science

Haloferacaceae

Haloferacaceae 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 Haloferacaceae rather than just read about it. In short: Haloferacaceae is a family of halophilic, chemoorganotrophic or heterotrophic archaea within the order Haloferacales. The type genus of this family is Haloferax.

Key takeaways

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

Reference excerpt

Haloferacaceae is a family of halophilic, chemoorganotrophic or heterotrophic archaea within the order Haloferacales. The type genus of this family is Haloferax. Its biochemical characteristics are the same as the order Haloferacales. The name Haloferacaceae is derived from the Latin term Haloferax, referring to the type genus of the family and the suffix "-ceae", an ending used to denote a family. Together, Haloferacaceae refers to a family whose nomenclatural type is the genus Haloferax.

Taxonomy and molecular signatures As of 2021, Haloferacaceae contains 10 validly published genera. This family can be molecularly distinguished from other Halobacteria by the presence of five conserved signature proteins (CSPs) and four conserved signature indels (CSIs) present in the following proteins: thermosome, ribonuclease BN and hypothetical proteins.

Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI).

Unassigned Haloferacaceae:

"Candidatus Halectosymbiota" corrig. Filker et al. 2014 Salinirarus Zhang et al. 2025

Illustrations

Worked examples

Example 1 — a first encounter with Haloferacaceae

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

In research: Haloferacaceae 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 Haloferacaceae 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: Haloferacaceae is common in secondary-school and first-year university syllabi. It links to neighbouring topics Archaea stubs, Haloarchaea, so understanding it makes those chapters shorter.
In everyday life: Look for Haloferacaceae 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 Haloferacaceae in 20 minutes

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

Frequently asked questions

What is Haloferacaceae in simple terms?

Haloferacaceae is a family of halophilic, chemoorganotrophic or heterotrophic archaea within the order Haloferacales. The type genus of this family is Haloferax.

Why does Haloferacaceae 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 Haloferacaceae?

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 Haloferacaceae.