Root Nodules
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BIOLOGY
Plant Physiology
Root Nodules
A microscopic alliance in root nodules transforms barren soil into fertile ground
10 days ago
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What is the primary trade-off for legumes forming root nodules with rhizobia bacteria?
Rhizobia bacteria consume all the plant's nutrients without benefit
Energy and resources spent maintaining nodules versus gaining nitrogen in poor soils
Root nodules form only when soil nitrogen is abundant
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Brewster
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BIOLOGY
Plant Biology
Root Nodules
Root nodules enable legumes to naturally enrich soil by fixing atmospheric nitrogen
4 Feb 2026
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What is the primary benefit that plants receive from the nitrogen-fixing bacteria in root nodules?
Protection from soil pathogens
Increased water absorption through the roots
Conversion of atmospheric nitrogen into a usable form for the plant
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