Last Updated
：2025/12/05
root nodule
Noun
Japanese Meaning
（植物学）主にマメ科植物の根に形成される、窒素固定細菌（リゾビア）との共生により大気中の窒素を植物が利用できるようにする小さなこぶ、すなわち根粒
（ plural ）
Quizzes for review
(botany) A lump found on the roots of some plants, primarily legumes, that forms a symbiosis with nitrogen-fixing bacteria known as rhizobia, allowing the plant to obtain nitrogen directly from the atmosphere, which most plants cannot do.
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root nodule
The scientist carefully examined the root nodule under a microscope to identify the rhizobia species.
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The scientist carefully examined the root nodule under a microscope to identify the rhizobia species.
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