chemistry

Mycobacteroides chelonae

Mycobacteroides chelonae is a chemistry 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 Mycobacteroides chelonae rather than just read about it. In short: Mycobacteroides chelonae (formerly Mycobacterium chelonae) is a species of bacteria from the phylum Actinomycetota belonging to the genus Mycobacteroides. Mycobacteroides chelonae is a rapidly growing aerobic bacteria that is found all throughout the environment, including within sewage and tap water.

Key takeaways

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

Reference excerpt

Mycobacteroides chelonae (formerly Mycobacterium chelonae) is a species of bacteria from the phylum Actinomycetota belonging to the genus Mycobacteroides. Mycobacteroides chelonae is a rapidly growing aerobic bacteria that is found all throughout the environment, including within sewage and tap water. An opportunistic pathogen of vertebrates, it can cause actinomycetoma-like skin and soft tissue infections of humans and is also a leading cause of piscine tuberculosis. The complete genome sequence of the M. chelonae CCUG 47445 type strain was deposited and published in DNA Data Bank of Japan, European Nucleotide Archive, and GenBank in 2016 under the accession number CP007220. It is grouped in Runyon group IV.

Epidemiology

On average, two cases of nonpulmonary M. chelonae infection are reported in South Australia each year. This bacterium is capable of causing skin, soft tissue, and bone infections, particularly after trauma and surgery. It has also been documented as a cause of mastitis after nipple piercing.

References

Further reading Holt, John G., ed. (1994). "Table 21.3 Characteristics differentiating the rapidly growing species and subspecies of Mycobacterium". Bergey's Manual of Determinative Bacteriology (9th ed.). pp. 600–1. ISBN 978-0-683-00603-2. Hill, L. R.; Skerman, V. B. D.; Sneath, P. H. A. (1984). "Corrigenda to the Approved Lists of Bacterial Names: Edited for the International Committee on Systematic Bacteriology". International Journal of Systematic Bacteriology. 34 (4): 508–11. doi:10.1099/00207713-34-4-508. Strickland, Christopher; Jawad, Ali S.M. (2008). "Mycobacterium chelonae: A rare cause of subcutaneous nodules in a patient on long term corticosteroids". Grand Rounds. 8: 4–5. Retrieved 8 August 2016.

External links Type strain of Mycobacteroides chelonae at BacDive - the Bacterial Diversity Metadatabase

Worked examples

Example 1 — a first encounter with Mycobacteroides chelonae

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

In research: Mycobacteroides chelonae appears in chemistry 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 Mycobacteroides chelonae 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: Mycobacteroides chelonae is common in secondary-school and first-year university syllabi. It links to neighbouring topics Acid-fast bacilli, Bacteria described in 1923, Fish diseases, so understanding it makes those chapters shorter.
In everyday life: Look for Mycobacteroides chelonae 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 Mycobacteroides chelonae in 20 minutes

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

Frequently asked questions

What is Mycobacteroides chelonae in simple terms?

Why does Mycobacteroides chelonae matter?

Because it connects several chemistry 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 Mycobacteroides chelonae?

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 Mycobacteroides chelonae.