soil,dung,animal_material, Cladosporium, Didymella, Candida, Trichosporon, IV-leaf/fruit/seed,roots,soil,animal_material, V-yeast; Set II: IV-leaf/fruit/seed,soil,animal_material, Powellomyces, III-algal_parasite, V-zoosporic-rhizomycelial_(chytrid-like), I-pollen_saprotroph, I-mycoparasite, IV-leaf/fruit/seed,soil,fungal_material, Trichoderma, IV-pollen; Set III: Ceratobasidiaceae, III-root-associated, Chalastospora, IV-leaf/fruit/seed, Ampelomyces, Cyphellophora, Kalmanozyma, Entoloma, I-unspecified_saprotroph, Herpotrichiellaceae, I-soil_saprotroph, II-root-associated, IV-roots,soil, Malassezia; Set IV: III-leaf/fruit/seed_pathogen, IV-soil, V-dimorphic_yeast, Dothideomycetes, Fungi, Coprinellus, Scoliciosporum, Ascomycota, Pleosporales; Set V: IV-wood, I-wood_saprotroph, Udeniomyces, V-thallus_photosynthetic, I-lichenized, I-sooty_mold, Aureobasidium, IV-leaf/fruit/seed,roots,animal_material,sugar-rich_substrates, Stereum, Phaeosphaeriaceae, Auriscalpium, Neurospora, Hormonema, II-foliar_endophyte, Pluteus, Cladonia, II-no_endophytic_capacity.