science

Methylomirabilis oxyfera

Methylomirabilis oxyfera is a science 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 Methylomirabilis oxyfera rather than just read about it. In short: Candidatus "Methylomirabilis oxyfera" is a candidate species of Gram-negative bacteria belonging to the NC10 phylum, characterized for its capacity to couple anaerobic methane oxidation with nitrite reduction in anoxic environments. To acquire oxygen for methane oxidation, M. oxyfera utilizes an intra-aerobic pathway through the reduction of nitrite (NO2) to dinitrogen (N2) and oxygen.

Key takeaways

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

Reference excerpt

Candidatus "Methylomirabilis oxyfera" is a candidate species of Gram-negative bacteria belonging to the NC10 phylum, characterized for its capacity to couple anaerobic methane oxidation with nitrite reduction in anoxic environments. To acquire oxygen for methane oxidation, M. oxyfera utilizes an intra-aerobic pathway through the reduction of nitrite (NO2) to dinitrogen (N2) and oxygen.

Enrichment Enriched Ca. "M. oxyfera" cells have been identified as primarily having a unique polygonal cell shape through the use of electron microscopy techniques. Unlike methanotrophic Pseudomonadota, Ca. "M. oxyfera" cells lack intracytoplasmic membranes when grown under laboratory conditions. The optimum growth ranges for Ca. "M. oxyfera" is between pH 7-8 and 25-30 °C. Ca. "M. oxyfera"cell envelopes are Gram-negative and are generally 0.25–0.5 μm in diameter and 0.8–1.1 μm in length.

Methane oxidation Ca. "M. oxyfera" has the capacity to disproportionate nitric oxide into oxygen and nitrogen gas. This intermediate oxygen is then used in the oxidation of methane into carbon dioxide.

Overall reactions Nitrogen oxide dismutation:

2 NO−2 → 2 NO → N2 + O2 Methane oxidation:

O2 + CH4 → CH3OH → CO2

Environmental significance Ca. "M. oxyfera" has been identified in several environments including rice paddy soil in China, multiple river and lake sediments, and wastewater sludge in The Netherlands. Ca. "M. oxyfera" is predicted to inhabit environments with high concentrations of nitrogen and methane, near boundaries that separate oxic and anoxic zones. It is suggested that Ca. "M. oxyfera" and similar organisms contribute to the global carbon and nitrogen cycles. These organisms may also play a role in reducing the nutrient loads within freshwater ecosystems that have been contaminated with fertilizers. Nitrites are usually undesirable in the environment, can be detrimental to human health, and can lead to eutrophication of aquatic ecosystems and algal blooms. Meanwhile methane is a potent greenhouse gas that has a stronger greenhouse potential per molecule than carbon dioxide. The presence of organisms like M. oxyfera can therefore be beneficial in many environments and might be used for bioremediation or sewage treatment in the future.

References

Illustrations

Worked examples

Example 1 — a first encounter with Methylomirabilis oxyfera

Start with the simplest possible case. Write down what Methylomirabilis oxyfera claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Methylomirabilis oxyfera 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 Methylomirabilis oxyfera 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 Methylomirabilis oxyfera

In research: Methylomirabilis oxyfera appears in science 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 Methylomirabilis oxyfera 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: Methylomirabilis oxyfera is common in secondary-school and first-year university syllabi. It links to neighbouring topics Candidatus taxa, Gram-negative bacteria, so understanding it makes those chapters shorter.
In everyday life: Look for Methylomirabilis oxyfera 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.

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How to study Methylomirabilis oxyfera in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Methylomirabilis oxyfera 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 Methylomirabilis oxyfera out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Methylomirabilis oxyfera in simple terms?

Why does Methylomirabilis oxyfera matter?

Because it connects several science 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 Methylomirabilis oxyfera?

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 Methylomirabilis oxyfera.