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Table 1 The 20 colonic bacterial genera with the greatest increase or decrease in abundance in rats fed a seaweed-supplemented diet (C2.5), and their abundance in other diet supplemented groups. BF = basal feed; C2.5 = C. crispus 2.5 %; C0.5 = C. crispus 0.5 %; F2.5 = FOS Inulin 2.5 %; F0.5 = FOS Inulin 0.5 %

From: Prebiotic effects of diet supplemented with the cultivated red seaweed Chondrus crispus or with fructo-oligo-saccharide on host immunity, colonic microbiota and gut microbial metabolites

Phylum Class Order Family Genus Fold changea
C2.5 C0.5 F2.5 F0.5
Proteobacteria Alphaproteobacteria Rhizobiales Aurantimonadaceae Aurantimonas 11.7 12.5 4.7 7.8
Actinobacteria Actinobacteria Bifidobacteriales Bifidobacteriaceae Bifidobacterium 4.8 1.1 2 1.6
Proteobacteria Gammaproteobacteria Alteromonadales Alteromonadaceae Agarivorans 3.2 1.8 1.5 −1.8
Proteobacteria Gammaproteobacteria Legionellales Legionellaceae Legionella 2.9 2 2 1.3
Proteobacteria Gammaproteobacteria Alteromonadales Shewanellaceae Shewanella 2.6 1.5 −1.3 −1.9
Firmicutes Clostridia Clostridiales Lachnospiraceae Blautia 2.4 1.6 2.3 −2.5
Proteobacteria Betaproteobacteria Burkholderiales Alcaligenaceae Sutterella 2.0 1.6 2.4 1.1
Tenericutes Erysipelotrichi Erysipelotrichales Erysipelotrichaceae Holdemania 1.8 1.5 2.4 1.1
Firmicutes Clostridia Clostridiales Lachnospiraceae Dorea 1.6 1.1 −1.1 −1.2
Firmicutes Bacilli Bacillales Staphylococcaceae Staphylococcus 1.4 1.1 1.3 1.2
Actinobacteria Actinobacteria Actinomycetales Micrococcaceae Arthrobacter −1.2 −1.1 −1.1 −1.2
Firmicutes Clostridia Clostridiales Lachnospiraceae Oribacterium −1.3 1.0 −2.3 −2.0
Proteobacteria Alphaproteobacteria Rhodobacterales Rhodobacteraceae Thioclava −1.4 −1.0 −2.6 −2.8
Actinobacteria Actinobacteria Actinomycetales Micrococcaceae Micrococcus −1.6 −1.5 −1.3 −1.8
Firmicutes Bacilli Lactobacillales Streptococcaceae Streptococcus −1.9 −1.3 −1.3 −1.4
Actinobacteria Actinobacteria Actinomycetales Intrasporangiaceae Janibacter −2.0 1.2 −4.0 −1.2
Tenericutes Mollicutes Entomoplasmatales Spiroplasmataceae Spiroplasma −2.1 −1.5 −1.5 1.2
Firmicutes Clostridia Clostridiales Lachnospiraceae Pseudobutyrivibrio −2.3 −6.4 −1.3 1.1
Proteobacteria Gammaproteobacteria Enterobacteriales Enterobacteriaceae Proteus −5.9 −1.3 1.6 1.0
Proteobacteria Gammaproteobacteria Enterobacteriales Enterobacteriaceae SMC −24.4 −1.4 1.8 −1.0
  1. aFold change represents the relative abundance of the bacterial genus in rats fed seaweed- or inulin-supplemented diets compared with the basal diet; values were calculated from the microarray hybridization scores derived from fluorescence intensity. C2.5, Chondrus crispus 2.5 % (dry w/w); C0.5, 0.5 %; F2.5, FOS inulin 2.5 %; F0.5, 0.5 %