biology

Salibacterium

Salibacterium 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 Salibacterium rather than just read about it. In short: Salibacterium is a genus of Gram-positive bacteria from the family Bacillaceae. The type species is Salibacterium halotolerans.

Key takeaways

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

Reference excerpt

Salibacterium is a genus of Gram-positive bacteria from the family Bacillaceae. The type species is Salibacterium halotolerans. Salibacterium aidingense and Salibacterium salarium were previously species belonging to Bacillus, a genus that has been recognized as displaying extensive polyphyly and has been restricted by recent phylogenetic studies to only include species closely related to Bacillus subtilis and Bacillus cereus. The name Salibacterium is derived from the prefix "-sali" (from the Latin noun sal/salis, which translates to "salt"), and the suffix "-bacterium" (from the Latin noun bacterium, referring to a rod). Together, Salibacterium translates to a rod from salt.

Biochemical Characteristics and molecular signatures Source: Members of this genus are aerobic or facultatively anaerobic. Most members are non-motile, except S. aidingense which exhibits motility by means of peritrichous flagella. Some members form endospores. All of the members require salt for growth with optimal growth occurring in the presence of 10–12% (w/v) NaCl. Temperature range for growth is 15–45°C, with optimum growth temperature in the range 30-37°C. Nine conserved signature indels (CSIs) were identified for this genus in the following proteins: GTP-binding protein, CoA-binding protein, nucleoside triphosphatase YtkD, protease modulator HflC, dihydrolipoyl dehydrogenase, DUF3603 family protein, M20/M25/M40 family metallohydrolase, exonuclease SbcCD subunit D and l-arabinose isomerase, which in most cases are exclusively shared by either all or most members of this genus. These CSIs were identified through analyses of genome sequences from Salibacterium species and provide a reliable molecular means of differentiating this genus from other Bacillaceae genera and bacteria.

Phylogeny Salibacterium, as of May 2021, contains a total of 7 species with validly published names. 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 Vishnuvardhan Reddy, S; Thirumala, M; Sasikala, C; Venkata Ramana, C (November 2015). "Salibacterium halotolerans gen. nov., sp. nov., a bacterium isolated from a salt pan, reclassification of Bacillus qingdaonensis as Salibacterium qingdaonense comb. nov. and Bacillus halochares as Salibacterium halochares comb. nov". International Journal of Systematic and Evolutionary Microbiology. 65 (11): 4270–4275. doi:10.1099/ijsem.0.000572. PMID 26338019.

Worked examples

Example 1 — a first encounter with Salibacterium

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

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

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

Frequently asked questions

What is Salibacterium in simple terms?

Salibacterium is a genus of Gram-positive bacteria from the family Bacillaceae. The type species is Salibacterium halotolerans.

Why does Salibacterium 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 Salibacterium?

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 Salibacterium.