biology

Vibrio tubiashii

Vibrio tubiashii 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 tubiashii rather than just read about it. In short: Vibrio tubiashii is a Gram-negative, rod-shaped (0.5 um-1.5 um) marine bacterium that uses a single polar flagellum for motility. It has been implicated in several diseases of marine organisms.

Key takeaways

Vibrio tubiashii 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 tubiashii to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Vibrio tubiashii from memory before moving on to harder problems.

Reference excerpt

Vibrio tubiashii is a Gram-negative, rod-shaped (0.5 um-1.5 um) marine bacterium that uses a single polar flagellum for motility. It has been implicated in several diseases of marine organisms.

Discovery Vibrio tubiashii was originally isolated from juvenile and larval bivalve mollusks suffering from bacillary necrosis, now called vibriosis. It was originally discovered by Tubiash et al. in 1965, hence the name, but not properly described until Hada et al. in 1984. Since its discovery and identification, V. tubiashii has been implicated in shellfish vibriosis across the globe, and more recently, coral diseases.

Pathogenicity Like many Vibrio spp., V. tubiashii produces extracellular enzymes, specifically a zinc-metalloprotease and a cytolysin/hemolysin that are nearly identical to those produced by other pathogenic Vibrio strains. This being said, only the zinc-metalloprotease elicited disease symptoms in Crassostrea gigas consistent with vibriosis. In addition to shellfish disease, Vibrio-derived zinc-metalloprotease could be an integral virulence factor in diseases of scleractinian corals as it was shown to cause photoinactivation of the coral endosymbiont Symbiodinium, leading to tissue color loss and eventual tissue death. The hemolytic activity of V. tubiashii cultures increases during early growth stages and progressively decreases throughout the stationary phase, while proteolytic activity shows a gradual increase starting in the early stationary phase, suggesting that pathogenesis in this organism requires higher cell density.

References

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

Worked examples

Example 1 — a first encounter with Vibrio tubiashii

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

In research: Vibrio tubiashii 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 tubiashii 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 tubiashii is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bacterial diseases, Marine microorganisms, Vibrio, so understanding it makes those chapters shorter.
In everyday life: Look for Vibrio tubiashii 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 tubiashii in 20 minutes

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

Frequently asked questions

What is Vibrio tubiashii in simple terms?

Vibrio tubiashii is a Gram-negative, rod-shaped (0.5 um-1.5 um) marine bacterium that uses a single polar flagellum for motility. It has been implicated in several diseases of marine organisms.

Why does Vibrio tubiashii 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 tubiashii?

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 tubiashii.