science

Helicobacter muridarum

Helicobacter muridarum 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 Helicobacter muridarum rather than just read about it. In short: Helicobacter muridarum is a helical, gram-negative bacterium in the Helicobacteraceae family, Campylobacterales order. This species is microaerophilic and was first isolated from the intestinal mucosa of rodents, hence its name.

Key takeaways

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

Reference excerpt

Helicobacter muridarum is a helical, gram-negative bacterium in the Helicobacteraceae family, Campylobacterales order. This species is microaerophilic and was first isolated from the intestinal mucosa of rodents, hence its name. It is characterised by the presence of 9 to 11 periplasmic fibers which appear as concentric helical ridges on the surface of each cell. The cells are motile and have bipolar tufts of 10 to 14 sheathed flagella. These bacteria are nutritionally fastidious and physiologically similar to other Helicobacter species and Wolinella succinogenes, but can be differentiated from these organisms by their unique cellular ultrastructure. ST1T (= ATCC 49282T) is its type strain.

References

Further reading Billy Bourke; Sherman, Philip M. (2006). Bacterial Genomes and Infectious Diseases. Humana P., U.S. ISBN 1-59745-152-5. Chaouche-Drider, Nadia (April 2009). "A Commensal Helicobacter sp. of the Rodent Intestinal Flora Activates TLR2 and NOD1 Responses in Epithelial Cells". PLOS ONE. 4 (4) e5396. Bibcode:2009PLoSO...4.5396C. doi:10.1371/journal.pone.0005396. PMC 2671595. PMID 19401779. Feng, S.; Ku, K.; Hodzic, E.; Lorenzana, E.; Freet, K.; Barthold, S. W. (2005). "Differential Detection of Five Mouse-Infecting Helicobacter Species by Multiplex PCR". Clinical and Vaccine Immunology. 12 (4): 531–536. doi:10.1128/CDLI.12.4.531-536.2005. ISSN 1556-6811. PMC 1074391. PMID 15817762. Ge, Z.; Feng, Y.; Muthupalani, S.; Eurell, L. L.; Taylor, N. S.; Whary, M. T.; Fox, J. G. (2011). "Coinfection with Enterohepatic Helicobacter Species Can Ameliorate or Promote Helicobacter pylori-Induced Gastric Pathology in C57BL/6 Mice". Infection and Immunity. 79 (10): 3861–3871. doi:10.1128/IAI.05357-11. ISSN 0019-9567. PMC 3187262. PMID 21788386. Jiang HQ, Kushnir N, Thurnheer MC, Bos NA, Cebra JJ (May 2002). "Monoassociation of SCID mice with Helicobacter muridarum, but not four other enterics, provokes IBD upon receipt of T cells". Gastroenterology. 122 (5): 1346–54. doi:10.1053/gast.2002.32959. PMID 11984521.

External links "Helicobacter muridarum". The Encyclopedia of Life. Type strain of Helicobacter muridarum at BacDive - the Bacterial Diversity Metadatabase

Worked examples

Example 1 — a first encounter with Helicobacter muridarum

Start with the simplest possible case. Write down what Helicobacter muridarum 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 Helicobacter muridarum 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 Helicobacter muridarum 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 Helicobacter muridarum

In research: Helicobacter muridarum 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 Helicobacter muridarum 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: Helicobacter muridarum is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bacteria described in 1992, Campylobacterota, Campylobacterota stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Helicobacter muridarum 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 Helicobacter muridarum in 20 minutes

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

Frequently asked questions

What is Helicobacter muridarum in simple terms?

Why does Helicobacter muridarum 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 Helicobacter muridarum?

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 Helicobacter muridarum.