biology

Salisediminibacterium

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

Key takeaways

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

Reference excerpt

Salisediminibacterium is a genus of Gram-positive bacteria from the family Bacillaceae. The type species is Salisediminibacterium halotolerans. Salisediminibacterium beveridgei and Salisediminibacterium selenitireducens 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 Salisediminibacterium is derived from the prefix "-salisedimini" (from the Latin noun sal, which translates to "salt" and the Latin noun sedimen, referring to sediment), and the suffix "-bacterium" (from the Latin noun bacterium, referring to a rod). Together, Salisediminibacterium translates to a rod from salt sediment.

Biochemical Characteristics and Molecular Signatures Sources: Cells are either non-spore formers or spore forming and are variably motile. Catalase and nitrate reduction activities are variable. Most species are halophilic and alkali-tolerant requiring a minimum of 1% (w/v) NaCl in the medium for growth to occur. S. selenitireducens demonstrates weak microaerophilic growth and anaerobic respiratory growth with Se(IV), As(V), nitrate, nitrite, trimethylamine oxide and fumarate as electron acceptors. Analyses of genome sequences from Salisediminibacterium species identified four conserved signature indels (CSIs) for this genus in the following proteins: insulinase family protein, alpha-ketoacid dehydrogenase subunit beta, MBL fold metallo-hydrolase and excinuclease ABC subunit UvrA, which in most cases are exclusively shared by either all or most members of this genus. These CSIs provide a reliable method of identification and differentiation for this genus from other Bacillaceae genera and bacteria.

Taxonomy Salisediminibacterium, as of May 2021, contains a total of 5 species with validly published names. This branching pattern is also observed in the Genome Taxonomy Database (GTDB).

Phylogeny

References

Further reading Sultanpuram, VR; Mothe, T; Mohammed, F (May 2015). "Salisediminibacterium haloalkalitolerans sp. nov., isolated from Lonar soda lake, India, and a proposal for reclassification of Bacillus locisalis as Salisediminibacterium locisalis comb. nov., and the emended description of the genus Salisediminibacterium and of the species Salisediminibacterium halotolerans". Archives of Microbiology. 197 (4): 553–60. Bibcode:2015ArMic.197..553S. doi:10.1007/s00203-015-1081-8. PMID 25638045. Jiang, F; Cao, SJ; Li, ZH; Fan, H; Li, HF; Liu, WJ; Yuan, HL (September 2012). "Salisediminibacterium halotolerans gen. nov., sp. nov., a halophilic bacterium from soda lake sediment". International Journal of Systematic and Evolutionary Microbiology. 62 (Pt 9): 2127–32. doi:10.1099/ijs.0.034488-0. PMID 22039006.

Worked examples

Example 1 — a first encounter with Salisediminibacterium

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

In research: Salisediminibacterium 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 Salisediminibacterium 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: Salisediminibacterium 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 Salisediminibacterium 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 Salisediminibacterium in 20 minutes

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

Frequently asked questions

What is Salisediminibacterium in simple terms?

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

Why does Salisediminibacterium 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 Salisediminibacterium?

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 Salisediminibacterium.