biology

Vibrio aerogenes

Vibrio aerogenes 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 Vibrio aerogenes rather than just read about it. In short: Vibrio aerogenes is a gram-negative organism that is rod-shaped and has a two-sheathed flagella that is found on one side of the cell that makes it motile. When it is grown on polypeptone-yeast (PY) plate medium, the colonies are usually round and flat.

Key takeaways

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

Reference excerpt

Vibrio aerogenes is a gram-negative organism that is rod-shaped and has a two-sheathed flagella that is found on one side of the cell that makes it motile. When it is grown on polypeptone-yeast (PY) plate medium, the colonies are usually round and flat. It is an organism that is mesophilic which means it likes temperatures that are between 20 and 45 °C. In addition, it is facultatively anaerobic, which means it can survive with or without oxygen. This is a marine bacteria that is most commonly found in temperatures between 30 °C and 35 °C and pH 6–7. It requires Na+ to grow and this is what makes the marine environment a necessity for this organism. V. aerogenes can ferment glucose and a few other carbohydrates to yield organic acids. When this bacteria is cultured, the medium must include Na+ but there are not any other vitamins that are needed. One possible medium that can be used is called BACTO MARINE BROTH (DIFCO 2216) (DSMZ Medium 514) and after inoculation the bacteria is grown at 28 °C. Another medium V. aerogenes can be grown on is called MEDIUM 13- Marine agar and after this medium is inoculated, the bacteria can grow at 25 °C. The bacteria can also be grown on PY medium which has the proper amount of NaCl added. The medium has to contain 4% NaCl, in order for the bacteria to properly grow. The organism can be collected from seagrass bed sediment, specifically in the Nanwan Bay, in Taiwan. This environment provides the bacteria with the perfect temperature, pH, and nutrient level. This organism lives on aquatic plants and has mostly only been isolated in this specific bay. This organism is a strain that most likely belongs to the species Vibrio and therefore the family, Vibrionaceae. The sequence of the strain has been shown through phylogenetic analysis to indicate that it has a similar sequence to other Vibrio species. In addition, data shows that this organism could be a new species because the 16S rDNA sequence is at most “96±2%” similar to other Vibrio species. The bacteria is able to use glucose to yield gas and is negative for the oxidase test, which are both quite unique characteristics for the Vibrio species. It is positive for the catalase test. The genome of V. aerogenes consists of 4,567 genes and 4,654 genes. The bacteria's genome has 45.7% GC (guanine-cytosine). The total length of the genome is around 5.25 Mb. There is still not much information and specifics on this organism, but more research is being performed.

References

External links Type strain of Vibrio aerogenes at BacDive - the Bacterial Diversity Metadatabase

Worked examples

Example 1 — a first encounter with Vibrio aerogenes

Start with the simplest possible case. Write down what Vibrio aerogenes 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 Vibrio aerogenes 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 Vibrio aerogenes 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 Vibrio aerogenes

In research: Vibrio aerogenes 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 Vibrio aerogenes 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: Vibrio aerogenes is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bacteria described in 2000, Gram-negative bacteria, Marine microorganisms, so understanding it makes those chapters shorter.
In everyday life: Look for Vibrio aerogenes 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 Vibrio aerogenes in 20 minutes

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

Frequently asked questions

What is Vibrio aerogenes in simple terms?

Why does Vibrio aerogenes 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 Vibrio aerogenes?

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 Vibrio aerogenes.