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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 %