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← Nature & AnimalsWhich cellular process occurs following increased root exudation?
A)Enhanced symbiotic nitrogen fixation✓
B)Increased xylem structural development
C)Decreased soil mycorrhizal network uptake
D)Reduced pathogen induced systemic resistance
💡 Explanation
Increased root exudation stimulates bacterial chemotaxis and nod factor gene expression which leads to enhanced symbiotic nitrogen fixation, because more carbohydrates trigger greater colonization by diazotroph populations. Therefore nitrogen increases locally, rather than resulting in plant structural change.
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