biology

Palm Creek virus

Palm Creek virus 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 Palm Creek virus rather than just read about it. In short: Palm Creek virus (PCV) is an insect virus belonging to the genus Orthoflavivirus, of the family Flaviviridae. It was discovered in 2013 from the mosquito Coquillettidia xanthogaster.

Key takeaways

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

Reference excerpt

Palm Creek virus (PCV) is an insect virus belonging to the genus Orthoflavivirus, of the family Flaviviridae. It was discovered in 2013 from the mosquito Coquillettidia xanthogaster. The female mosquitoes were originally collected in 2010 from Darwin, Katherine, Alice Springs, Alyangula, Groote Eylandt, Jabiru and the McArthur River Mine, and had since been preserved. The discovery was made by biologists at the University of Queensland. The virus is named after Palm Creek, near Darwin, from where it was originally isolated. PCV is the first insect-specific virus discovered in Australia. Genetically it most closely related to Nakiwogo virus, isolated from Mansonia mosquito in Uganda, and clustered more broadly with Culex-associated viruses, such as Culex flavivirus (CxFV).In one experiment in 2016, when cultivated mosquito [Aedes albopictus (C6/36)] cells were preinfected with PCV, human-pathogenic viruses such as West Nile and Murray Valley encephalitis viruses were found to be unable to develop in the infected cells. The follow-up experiment confirmed the fact that pre-infection of mosquitoes prevents transmission of harmful arbovirus. Further, it shown that PCV could not infect Culex annulirostris, the primary vector of encephalitic flaviviruses in Australia, through blood meal indicating that the virus is not a threat to human, or other vertebrate, health. However, the virus could be inoculated (at the thorax region) with successful infection in the C. annulirostris, Aedes aegypti and A. vigilax. This further supports the fact that preinfection of these disease-vector mosquitoes with PCV can be prevented from transmitting harmful viral diseases in humans, since a mosquito generally do not carry mixed infection. The PCV genome encodes a polyprotein that consists of 3,364 amino acids. Genetic analysis shows that it is most closely related African virus Nakiwogo virus (NAKV), sharing 63.7% nucleotide similarity. A report indicates that the virus is also closely related to Assam virus, discovered in Assam, India, in 2015. The complete structure of the 3'UTR RNA of PCV has been solved, revealing that that PCV has evolved to produce multiple sfRNAs from its 3'UTR. Duplicated xrRNAs in PCV appear to be evolutionarily selected for to provide functional redundancy allowing the production of sfRNAs if one structures is disabled by mutations.

References

External links Profile at UniProt Profile at NCBI Taxonomy Browser

Illustrations

Worked examples

Example 1 — a first encounter with Palm Creek virus

Start with the simplest possible case. Write down what Palm Creek virus 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 Palm Creek virus 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 Palm Creek virus 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 Palm Creek virus

In research: Palm Creek virus 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 Palm Creek virus 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: Palm Creek virus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Diptera pests and diseases, Flaviviruses, Insect viral diseases, so understanding it makes those chapters shorter.
In everyday life: Look for Palm Creek virus 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Palm Creek virus” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Palm Creek virus in 20 minutes

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

Frequently asked questions

What is Palm Creek virus in simple terms?

Palm Creek virus (PCV) is an insect virus belonging to the genus Orthoflavivirus, of the family Flaviviridae. It was discovered in 2013 from the mosquito Coquillettidia xanthogaster.

Why does Palm Creek virus 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 Palm Creek virus?

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 Palm Creek virus.