nốt rễ
Definition
- Noun:
- Nodosity (in botany): A small, round, or irregular swelling or knot, typically on the roots of certain plants, especially legumes. These structures are formed due to a symbiotic relationship with nitrogen-fixing bacteria (rhizobia).
- Root nodule: The more common biological term for this structure, which is a specialized outgrowth on plant roots containing nitrogen-fixing bacteria.
Usage Examples
- Noun:
- Cây họ đậu thường có nhiều nốt rễ chứa vi khuẩn cố định đạm. (Legume plants often have many root nodules containing nitrogen-fixing bacteria.)
- Các nhà khoa học đang nghiên cứu sự hình thành của nốt rễ. (Scientists are studying the formation of nodosities.)
Advanced Usage
- "Vi khuẩn nốt rễ" (Rhizobium bacteria): Refers specifically to the bacteria that live symbiotically within root nodules.
- Vi khuẩn nốt rễ giúp cây trồng hấp thụ nitơ từ khí quyển. (Rhizobium bacteria help plants absorb nitrogen from the atmosphere.)
Variants and Related Words
- Nốt (Noun): A general term for a nodule, spot, or note (in music). Can refer to various small, localized structures or marks.
- Củ (Noun): A tuber or bulb. While also a root structure, it is different from a , as it is typically for storage (e.g., potato, carrot).
- U (Noun): A tumor or lump. This refers to an abnormal growth, which is pathological, unlike the beneficial and normal .
Synonyms
- Nốt sần (ở rễ): Root nodule (a more descriptive synonym).
- Hạch rễ: Root tubercle (a less common synonym with a similar meaning).
Related Phrases
- Cây có nốt rễ: Nodulated plant (a plant that forms root nodules).
- Sự cố định đạm của nốt rễ: Nitrogen fixation by root nodules.
Related Idioms
(This is a specific scientific term, so there are no common idioms associated with it.)
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(thực vật) Nodosity
