Plate · Bacteroidota

Prevotella

Species27named in this genus

Products0across its species

Samples24,332healthy and not

The genus

Species in this genus

Include unnamed strains (10)

Species	Healthy guts ↓ 0–100%	Products
Prevotella marseillensis	6.0%	0
Prevotella corporis	4.5%	0
Prevotella dentalis	3.5%	0
Prevotella bivia	3.4%	0
Prevotella merdae	2.7%	0
Prevotella disiens	2.3%	0
Prevotella pectinovora	2.3%	0
Prevotella intermedia	<1%	0
Prevotella histicola	<1%	0
Prevotella ihumii	<1%	0
Prevotella nigrescens	<1%	0
Prevotella melaninogenica	<1%	0
Prevotella brunnea	<1%	0
Prevotella denticola	<1%	0
Prevotella amnii	<1%	0
Prevotella jejuni	<1%	0
Prevotella aurantiaca	<1%	0
Prevotella koreensis	<1%	0
Prevotella multiformis	<1%	0
Prevotella pallens	<1%	0
Prevotella scopos	<1%	0
Prevotella veroralis	<1%	0
Prevotella vespertina	<1%	0
Prevotella conceptionensis	0%	0
Prevotella fusca	0%	0
Prevotella lacticifex	0%	0
Prevotella micans	0%	0
Across the genus	32%	0

* Counted in the same healthy people as the species (whole-genome samples). All bars use the same 0–100% scale. A product with two Prevotella species counts once in the genus total.

What they are

Its species' DNA

A C G T

Genome sizes · 27 Prevotella species

Shortest we have Mycoplasmoides genitalium 0.6M

⋮ 589 shorter than any Prevotella

Prevotella amnii 2.4M

Prevotella micans 2.5M

Prevotella bivia 2.5M

Prevotella brunnea 2.6M

Prevotella aurantiaca 2.6M

Prevotella intermedia 2.7M

Prevotella koreensis 2.7M

Prevotella corporis 2.8M

Prevotella vespertina 2.8M

Prevotella nigrescens 2.9M

Prevotella histicola 3.0M

Prevotella veroralis 3.0M

Prevotella multiformis 3.0M

Prevotella disiens 3.1M

Prevotella pallens 3.1M

Prevotella melaninogenica 3.2M

Prevotella denticola 3.2M

Prevotella fusca 3.3M

Prevotella pectinovora 3.3M

Prevotella scopos 3.3M

Prevotella ihumii 3.3M

Prevotella dentalis 3.4M

Prevotella merdae 3.9M

Prevotella jejuni 3.9M

Prevotella conceptionensis 4.1M

Prevotella marseillensis 4.2M

Prevotella lacticifex 4.2M

⋮ 619 longer than any Prevotella

Longest we have Bradyrhizobium altum 9.8M

Prevotella genomes run from 2.4M to 4.2M: mid-sized for gut microbes.

One reference genome per species; strains vary.

Their ID genes, lined up: shared stretches form solid stripes

16S gene, V4 region, from one reference sequence per species, aligned so the same positions line up. A blank is a gap: letters other species have and this one lacks. Switch to “Only where they differ” to fade the letters they share.

From its species' genomes and lab tests

What its species can do

A species counts when most of its strains can. Not measured in anyone's gut. 6 of its 27 species aren't in either source yet.

Can ferment fiber 15 of 21 species P. dentalis, P. intermedia, P. histicola, P. nigrescens, P. melaninogenica, P. brunnea and 9 more
Can use lactose 12 of 19 species P. dentalis, P. bivia, P. histicola, P. melaninogenica, P. denticola, P. amnii and 6 more
Can eat inulin 5 of 16 species P. intermedia, P. nigrescens, P. melaninogenica, P. denticola, P. veroralis
Can make propionate 2 of 16 species P. disiens, P. intermedia
Can make lactic acid 2 of 16 species P. disiens, P. histicola
Can make butyrate 0 of 16 species None of its species
Can eat resistant starch 0 of 16 species None of its species
Can eat pectin 0 of 16 species None of its species
Can feed on gut mucus 0 of 16 species None of its species
Can change bile acids 0 of 16 species None of its species
Can make B vitamins 0 of 16 species None of its species
Can make hydrogen sulfide 0 of 16 species None of its species
Can make methane 0 of 16 species None of its species

What’s typical · a description, not a comparison

In healthy guts

Everyone · 12,213 people · 129 studies

How common

Found in 32% of healthy people.

How big a slice of the gut

largest Bacteroides 9.8%
2nd largest Phocaeicola 9.1%
3rd largest Segatella 6.4%
4th largest Bifidobacterium 6.2%
5th largest Faecalibacterium 5.4%
6th largest Alistipes 5.2%
7th largest Blautia 3.6%
8th largest Ruminococcus 3.0%
⋮
top 20 Prevotella 1.3%
649 other microbes, each a sliver 31.1%
18.9%

On average, 1.3% of the microbes in a healthy gut: among the 20 largest slices.

By age and sex

Every group, drawn the same way. Only some samples record age or sex, so each group says how many people it comes from. Tap one to see it above.

By age

367 people · 11% carry it 0.2% of the microbes top 40

198 people · 5 studies 21% carry it 0.5% of the microbes top 20

57 people · 25% carry it 0.2% of the microbes top 50

1,283 people · 27 studies 34% carry it 1.4% of the microbes top 20

142 people · 15 studies 19% carry it 0.3% of the microbes top 40

By sex

2,063 people · 24% carry it 0.8% of the microbes top 20

1,530 people · 29 studies 24% carry it 1.0% of the microbes top 20

Compared within studies that had both

In conditions

Compared with healthy people in the same studies, it’s less common in 5 conditions and more common in 1 condition. Only studies that had both are counted.

A difference is an association: it doesn’t mean this microbe causes, prevents or treats any of these.

Strongest first, then the biggest gap · Each figure is 10 people

Gestational diabetes 187 people · 3 studies Less common in people with it Healthy 58% With it 39%
Chronic fatigue syndrome 302 people · 3 studies Less common in people with it Healthy 30% With it 18%
Chronic kidney failure 487 people · 3 studies Less common in people with it Healthy 59% With it 46%
Breast cancer 673 people · 3 studies As many carry it in people with it Healthy 81% With it 77%
Carriers have about a third as much, in 2 of 2 studies (31% → 9.1% of their gut microbes).
Diffuse large B-cell lymphoma 35 people · 1 study Less common in people with it Healthy 100% With it 46%
Bile duct cancer 19 people · 1 study More common in people with it Healthy 54% With it 100%
High blood pressure 50 people · 1 study Less common in people with it Healthy 94% With it 52%

PubMed · human studies and reviews first

Recent research

No recent human studies or reviews yet. Probiome follows PubMed for the few hundred most-studied microbes; rarer species often only show up in large surveys. Search PubMed for this genus ↗

Prevotella

Species in this genus

Its species' DNA

What its species can do

In healthy guts

Where these numbers come from

In conditions

Where these numbers come from

Also compared · 125 conditions

Studies disagree · 3

No meaningful difference · 122

Recent research