biology

Ruminococcus

Ruminococcus is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Ruminococcus rather than just read about it. In short: Ruminococcus is a genus of anaerobic bacteria in the family Oscillospiraceae. The type species is Ruminococcus flavefaciens.

Key takeaways

Ruminococcus belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Ruminococcus to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Ruminococcus from memory before moving on to harder problems.

Reference excerpt

Ruminococcus is a genus of anaerobic bacteria in the family Oscillospiraceae. The type species is Ruminococcus flavefaciens. Members of the genus occur predominantly in the digestive tracts of herbivorous and omnivorous mammals, including ruminants and humans. Several species formerly classified in Ruminococcus have been transferred to other genera following phylogenetic analyses. Five former species were transferred to Blautia in 2008. Ruminococcus gnavus is now classified as Mediterraneibacter gnavus. In 2026, Ruminococcus albus was transferred to Hominimerdicola as Hominimerdicola alba. An early coculture study demonstrated interspecies hydrogen transfer between the bacterium then known as Ruminococcus albus and Wolinella succinogenes. Ruminococcus bromii is considered a keystone species for the degradation of resistant starch in the human colon. Lower relative abundances of R. callidus and R. bromii have been reported in people with inflammatory bowel disease. Lower relative abundances of sequences classified as Ruminococcus have also been reported in cohorts with Parkinson's disease and amyotrophic lateral sclerosis.

Phylogeny Phylogenomic analyses have demonstrated that species assigned to Ruminococcus do not form a monophyletic group. The reduced tree below shows the placement in Genome Taxonomic Database (GTDB) release R11-RS232.

References

Illustrations

Worked examples

Example 1 — a first encounter with Ruminococcus

Start with the simplest possible case. Write down what Ruminococcus claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Ruminococcus before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Ruminococcus ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Ruminococcus

In research: Ruminococcus appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Ruminococcus in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Ruminococcus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bacteria genera, Gut flora bacteria, Oscillospiraceae, so understanding it makes those chapters shorter.
In everyday life: Look for Ruminococcus outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Ruminococcus in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ruminococcus means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Ruminococcus out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ruminococcus in simple terms?

Ruminococcus is a genus of anaerobic bacteria in the family Oscillospiraceae. The type species is Ruminococcus flavefaciens.

Why does Ruminococcus matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Ruminococcus?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Ruminococcus.