intine
Very Rare / TechnicalSpecialised Scientific / Botanical
Definition
Meaning
The inner, largely pectin-based wall of a pollen grain or spore.
A technical botanical term referring to the delicate inner layer of the two principal walls surrounding the protoplasm of a pollen grain, located beneath the tougher outer exine.
Linguistics
Semantic Notes
The intine is thin, elastic, and composed primarily of cellulose and pectin. It plays a crucial role in pollen tube germination during fertilization. The term is almost exclusively used in palynology (the study of pollen) and plant morphology.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling is identical.
Connotations
None beyond its strict scientific definition.
Frequency
Equally rare and specialised in both dialects.
Vocabulary
Collocations
Grammar
Valency Patterns
The intine of [pollen type][Pollen type] intineintine and exineintine layerVocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Not used.
Academic
Exclusively used in specialised botanical, palynological, or geological (palaeobotany) research papers and textbooks.
Everyday
Virtually never used.
Technical
Core term in palynology, plant reproductive biology, and related laboratory analyses.
Examples
By Part of Speech
adjective
British English
- The intine layer is crucial for hydration.
- Intine structure varies between species.
American English
- Intine composition was analyzed via microscopy.
- Researchers studied the intine properties.
Examples
By CEFR Level
- Under the microscope, you can see the pollen grain has two walls: a tough outer one and a soft inner one called the intine.
- The chemical composition of the intine, rich in cellulose, allows it to expand rapidly during pollen hydration.
- Fossilised pollen is often identified by the surviving features of its exine, as the intine is rarely preserved.
Learning
Memory Aids
Mnemonic
Think INside and thIN: The INTINE is the INner, thIN layer of a pollen grain.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Прямого бытового эквивалента нет. Не путать с "оболочкой" или "мембраной" в общем смысле. Это строгий научный термин "интина".
Common Mistakes
- Misspelling as 'intine' (incorrect) or 'intene'.
- Using it in a non-botanical context.
- Confusing it with 'intima' (anatomical term for an inner layer of a blood vessel).
Practice
Quiz
The intine is a part of what biological structure?
FAQ
Frequently Asked Questions
No, it is a highly specialised scientific term used almost exclusively in botany and palynology.
The intine is the soft, inner wall of a pollen grain, made of cellulose. The exine is the hard, outer wall, made of sporopollenin, which is highly resistant and often ornamented.
It would be very unusual and likely misunderstood unless you were speaking with a botanist or a geologist about pollen analysis.
Very slightly. The final vowel sound is a long 'ee' (/iː/) in British English and a shorter 'ih' (/ɪ/) or 'ee' (/i/) in American English, but the difference is minimal for such a rare word.