science

Psychrobacter cryohalolentis

Psychrobacter cryohalolentis 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 Psychrobacter cryohalolentis rather than just read about it. In short: Psychrobacter cryohalolentis is a Gram-negative, nonmotile, aerobic species of bacteria. It was first isolated from Siberian permafrost.

Key takeaways

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

Reference excerpt

Psychrobacter cryohalolentis is a Gram-negative, nonmotile, aerobic species of bacteria. It was first isolated from Siberian permafrost. Its type strain is K5T (=DSM 17306T =VKM B-2378T). Hypoacylated lipopolysaccharide (LPS) from P. cryohalolentis induces moderate TLR4-mediated inflammatory response in macrophages and such LPS bioactivity may potentially result in the failure of local and systemic bacterial clearance in patients. P. cryohaloentis has an optimum growth temperature of 22 °C. The species requires 10 mM of NaCl for growth and can tolerate a salinity of as high as 1.25 M NaCl. Cells are catalase and oxidase positive.

References

Further reading Whitman, William B., et al., eds. Bergey's manual® of systematic bacteriology. Vol. 5. Springer, 2012. Dworkin, Martin, and Stanley Falkow, eds. The Prokaryotes: Vol. 6: Proteobacteria: Gamma Subclass. Vol. 6. Springer, 2006. Bowman, John P. (2006). "The Genus Psychrobacter". The Prokaryotes: 920–930. doi:10.1007/0-387-30746-X_35. ISBN 978-0-387-25496-8.{{cite journal}}: CS1 maint: periodical has ISBN (link) Smith, David J.; Schuerger, Andrew C.; Davidson, Mark M.; Pacala, Stephen W.; Bakermans, Corien; Onstott, Tullis C. (2009). "Survivability ofPsychrobacter cryohalolentisK5 Under Simulated Martian Surface Conditions". Astrobiology. 9 (2): 221–228. Bibcode:2009AsBio...9..221S. doi:10.1089/ast.2007.0231. hdl:2060/20130012502. ISSN 1531-1074. PMID 19371162. Novototskaya-Vlasova, K. A.; Petrovskaya, L. E.; Rivkina, E. M.; Dolgikh, D. A.; Kirpichnikov, M. P. (2013). "Characterization of a cold-active lipase from Psychrobacter cryohalolentis K5T and its deletion mutants". Biochemistry (Moscow). 78 (4): 385–394. doi:10.1134/S000629791304007X. ISSN 0006-2979. PMID 23590441. S2CID 16436989. Bakermans, Corien; Tollaksen, Sandra L.; Giometti, Carol S.; Wilkerson, Curtis; Tiedje, James M.; Thomashow, Michael F. (2006). "Proteomic analysis of Psychrobacter cryohalolentis K5 during growth at subzero temperatures". Extremophiles. 11 (2): 343–354. doi:10.1007/s00792-006-0042-1. ISSN 1431-0651. PMID 17123128. S2CID 2162078.

External links LPSN "Psychrobacter cryohalolentis". The Encyclopedia of Life. Type strain of Psychrobacter cryohalolentis at BacDive - the Bacterial Diversity Metadatabase

Worked examples

Example 1 — a first encounter with Psychrobacter cryohalolentis

Start with the simplest possible case. Write down what Psychrobacter cryohalolentis 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 Psychrobacter cryohalolentis 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 Psychrobacter cryohalolentis 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 Psychrobacter cryohalolentis

In research: Psychrobacter cryohalolentis 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 Psychrobacter cryohalolentis 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: Psychrobacter cryohalolentis is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bacteria described in 2007, Gram-negative bacteria, Halophiles, so understanding it makes those chapters shorter.
In everyday life: Look for Psychrobacter cryohalolentis 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 Psychrobacter cryohalolentis in 20 minutes

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

Frequently asked questions

What is Psychrobacter cryohalolentis in simple terms?

Psychrobacter cryohalolentis is a Gram-negative, nonmotile, aerobic species of bacteria. It was first isolated from Siberian permafrost.

Why does Psychrobacter cryohalolentis 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 Psychrobacter cryohalolentis?

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 Psychrobacter cryohalolentis.