biology

Pestalotiopsis

Pestalotiopsis 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 Pestalotiopsis rather than just read about it. In short: Pestalotiopsis is a genus of ascomycete fungi in the Sporocadaceae family. Taxonomy The genus was circumscribed by René Leopold Alix Ghislain Jules Steyaert in Bull.

Key takeaways

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

Reference excerpt

Pestalotiopsis is a genus of ascomycete fungi in the Sporocadaceae family.

Taxonomy The genus was circumscribed by René Leopold Alix Ghislain Jules Steyaert in Bull. Jard. Bot. Etat. vol.19 on page 300 in 1949. The genus name of Pestalotiopsis is in honour of Fortunato Pestalozza (died 1878), who was an Italian botanist and doctor who worked in Constantinople and Antalya. The phylogenetic relationships of genus Pestalotiopsis and allied genera has been calculated from ribosomal DNA sequences and morphological characters in 2002. The sexual state of Pesalotiopsis is Pestalosphaeria, which was introduced by Barr (in 1975) with the type species Pestalosphaeria concentrica. This species was isolated from the grey-brown spots on the living leaves of Rhododendron maximum growing in North Carolina, USA.

Hosts Some species of Pestalotiopsis are confirmed to cause human and animal diseases. For example, Pestalotiopsis spp. have been isolated from a bronchial biopsy, corneal abrasions, eyes, feet, fingernails, scalp, and sinuses from the human body. In 2013, the first case of fungal keratitis caused by Pestalotiopsis clavispora was recorded. Pestalotiopsis species are known as plant pathogens, common endophytes or saprobes in a variety of hosts and environments. The species of fungi within this genus are normally considered as secondary pathogens that can be responsible for a variety of plant diseases, including cankers, dieback, leaf spots, needle blight, tip blight, grey blight, severe chlorosis, fruit rots and various other post-harvest diseases. Pestalotiopsis species occur as generalist endophytes in trees of Western Ghats forests of southern India. In Chile, Pestalotiopsis clavispora and other Pestalotiopsis spp. causes postharvest stem end rot on avocado plants. Pestalotiopsis spp. also cause leaf spot on Japanese persimmon. 19 different Pestalotiopsis species have been found as endophytes from bark and needles of Pinus armandii Franch. in China. Botella and Diez reported the isolation of a Pestalotiopsis sp. from Pinus halepensis Mill. in Spain, and Maharachchikumbura et al. referred to a Pestalotiopsis sp. isolated from a Pinus sp. in China. Pestalotiopsis species have also been isolated as endophytes from pine seeds of Pinus armandii in Yunnan province, China, and several other pine species across Europe and North America. Then in 2020, Pestalotiopsis pini sp. nov., was found as an emerging pathogen on stone pine (Pinus pinea L.) and on Pinus pinaster in Portugal. A new species of Pestalotiopsis from leaf spots on Licuala grandis from Hainan, China was found in 2013. Neopestalotiopsis and Pestalotiopsis species were noted as causal agents of guava scab in Colombia. In 2018, the first report of leaf spot disease of elephant apple (Dillenia indica) caused by Pestalotiopsis sp. occurred in India. In 2021, the first sighting of Pestalotiopsis chamaeropis causing leaf spot on Eurya nitida occurred in China. In the same year, Pestalotiopsis kenyana was found to cause leaf spot disease on Zanthoxylum schinifolium (a species of prickly ash) in Sichuan Province, China.

Uses Some members of the genus are able to grow on the synthetic polymer polyurethane as the sole carbon source under both aerobic and anaerobic conditions, hence show promise as a form of bioremediation for waste reduction. Some members of the genus are able to produce taxol. In 2009, Chloropestolide A, an anti-tumor metabolite was found in Pestalotiopsis fici.

Species As accepted by Species Fungorum;

Taxonomy A phylogenetic analysis in 2013 with some of the Pestalotiopsis species are found in the following tree:

Illustrations

Worked examples

Example 1 — a first encounter with Pestalotiopsis

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

In research: Pestalotiopsis 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 Pestalotiopsis 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: Pestalotiopsis is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fungal plant pathogens and diseases, Pestalotiopsis, Plastivores, so understanding it makes those chapters shorter.
In everyday life: Look for Pestalotiopsis 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 Pestalotiopsis in 20 minutes

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

Frequently asked questions

What is Pestalotiopsis in simple terms?

Pestalotiopsis is a genus of ascomycete fungi in the Sporocadaceae family. Taxonomy The genus was circumscribed by René Leopold Alix Ghislain Jules Steyaert in Bull.

Why does Pestalotiopsis 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 Pestalotiopsis?

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 Pestalotiopsis.