nốt sần
Definition
- Noun:
- Root nodule: A small, round swelling on the roots of certain plants, especially legumes, formed as a result of a symbiotic relationship with nitrogen-fixing bacteria (rhizobia). These structures are crucial for converting atmospheric nitrogen into a form the plant can use.
- Tubercle (in a botanical context): A small, knob-like growth or swelling on a plant part.
Usage Examples
- Noun:
- Cây đậu phát triển tốt nhờ các nốt sần trên rễ cố định đạm. (The bean plant grows well thanks to the nitrogen-fixing nodules on its roots.)
- Nốt sần là dấu hiệu của mối quan hệ cộng sinh giữa cây và vi khuẩn. (The root nodule is a sign of a symbiotic relationship between the plant and bacteria.)
Advanced Usage
- The term is primarily technical and used in botany, agriculture, and biology. It is not commonly used in everyday conversation outside of these contexts.
Variants and Related Words
- Nốt rễ: A synonym meaning "root nodule." The reference definition "nốt sần (bot.) như nốt rễ" indicates they are equivalent terms.
- U sần: A more general term for a tubercle or lumpy swelling, which can be used in other contexts like medicine or dermatology.
Synonyms
- Root nodule
- Nitrogen-fixing nodule
- Tubercle (in botany)
Related Concepts
- Cố định đạm / Nitrogen fixation: The biological process carried out within the nốt sần.
- Vi khuẩn rhizobia / Rhizobia bacteria: The microorganisms that inhabit the nốt sần and perform nitrogen fixation.
- Cây họ đậu / Legumes: The family of plants most commonly associated with forming nốt sần on their roots.