biology

Planifilum

Planifilum 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 Planifilum rather than just read about it. In short: Planifilum is a Gram-positive and aerobic bacterial genus from the family Thermoactinomycetaceae. Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI).

Key takeaways

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

Reference excerpt

Planifilum is a Gram-positive and aerobic bacterial genus from the family Thermoactinomycetaceae.

Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI).

References

Further reading Zhang, Y.-x.; Dong, C.; Biao, S. (1 August 2007). "Planifilum yunnanense sp. nov., a thermophilic thermoactinomycete isolated from a hot spring". International Journal of Systematic and Evolutionary Microbiology. 57 (8): 1851–1854. doi:10.1099/ijs.0.64646-0. PMID 17684270. Yu, Zhen; Wu, Chu; Yang, Gui-Qin; Zhou, Shun-Gui (21 September 2014). "Planifilum caeni sp. nov., A Novel Member of Thermoactinomycete Isolated from Sludge Compost". Current Microbiology. 70 (1): 135–140. doi:10.1007/s00284-014-0693-6. ISSN 0343-8651. PMID 25240290. Hatayama, K. (1 September 2005). "Planifilum fimeticola gen. nov., sp. nov. and Planifilum fulgidum sp. nov., novel members of the family 'Thermoactinomycetaceae' isolated from compost". International Journal of Systematic and Evolutionary Microbiology. 55 (5): 2101–2104. doi:10.1099/ijs.0.63367-0. PMID 16166716. Tulasi, Satyanarayana; Jennifer, Littlechild; Yutaka, Kawarabayasi (2013). Thermophilic microbes in environmental and industrial biotechnology biotechnology of thermophiles (2nd ed.). Dordrecht: Springer. ISBN 978-94-007-5899-5. Paul, De Vos (2009). Bergey's manual of systematic bacteriology (2nd ed.). Dordrecht: Springer. ISBN 978-0-387-68489-5.

Worked examples

Example 1 — a first encounter with Planifilum

Start with the simplest possible case. Write down what Planifilum 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 Planifilum 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 Planifilum 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 Planifilum

In research: Planifilum 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 Planifilum 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: Planifilum is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bacillota stubs, Bacteria genera, Taxa described in 2005, so understanding it makes those chapters shorter.
In everyday life: Look for Planifilum 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 Planifilum in 20 minutes

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

Frequently asked questions

What is Planifilum in simple terms?

Planifilum is a Gram-positive and aerobic bacterial genus from the family Thermoactinomycetaceae. Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI).

Why does Planifilum 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 Planifilum?

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 Planifilum.