biology

Sirobasidium magnum

Sirobasidium magnum 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 Sirobasidium magnum rather than just read about it. In short: Sirobasidium magnum is a species of fungus in the order Tremellales. Basidiocarps (fruit bodies) are gelatinous, lobed to foliose (leaf-like) and appear to be parasitic on ascomycetous fungi on wood.

Key takeaways

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

Reference excerpt

Sirobasidium magnum is a species of fungus in the order Tremellales. Basidiocarps (fruit bodies) are gelatinous, lobed to foliose (leaf-like) and appear to be parasitic on ascomycetous fungi on wood. No other Sirobasidium species has such large fruit bodies. The species was originally described from Indonesia, but has been reported from elsewhere in Asia and also in Australia and North America.

Taxonomy Sirobasidium magnum was described from Borneo and Java in 1934 by Dutch mycologist Karel Boedijn.

Description Fruit bodies are gelatinous, lobed and folded, and orange-brown. measuring up to 45 mm across. Basidia are catenulate (formed in chains), with up to 8 basidia in each chain. Individual basidia are oval to fusiform and transversely 2-4-septate. The sterigmata are deciduous, fusiform, 15-19 x 4-5 μm. The basidiospores are globose, 7-9 μm across.

Habitat and distribution Sirobasidium magnum was originally described on rotten wood, but is possibly parasitic on fungi in the genus Hypoxylon growing on dead attached or fallen wood. Sirobasidium magnum has been recorded from Asia (China, Indonesia, Japan, Korea, Malaysia, Philippines, Singapore, Taiwan, Thailand), Australia, the Seychelles, Tahiti, and North America (USA).

References

Illustrations

Worked examples

Example 1 — a first encounter with Sirobasidium magnum

Start with the simplest possible case. Write down what Sirobasidium magnum 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 Sirobasidium magnum 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 Sirobasidium magnum 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 Sirobasidium magnum

In research: Sirobasidium magnum 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 Sirobasidium magnum 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: Sirobasidium magnum is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fungi described in 1934, Fungi of Asia, Fungus species, so understanding it makes those chapters shorter.
In everyday life: Look for Sirobasidium magnum 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 Sirobasidium magnum in 20 minutes

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

Frequently asked questions

What is Sirobasidium magnum in simple terms?

Sirobasidium magnum is a species of fungus in the order Tremellales. Basidiocarps (fruit bodies) are gelatinous, lobed to foliose (leaf-like) and appear to be parasitic on ascomycetous fungi on wood.

Why does Sirobasidium magnum 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 Sirobasidium magnum?

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 Sirobasidium magnum.